<link>http://people.skolelinux.org/pere/blog/</link>
<atom:link href="http://people.skolelinux.org/pere/blog/index.rss" rel="self" type="application/rss+xml" />
+ <item>
+ <title>Artikkel om Noark 5 Tjenestegrensesnitt og Nikita i Arkivråd nummer 3 for 2019</title>
+ <link>http://people.skolelinux.org/pere/blog/Artikkel_om_Noark_5_Tjenestegrensesnitt_og_Nikita_i_Arkivr_d_nummer_3_for_2019.html</link>
+ <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/Artikkel_om_Noark_5_Tjenestegrensesnitt_og_Nikita_i_Arkivr_d_nummer_3_for_2019.html</guid>
+ <pubDate>Thu, 26 Dec 2019 08:00:00 +0100</pubDate>
+ <description><p>Like før julaften ble en artikkel jeg har skrevet om vedlikehold av
+<a href="https://github.com/arkivverket/noark5-tjenestegrensesnitt-standard">Noark
+5 Tjenestegrensesnitt</a> og Nikita publisert i <a
+href="https://www.arkivrad.no/arkivrad">tidsskriftet Arkivråd</a>.
+Det er basert på
+<a href="http://people.skolelinux.org/pere/blog/_pen_og_gjennomsiktig_vedlikehold_av_spesifikasjonen_for_Noark_5_Tjenestegrensesnitt.html">min bloggpost
+om samme tema</a> som ble publisert 2019-03-11. Jeg oppdaget nettopp
+at nettsiden til tidsskriftet Arkivråd er oppdatert med siste utgave,
+og artikkelen dermed er tilgjengelig for alle. Du finner den i
+<a href="https://www.arkivrad.no/sites/arkivrad/files/arkivrad_03_2019_nett.pdf">PDF-en
+til nummer 2019/3 på side 30-33</a>. Jeg håper leserne av
+tidsskriftet får lyst til å sjekke ut tjenestegrensesnittet og at
+artikkelen vil gjøre det enklere for flere å bidra til en enda bedre,
+klarere og mer entydig API-spesifikasjon. Det kan gjøre at
+<a href="https://gitlab.com/OsloMet-ABI/nikita-noark5-core/">arkivsystemet
+Nikita</a> kan bli enda bedre når spesifikasjonen forbedres.</p>
+
+<p>Som vanlig, hvis du bruker Bitcoin og ønsker å vise din støtte til
+det jeg driver med, setter jeg pris på om du sender Bitcoin-donasjoner
+til min adresse
+<b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.
+Merk, betaling med bitcoin er ikke anonymt. :)</p>
+</description>
+ </item>
+
+ <item>
+ <title>Meningsløst, men for hvem...</title>
+ <link>http://people.skolelinux.org/pere/blog/Meningsl_st__men_for_hvem___.html</link>
+ <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/Meningsl_st__men_for_hvem___.html</guid>
+ <pubDate>Wed, 25 Dec 2019 10:35:00 +0100</pubDate>
+ <description><p>En historie som har betydd endel for meg, og som jeg av og til
+tenker på når hverdagen tynger, ble så vidt jeg har klart å finne ut,
+skrevet av <a href="https://en.wikipedia.org/wiki/Loren_Eiseley">Loren
+Eiseley</a> <a href="https://en.wikipedia.org/wiki/The_Star_Thrower">i
+flere ulike varianter</a>. På norsk tror jeg den går under navnet
+«Gutten og sjøstjernen», og jeg fant en oversettelse av en utgave av den
+hos
+<a href="https://no.quora.com/Hva-er-din-favoritthistorie">Quora</a>.
+Fant også <a href="https://www.youtube.com/watch?v=-qClChUdlfI">en
+filmatisering</a>, men den versjonen jeg liker best fant jeg
+<a href="https://www.goodreads.com/author/quotes/56782.Loren_Eiseley">hos
+Goodreads</a>. Jeg oversatte den utgaven til norsk i går, og har lyst
+til å dele den med deg:
+
+<blockquote><p>Mens jeg tok en pause fra skrivingen og vandret på en
+øde strand ved daggry, så jeg en gutt i det fjerne bøye seg ned og
+kaste noe mens han vandret mot meg over den endeløse stranden. Da han
+kom nærmere, kunne jeg se at han kastet sjøstjerner, som var etterlatt
+i sanden av tidevannet, tilbake i havet. Da han var nær nok spurte jeg
+ham hvorfor han jobbet så hardt på denne merkelige oppgaven. Han sa at
+solen snart ville stå opp og tørke sjøstjernene slik at de ville
+dø.</p>
+
+<p>Jeg sa til ham at dette var helt meningsløst. Det var kilometer på
+kilometer med strand, og det lå sjøstjerner hele veien. En person
+alene kunne ikke gjøre noen forskjell. Han smilte da han plukket opp
+neste sjøstjerne. Mens han kastet den så langt ut i havet som han
+klarte sa han, «for denne gjør det en forskjell». Jeg droppet
+skrivingen og tilbrakte resten av morgenen med å kaste
+sjøstjerner.</p>
+
+<p>- Loren Eiseley</p>
+</blockquote>
+
+<p>Kanskje noe du også kan ha glede av å tenke på når ting virker
+håpløst?</p>
+
+<p>Teksten er gjengitt og oversatt basert på utgaven på Good Read,
+uten tillatelse fra noen andre enn meg selv. Jeg håper på tilgivelse,
+hvis det er et problem for noen, da det er gjort i beste mening. Hvis
+eventuell rettighetshaver tar kontakt vil jeg fjerne teksten og i
+stedet legge ut henvendelsen der teksten kreves fjernet.</p>
+
+<p>Som vanlig, hvis du bruker Bitcoin og ønsker å vise din støtte til
+det jeg driver med, setter jeg pris på om du sender Bitcoin-donasjoner
+til min adresse
+<b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.
+Merk, betaling med bitcoin er ikke anonymt. :)</p>
+</description>
+ </item>
+
+ <item>
+ <title>Artikkel om Nikita i Arkheion nummer 2019/2</title>
+ <link>http://people.skolelinux.org/pere/blog/Artikkel_om_Nikita_i_Arkheion_nummer_2019_2.html</link>
+ <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/Artikkel_om_Nikita_i_Arkheion_nummer_2019_2.html</guid>
+ <pubDate>Mon, 9 Dec 2019 15:05:00 +0100</pubDate>
+ <description><p>Jeg hadde i dag gleden av å oppdage at en artikkel om
+<a href="https://gitlab.com/OsloMet-ABI/nikita-noark5-core/">arkivsystemet
+Nikita</a> som vi skrev i sommer, nå er publisert i
+<a href="http://www.arkheion.no/">Arkheion, fagtidsskrift for kommunial
+arkivsektor</a>. Du finner artikkelen på side 30-33 i nummer 2019/2,
+PDF kan lastes ned fra nettstedet til tidsskriftet. Kanskje
+publiseringen kan føre til at noen flere får øynene opp for verdien av
+et åpent standardisert API for arkivering og søk i arkivet.</p>
+
+<p>Som vanlig, hvis du bruker Bitcoin og ønsker å vise din støtte til
+det jeg driver med, setter jeg pris på om du sender Bitcoin-donasjoner
+til min adresse
+<b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.
+Merk, betaling med bitcoin er ikke anonymt. :)</p>
+</description>
+ </item>
+
+ <item>
+ <title>When terms and policy turn users away</title>
+ <link>http://people.skolelinux.org/pere/blog/When_terms_and_policy_turn_users_away.html</link>
+ <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/When_terms_and_policy_turn_users_away.html</guid>
+ <pubDate>Sat, 7 Dec 2019 21:15:00 +0100</pubDate>
+ <description><p>When asked to accept terms of use and privacy policies that state
+it will to remove rights I otherwise had or accept unreasonable terms
+undermining my privacy, I choose away the service. I simply do not
+have the conscience to accept terms I have no indention of upholding.
+But how are the system and service providers to know how many people
+they scared away? Normally I just quietly walk away. But today, I
+tried a new approach. I sent the following email (removing the
+specifics, as I am not out to take the specific service in question)
+to the service provider I decided to not use, to at least give them
+one data point on how many users are unhappy with their terms:</p>
+
+<blockquote>
+From: Petter Reinholdtsen
+<br>Subject: When terms of use turn users away
+<br>To: [contact@some.site]
+<br>Date: Sat, 07 Dec 2019 16:30:56 +0100
+
+<p>Dear [Site Owner],</p>
+
+<p>I was eager to test the system, as it seemed like a fun and
+interesting application of [some] technology, but after reading the
+terms of use and privacy policy on &lt;URL:
+https://www.[some.site]/terms-of-use &gt; and &lt;URL:
+https://www.[some.site]/privacy-policy &gt; I want you to know that I
+decided to turn away. There were several provisions in the terms and
+policy turning me off, but the final term that convinced me was being
+asked to sign away my right to reverse engineer.</p>
+
+<p>--
+<br>Happy hacking
+<br>Petter Reinholdtsen</p>
+</blockquote>
+
+<p>I do not expect much to come out of it, but sharing it here in case
+others want to give something similar a try too. If companies
+discover their terms scare away enough people, perhaps they will be
+improved...</p>
+
+<p>As usual, if you use Bitcoin and want to show your support of my
+activities, please send Bitcoin donations to my address
+<b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
+</description>
+ </item>
+
+ <item>
+ <title>What would it cost to store all 2018 phone calls in Norway?</title>
+ <link>http://people.skolelinux.org/pere/blog/What_would_it_cost_to_store_all_2018_phone_calls_in_Norway_.html</link>
+ <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/What_would_it_cost_to_store_all_2018_phone_calls_in_Norway_.html</guid>
+ <pubDate>Mon, 25 Nov 2019 20:15:00 +0100</pubDate>
+ <description><p>Four years ago, I did a back of the envelope calculation on
+<a href="http://people.skolelinux.org/pere/blog/What_would_it_cost_to_store_all_phone_calls_in_Norway_.html">how
+much it would cost to store audio recordings of all the phone calls in
+Norway</a>, and came up with NOK 2.1 million / EUR 250 000 for the
+year 2013. It is time to repeat the calculation using updated
+numbers. The calculation is based on how much data storage is needed
+for each minute of audio, how many minutes all the calls in Norway
+sums up to, multiplied by the cost of data storage.</p>
+
+<p>The number of phone call minutes for 2018 was fetched from
+<a href="https://ekomstatistikken.nkom.no/">the NKOM statistics
+site</a>, and for 2018, land line calls are listed as 434 238 000
+minutes, while mobile phone calls are listed with 7 542 006 000
+minutes. The total number of minutes is thus 7 976 244 000. For
+simplicity, I decided to ignore any advantages in audio compression the
+last four years, and continue to assume 60 Kbytes/min as the last
+time.</p>
+
+<p>Storage prices still varies a lot, but as last time, I decide to
+take a reasonable big and cheap hard drive, and double its price to
+include the surrounding costs into account. A 10 TB disk cost less
+than 4500 NOK / 450 EUR these days, and doubling it give 9000 NOK per
+10 TB.</p>
+
+<p>So, with the parameters in place, lets update the old table
+estimating cost for calls in a given year:</p>
+
+<table border="1">
+<tr><th>Year</th><th>Call minutes</th><th>Size</th><th>Price in NOK / EUR</th></tr>
+<tr><td>2005</td><td align="right">24 000 000 000</td><td align="right">1.3 PiB</td><td align="right">1 170 000 / 117 000</td></tr>
+
+<tr><td>2012</td><td align="right">18 000 000 000</td><td align="right">1.0 PiB</td><td align="right">900 000 / 90 000</td></tr>
+
+<tr><td>2013</td><td align="right">17 000 000 000</td><td align="right">950 TiB</td><td align="right">855 000 / 85 500</td></tr>
+
+<tr><td>2018</td><td align="right">7 976 244 000</td><td align="right">445 TiB</td><td align="right">401 100 / 40 110</td></tr>
+</table>
+
+<p>Both the cost of storage and the number of phone call minutes have
+dropped since the last time, bringing the cost down to a level where I
+guess even small organizations can afford to store the audio recording
+from every phone call taken in a year in Norway. Of course, this is
+just the cost of buying the storage equipment. Maintenance, need to
+be included as well, but the volume of a single year is about a single
+rack of hard drives, so it is not much more than I could fit in my own
+home. Wonder how much the electricity bill would raise if I had that
+kind of storage? I doubt it would be more than a few tens of thousand
+NOK per year.</p>
+</description>
+ </item>
+
+ <item>
+ <title>Norwegian movies that might be legal to share on the Internet</title>
+ <link>http://people.skolelinux.org/pere/blog/Norwegian_movies_that_might_be_legal_to_share_on_the_Internet.html</link>
+ <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/Norwegian_movies_that_might_be_legal_to_share_on_the_Internet.html</guid>
+ <pubDate>Sun, 1 Sep 2019 11:10:00 +0200</pubDate>
+ <description><p>While working on identifying and counting movies that can be
+legally shared on the Internet, I also looked at the Norwegian movies
+listed in IMDb. So far I have identified 54 candidates published
+before 1940 that might no longer be protected by norwegian copyright
+law. Of these, only 29 are available at least in part from the
+Norwegian National Library. It can be assumed that the remaining 25
+movies are lost. It seem most useful to identify the copyright status
+of movies that are not lost. To verify that the movie is really no
+longer protected, one need to verify the list of copyright holders and
+figure out if and when they died. I've been able to identify some of
+them, but for some it is hard to figure out when they died.</p>
+
+</p>This is the list of 29 movies both available from the library and
+possibly no longer protected by copyright law. The year range
+(1909-1979 on the first line) is year of publication and last year
+with copyright protection.</p>
+
+<pre>
+1909-1979 ( 70 year) NSB Bergensbanen 1909 - http://www.imdb.com/title/tt0347601/
+1910-1980 ( 70 year) Bjørnstjerne Bjørnsons likfærd - http://www.imdb.com/title/tt9299304/
+1910-1980 ( 70 year) Bjørnstjerne Bjørnsons begravelse - http://www.imdb.com/title/tt9299300/
+1912-1998 ( 86 year) Roald Amundsens Sydpolsferd (1910-1912) - http://www.imdb.com/title/tt9237500/
+1913-2006 ( 93 year) Roald Amundsen på sydpolen - http://www.imdb.com/title/tt0347886/
+1917-1987 ( 70 year) Fanden i nøtten - http://www.imdb.com/title/tt0346964/
+1919-2018 ( 99 year) Historien om en gut - http://www.imdb.com/title/tt0010259/
+1920-1990 ( 70 year) Kaksen på Øverland - http://www.imdb.com/title/tt0011361/
+1923-1993 ( 70 year) Norge - en skildring i 6 akter - http://www.imdb.com/title/tt0014319/
+1925-1997 ( 72 year) Roald Amundsen - Ellsworths flyveekspedition 1925 - http://www.imdb.com/title/tt0016295/
+1925-1995 ( 70 year) En verdensreise, eller Da knold og tott vaskede negrene hvite med 13 sæpen - http://www.imdb.com/title/tt1018948/
+1926-1996 ( 70 year) Luftskibet 'Norge's flugt over polhavet - http://www.imdb.com/title/tt0017090/
+1926-1996 ( 70 year) Med 'Maud' over Polhavet - http://www.imdb.com/title/tt0017129/
+1927-1997 ( 70 year) Den store sultan - http://www.imdb.com/title/tt1017997/
+1928-1998 ( 70 year) Noahs ark - http://www.imdb.com/title/tt1018917/
+1928-1998 ( 70 year) Skjæbnen - http://www.imdb.com/title/tt1002652/
+1928-1998 ( 70 year) Chefens cigarett - http://www.imdb.com/title/tt1019896/
+1929-1999 ( 70 year) Se Norge - http://www.imdb.com/title/tt0020378/
+1929-1999 ( 70 year) Fra Chr. Michelsen til Kronprins Olav og Prinsesse Martha - http://www.imdb.com/title/tt0019899/
+1930-2000 ( 70 year) Mot ukjent land - http://www.imdb.com/title/tt0021158/
+1930-2000 ( 70 year) Det er natt - http://www.imdb.com/title/tt1017904/
+1930-2000 ( 70 year) Over Besseggen på motorcykel - http://www.imdb.com/title/tt0347721/
+1931-2001 ( 70 year) Glimt fra New York og den Norske koloni - http://www.imdb.com/title/tt0021913/
+1932-2007 ( 75 year) En glad gutt - http://www.imdb.com/title/tt0022946/
+1934-2004 ( 70 year) Den lystige radio-trio - http://www.imdb.com/title/tt1002628/
+1935-2005 ( 70 year) Kronprinsparets reise i Nord Norge - http://www.imdb.com/title/tt0268411/
+1935-2005 ( 70 year) Stormangrep - http://www.imdb.com/title/tt1017998/
+1936-2006 ( 70 year) En fargesymfoni i blått - http://www.imdb.com/title/tt1002762/
+1939-2009 ( 70 year) Til Vesterheimen - http://www.imdb.com/title/tt0032036/
+</pre>
+
+To be sure which one of these can be legally shared on the Internet,
+in addition to verifying the right holders list is complete, one need
+to verify the death year of these persons:
+
+<pre>
+Bjørnstjerne Bjørnson (dead 1910) - http://www.imdb.com/name/nm0085085/
+Gustav Adolf Olsen (missing death year) - http://www.imdb.com/name/nm0647652/
+Gustav Lund (missing death year) - http://www.imdb.com/name/nm0526168/
+John W. Brunius (dead 1937) - http://www.imdb.com/name/nm0116307/
+Ola Cornelius (missing death year) - http://www.imdb.com/name/nm1227236/
+Oskar Omdal (dead 1927) - http://www.imdb.com/name/nm3116241/
+Paul Berge (missing death year) - http://www.imdb.com/name/nm0074006/
+Peter Lykke-Seest (dead 1948) - http://www.imdb.com/name/nm0528064/
+Roald Amundsen (dead 1928) - https://www.imdb.com/name/nm0025468/
+Sverre Halvorsen (dead 1936) - http://www.imdb.com/name/nm1299757/
+Thomas W. Schwartz (missing death year) - http://www.imdb.com/name/nm2616250/
+</pre>
+
+<p>Perhaps you can help me figuring death year of those missing it, or
+right holders if some are missing in IMDb? It would be nice to have a
+definite list of Norwegian movies that are legal to share on the
+Internet.</p>
+
+</p>This is the list of 25 movies not available from the library and
+possibly no longer protected by copyright law:</p>
+
+<pre>
+1907-2009 (102 year) Fiskerlivets farer - http://www.imdb.com/title/tt0121288/
+1912-2018 (106 year) Historien omen moder - http://www.imdb.com/title/tt0382852/
+1912-2002 ( 90 year) Anny - en gatepiges roman - http://www.imdb.com/title/tt0002026/
+1916-1986 ( 70 year) The Mother Who Paid - http://www.imdb.com/title/tt3619226/
+1917-2018 (101 year) En vinternat - http://www.imdb.com/title/tt0008740/
+1917-2018 (101 year) Unge hjerter - http://www.imdb.com/title/tt0008719/
+1917-2018 (101 year) De forældreløse - http://www.imdb.com/title/tt0007972/
+1918-2018 (100 year) Vor tids helte - http://www.imdb.com/title/tt0009769/
+1918-2018 (100 year) Lodsens datter - http://www.imdb.com/title/tt0009314/
+1919-2018 ( 99 year) Æresgjesten - http://www.imdb.com/title/tt0010939/
+1921-2006 ( 85 year) Det nye year? - http://www.imdb.com/title/tt0347686/
+1921-1991 ( 70 year) Under Polarkredsens himmel - http://www.imdb.com/title/tt0012789/
+1923-1993 ( 70 year) Nordenfor polarcirkelen - http://www.imdb.com/title/tt0014318/
+1925-1995 ( 70 year) Med 'Stavangerfjord' til Nordkap - http://www.imdb.com/title/tt0016098/
+1926-1996 ( 70 year) Over Atlanterhavet og gjennem Amerika - http://www.imdb.com/title/tt0017241/
+1926-1996 ( 70 year) Hallo! Amerika! - http://www.imdb.com/title/tt0016945/
+1926-1996 ( 70 year) Tigeren Teodors triumf - http://www.imdb.com/title/tt1008052/
+1927-1997 ( 70 year) Rød sultan - http://www.imdb.com/title/tt1017979/
+1927-1997 ( 70 year) Søndagsfiskeren Flag - http://www.imdb.com/title/tt1018002/
+1930-2000 ( 70 year) Ro-ro til fiskeskjær - http://www.imdb.com/title/tt1017973/
+1933-2003 ( 70 year) I kongens klær - http://www.imdb.com/title/tt0024164/
+1934-2004 ( 70 year) Eventyret om de tre bukkene bruse - http://www.imdb.com/title/tt1007963/
+1934-2004 ( 70 year) Pål sine høner - http://www.imdb.com/title/tt1017966/
+1937-2007 ( 70 year) Et mesterverk - http://www.imdb.com/title/tt1019937/
+1938-2008 ( 70 year) En Harmony - http://www.imdb.com/title/tt1007975/
+</pre>
+
+<p>Several of these movies completely lack right holder information in
+IMDb and elsewhere. Without access to a copy of the movie, it is
+often impossible to get the list of people involved in making the
+movie, making it impossible to figure out the correct copyright
+status.</p>
+
+<p>Not listed here are the movies still protected by copyright law.
+Their copyright terms varies from 79 to 144 years, according to the
+information I have available so far. One of the non-lost movies might
+change status next year,
+<a href="https://www.imdb.com/title/tt1008007/">Mustads Mono from 1920</a>.
+The next one might be
+<a href="https://www.imdb.com/title/tt0347215/">Hvor isbjørnen ferdes
+from 1935</a> in 2024.</p>
+
+<p>As usual, if you use Bitcoin and want to show your support of my
+activities, please send Bitcoin donations to my address
+<b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
+</description>
+ </item>
+
+ <item>
+ <title>Legal to share more than 16,000 movies listed on IMDB?</title>
+ <link>http://people.skolelinux.org/pere/blog/Legal_to_share_more_than_16_000_movies_listed_on_IMDB_.html</link>
+ <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/Legal_to_share_more_than_16_000_movies_listed_on_IMDB_.html</guid>
+ <pubDate>Sat, 10 Aug 2019 12:00:00 +0200</pubDate>
+ <description><p>The recent announcement of from the New York Public Library on its
+results in
+<a href="https://www.vice.com/en_us/article/kz4e3e/millions-of-books-are-secretly-in-the-public-domain-you-can-download-them-free">identifying
+books published in the USA that are now in the public domain</a>,
+inspired me to update the scripts I use to track down movies that are
+in the public domain. This involved updating the script used to
+extract lists of movies believed to be in the public domain, to work
+with the latest version of the source web sites. In particular the
+new edition of the <a href="https://retrofilmvault.com/">Retro Film
+Vault</a> web site now seem to list all the films available from that
+distributor, bringing the films identified there to more than 12.000
+movies, and I was able to connect 46% of these to IMDB titles.</p>
+
+<p>The new total is 16307 IMDB IDs (aka films) in the public domain or
+creative commons licensed, and unknown status for 31460 movies
+(possibly duplicates of the 16307).</p>
+
+<p>The complete data set is available from
+<a href="https://github.com/petterreinholdtsen/public-domain-free-imdb">a
+public git repository</a>, including the scripts used to create it.</p>
+
+<p>Anyway, this is the summary of the 28 collected data sources so
+far:</p>
+
+<p><pre>
+ 2361 entries ( 50 unique) with and 22472 without IMDB title ID in free-movies-archive-org-search.json
+ 2363 entries ( 146 unique) with and 0 without IMDB title ID in free-movies-archive-org-wikidata.json
+ 299 entries ( 32 unique) with and 93 without IMDB title ID in free-movies-cinemovies.json
+ 88 entries ( 52 unique) with and 36 without IMDB title ID in free-movies-creative-commons.json
+ 3190 entries ( 1532 unique) with and 13 without IMDB title ID in free-movies-fesfilm-xls.json
+ 620 entries ( 24 unique) with and 283 without IMDB title ID in free-movies-fesfilm.json
+ 1080 entries ( 165 unique) with and 651 without IMDB title ID in free-movies-filmchest-com.json
+ 830 entries ( 13 unique) with and 0 without IMDB title ID in free-movies-icheckmovies-archive-mochard.json
+ 19 entries ( 19 unique) with and 0 without IMDB title ID in free-movies-imdb-c-expired-gb.json
+ 7410 entries ( 7101 unique) with and 0 without IMDB title ID in free-movies-imdb-c-expired-us.json
+ 1205 entries ( 41 unique) with and 0 without IMDB title ID in free-movies-imdb-pd.json
+ 163 entries ( 22 unique) with and 88 without IMDB title ID in free-movies-infodigi-pd.json
+ 158 entries ( 103 unique) with and 0 without IMDB title ID in free-movies-letterboxd-looney-tunes.json
+ 113 entries ( 4 unique) with and 0 without IMDB title ID in free-movies-letterboxd-pd.json
+ 182 entries ( 71 unique) with and 0 without IMDB title ID in free-movies-letterboxd-silent.json
+ 248 entries ( 85 unique) with and 0 without IMDB title ID in free-movies-manual.json
+ 158 entries ( 4 unique) with and 64 without IMDB title ID in free-movies-mubi.json
+ 85 entries ( 1 unique) with and 23 without IMDB title ID in free-movies-openflix.json
+ 520 entries ( 22 unique) with and 244 without IMDB title ID in free-movies-profilms-pd.json
+ 343 entries ( 14 unique) with and 10 without IMDB title ID in free-movies-publicdomainmovies-info.json
+ 701 entries ( 16 unique) with and 560 without IMDB title ID in free-movies-publicdomainmovies-net.json
+ 74 entries ( 13 unique) with and 60 without IMDB title ID in free-movies-publicdomainreview.json
+ 698 entries ( 16 unique) with and 118 without IMDB title ID in free-movies-publicdomaintorrents.json
+ 5506 entries ( 2941 unique) with and 6585 without IMDB title ID in free-movies-retrofilmvault.json
+ 16 entries ( 0 unique) with and 0 without IMDB title ID in free-movies-thehillproductions.json
+ 110 entries ( 2 unique) with and 29 without IMDB title ID in free-movies-two-movies-net.json
+ 73 entries ( 20 unique) with and 131 without IMDB title ID in free-movies-vodo.json
+16307 unique IMDB title IDs in total, 12509 only in one list, 31460 without IMDB title ID
+</pre></p>
+
+<p>New this time is a list of all the identified IMDB titles, with
+title, year and running time, provided in free-complete.json. this
+file also indiciate which source is used to conclude the video is free
+to distribute.</p>
+
+<p>As usual, if you use Bitcoin and want to show your support of my
+activities, please send Bitcoin donations to my address
+<b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
+</description>
+ </item>
+
<item>
<title>Oppdatert Noark 5 Tjenestegrenesnitt versjon 1.0 for Noark 5.5.0</title>
<link>http://people.skolelinux.org/pere/blog/Oppdatert_Noark_5_Tjenestegrenesnitt_versjon_1_0_for_Noark_5_5_0.html</link>
for sjansene for å få inn nødvendige korreksjoner i
spesifikasjonsteksten innen rimelig tid, men takket være intens og god
innsats fra Mona og Anne Sofie hos Arkivverket de siste ukene, så ble
-resultatet som ble gitt ut på USAs frigjøringsdag mye bedre enn jeg
+resultatet som ble gitt ut på USAs uavhengighetsdag mye bedre enn jeg
fryktet.</p>
<p>Spesifikasjonen er
<p>Ellers må jeg jo si at det var hyggelig å se at min forrige
bloggpost om tjenestegrensesnittet fikk en
-<ahref="https://beta.arkivverket.no/post/186020592045/noark-5-versjon-50-tjenestegrensesnitt-10">lenke
+<a href="https://beta.arkivverket.no/post/186020592045/noark-5-versjon-50-tjenestegrensesnitt-10">lenke
fra Arkivverket Beta</a>.</p>
<p>Som vanlig, hvis du bruker Bitcoin og ønsker å vise din støtte til
</description>
</item>
- <item>
- <title>Jami/Ring, finally functioning peer to peer communication client</title>
- <link>http://people.skolelinux.org/pere/blog/Jami_Ring__finally_functioning_peer_to_peer_communication_client.html</link>
- <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/Jami_Ring__finally_functioning_peer_to_peer_communication_client.html</guid>
- <pubDate>Wed, 19 Jun 2019 08:50:00 +0200</pubDate>
- <description><p>Some years ago, in 2016, I
-<a href="http://people.skolelinux.org/pere/blog/Experience_and_updated_recipe_for_using_the_Signal_app_without_a_mobile_phone.html">wrote
-for the first time about</a> the Ring peer to peer messaging system.
-It would provide messaging without any central server coordinating the
-system and without requiring all users to register a phone number or
-own a mobile phone. Back then, I could not get it to work, and put it
-aside until it had seen more development. A few days ago I decided to
-give it another try, and am happy to report that this time I am able
-to not only send and receive messages, but also place audio and video
-calls. But only if UDP is not blocked into your network.</p>
-
-<p>The Ring system changed name earlier this year to
-<a href="https://en.wikipedia.org/wiki/Jami_(software)">Jami</a>. I
-tried doing web search for 'ring' when I discovered it for the first
-time, and can only applaud this change as it is impossible to find
-something called Ring among the noise of other uses of that word. Now
-you can search for 'jami' and this client and
-<a href="https://jami.net/">the Jami system</a> is the first hit at
-least on duckduckgo.</p>
-
-<p>Jami will by default encrypt messages as well as audio and video
-calls, and try to send them directly between the communicating parties
-if possible. If this proves impossible (for example if both ends are
-behind NAT), it will use a central SIP TURN server maintained by the
-Jami project. Jami can also be a normal SIP client. If the SIP
-server is unencrypted, the audio and video calls will also be
-unencrypted. This is as far as I know the only case where Jami will
-do anything without encryption.</p>
-
-<p>Jami is available for several platforms: Linux, Windows, MacOSX,
-Android, iOS, and Android TV. It is included in Debian already. Jami
-also work for those using F-Droid without any Google connections,
-while Signal do not.
-<a href="https://git.jami.net/savoirfairelinux/ring-project/wikis/technical/Protocol">The
-protocol</a> is described in the Ring project wiki. The system uses a
-distributed hash table (DHT) system (similar to BitTorrent) running
-over UDP. On one of the networks I use, I discovered Jami failed to
-work. I tracked this down to the fact that incoming UDP packages
-going to ports 1-49999 were blocked, and the DHT would pick a random
-port and end up in the low range most of the time. After talking to
-the developers, I solved this by enabling the dhtproxy in the
-settings, thus using TCP to talk to a central DHT proxy instead of
-
-peering directly with others. I've been told the developers are
-working on allowing DHT to use TCP to avoid this problem. I also ran
-into a problem when trying to talk to the version of Ring included in
-Debian Stable (Stretch). Apparently the protocol changed between
-beta2 and the current version, making these clients incompatible.
-Hopefully the protocol will not be made incompatible in the
-future.</p>
-
-<p>It is worth noting that while looking at Jami and its features, I
-came across another communication platform I have not tested yet. The
-<a href="https://en.wikipedia.org/wiki/Tox_(protocol)">Tox protocol</a>
-and <a href="https://tox.chat/">family of Tox clients</a>. It might
-become the topic of a future blog post.</p>
-
-<p>As usual, if you use Bitcoin and want to show your support of my
-activities, please send Bitcoin donations to my address
-<b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
-</description>
- </item>
-
- <item>
- <title>More sales number for my Free Culture paper editions (2019-edition)</title>
- <link>http://people.skolelinux.org/pere/blog/More_sales_number_for_my_Free_Culture_paper_editions__2019_edition_.html</link>
- <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/More_sales_number_for_my_Free_Culture_paper_editions__2019_edition_.html</guid>
- <pubDate>Tue, 11 Jun 2019 16:05:00 +0200</pubDate>
- <description><p>The first book I published,
-<a href="http://www.free-culture.cc/">Free Culture by Lawrence
-Lessig</a>, is still selling a few copies. Not a lot, but enough to
-have contributed slightly over $500 to the <a
-href="https://creativecommons.org/">Creative Commons Corporation</a>
-so far. All the profit is sent there. Most books are still sold via
-Amazon (83 copies), with Ingram second (49) and Lulu (12) and Machette (7) as
-minor channels. Bying directly from Lulu bring the largest cut to
-Creative Commons. The English Edition sold 80 copies so far, the
-French 59 copies, and Norwegian only 8 copies. Nothing impressive,
-but nice to see the work we put down is still being appreciated. The
-ebook edition is available for free from
-<a href="https://github.com/petterreinholdtsen/free-culture-lessig">Github</a>.</p>
-
-<table border="0">
-<tr><th rowspan="2" valign="bottom">Title / language</th>
-<th colspan="7">Quantity</th></tr>
-<tr>
-<th>2016 jan-jun</th>
-<th>2016 jul-dec</th>
-<th>2017 jan-jun</th>
-<th>2017 jul-dec</th>
-<th>2018 jan-jun</th>
-<th>2018 jul-dec</th>
-<th>2019 jan-may</th>
-</tr>
-
-<tr>
- <td><a href="http://www.lulu.com/shop/lawrence-lessig/culture-libre/paperback/product-22645082.html">Culture Libre / French</a></td>
- <td align="right">3</td>
- <td align="right">6</td>
- <td align="right">19</td>
- <td align="right">11</td>
- <td align="right">7</td>
- <td align="right">6</td>
- <td align="right">7</td>
-</tr>
-
-<tr>
- <td><a href="http://www.lulu.com/shop/lawrence-lessig/fri-kultur/paperback/product-22441576.html">Fri kultur / Norwegian</a></td>
- <td align="right">7</td>
- <td align="right">1</td>
- <td align="right">0</td>
- <td align="right">0</td>
- <td align="right">0</td>
- <td align="right">0</td>
- <td align="right">0</td>
-</tr>
-
-<tr>
- <td><a href="http://www.lulu.com/shop/lawrence-lessig/free-culture/paperback/product-22440520.html">Free Culture / English</a></td>
- <td align="right">14</td>
- <td align="right">27</td>
- <td align="right">16</td>
- <td align="right">9</td>
- <td align="right">3</td>
- <td align="right">7</td>
- <td align="right">3</td>
-</tr>
-
-<tr>
- <td>Total</td>
- <td align="right">24</td>
- <td align="right">34</td>
- <td align="right">35</td>
- <td align="right">20</td>
- <td align="right">10</td>
- <td align="right">13</td>
- <td align="right">10</td>
-</tr>
-
-</table>
-
-<p>It is fun to see the French edition being more popular than the
-English one.</p>
-
-<p>If you would like to translate and publish the book in your native
-language, I would be happy to help make it happen. Please get in
-touch.</p>
-</description>
- </item>
-
- <item>
- <title>Official MIME type "text/vnd.sosi" for SOSI map data</title>
- <link>http://people.skolelinux.org/pere/blog/Official_MIME_type__text_vnd_sosi__for_SOSI_map_data.html</link>
- <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/Official_MIME_type__text_vnd_sosi__for_SOSI_map_data.html</guid>
- <pubDate>Tue, 4 Jun 2019 09:20:00 +0200</pubDate>
- <description><p>Just 15 days ago,
-<ahref="http://people.skolelinux.org/pere/blog/MIME_type__text_vnd_sosi__for_SOSI_map_data.html">I
-mentioned</a> my submission to IANA to register an official MIME type
-for the SOSI vector map format. This morning, just an hour ago, I was
-notified that
-<a href="https://www.iana.org/assignments/media-types/text/vnd.sosi">the
-MIME type "text/vnd.sosi"</a> is registered for this format. In
-addition to this registration, my
-<a href="https://github.com/file/file/blob/master/magic/Magdir/sosi">file(1)
-patch for a pattern matching rule for SOSI files</a> has been accepted
-into the official source of that program (pending a new release), and
-I've been told by the team behind
-<a href="https://www.nationalarchives.gov.uk/PRONOM/">PRONOM</a> that
-the SOSI format will be included in the next release of PRONOM, which
-they plan to release this summer around July.</p>
-
-<p>I am very happy to see all of this fall into place, for use by
-<a href="https://github.com/arkivverket/noark5-tjenestegrensesnitt-standard/">the
-Noark 5 Tjenestegrensesnitt</a> implementations.</p>
-
-<p>As usual, if you use Bitcoin and want to show your support of my
-activities, please send Bitcoin donations to my address
-<b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
-</description>
- </item>
-
- <item>
- <title>The space rover coquine, or how I ended up on the dark side of the moon</title>
- <link>http://people.skolelinux.org/pere/blog/The_space_rover_coquine__or_how_I_ended_up_on_the_dark_side_of_the_moon.html</link>
- <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/The_space_rover_coquine__or_how_I_ended_up_on_the_dark_side_of_the_moon.html</guid>
- <pubDate>Sun, 2 Jun 2019 23:55:00 +0200</pubDate>
- <description><p>A while back a college and friend from Debian and the Skolelinux /
-Debian Edu project approached me, asking if I knew someone that might
-be interested in helping out with a technology project he was running
-as a teacher at <a href="https://www.ecolefrancodanoise.dk/">L'école
-franco-danoise</a> - the Danish-French school and kindergarden. The
-kids were building robots, rovers. The story behind it is to build a
-rover for use
-<a href="http://blog.ecolefrancodanoise.dk/first-week-on-the-dark-side">on
-the dark side of the moon</a>, and remote control it. As travel cost
-was a bit high for the final destination, and they wanted to test the
-concept first, he was looking for volunteers to host a rover for the
-kids to control in a foreign country. I ended up volunteering as a
-host, and last week the rover arrived. It took a while to arrive
-after <a href="http://blog.ecolefrancodanoise.dk/model-moms">it was
-built and shipped</a>, because of customs confusion. Luckily we were
-able fix it quickly with help from my colleges at work.</p>
-
-<p>This is what it looked like when the rover arrived. Note the cute
-eyes looking up on me from the wrapping</p>
-
-<img src="http://people.skolelinux.org/pere/blog/images/2019-06-02-robot-dark-side-of-moon-esken-med-det-rare-i.jpeg" width="32%" style="clear:left"/>
-<img src="http://people.skolelinux.org/pere/blog/images/2019-06-02-robot-dark-side-of-moon-den-ser-meg.jpeg" width="32%" style="clear:left"/>
-<img src="http://people.skolelinux.org/pere/blog/images/2019-06-02-robot-dark-side-of-moon-en-skrue-loes.jpeg" width="32%" style="clear:left"/>
-
-<p style="text-align:left">Once the robot arrived, we needed to track
-down batteries and figure out how to build custom firmware for it with
-the appropriate wifi settings. I asked a friend if I could get two
-18650 batteries from his pile of Tesla batteries (he had them from the
-wrack of a crashed Tesla), so now the rover is running on Tesla
-batteries.</p>
-
-<p>Building
-<a href="https://gitlab.com/ecolefrancodanoise/arduino-efd/">the rover
-firmware</a> proved a bit harder, as the code did not work out of the
-box with the Arduino IDE package in Debian Buster. I suspect this is
-due to a unsolved
-<a href="https://github.com/arduino/Arduino/pull/2703"> license problem
-with arduino</a> blocking Debian from upgrading to the latest version.
-In the end we gave up debugging why the IDE failed to find the
-required libraries, and ended up using the Arduino Makefile from the
-<a href="https://tracker.debian.org/pkg/arduino-mk">arduino-mk Debian
-package</a> instead. Unfortunately the camera library is missing from
-the Arduino environment in Debian, so we disabled the camera support
-for the first firmware build, to get something up and running. With
-this reduced firmware, the robot could be controlled via the
-controller server, driving around and measuring distance using its
-internal acoustic sensor.</p>
-
-<p>Next, With some help from my friend in Denmark, which checked in the
-camera library into the gitlab repository for me to use, we were able
-to build a new and more complete version of the firmware, and the
-robot is now up and running. This is what the "commander" web page
-look like after taking a measurement and a snapshot:</p>
-
-<img src="http://people.skolelinux.org/pere/blog/images/2019-06-02-robot-dark-side-of-moon-commander.png" width="40%" border="1" align="center"/>
-
-<p>If you want to learn more about this project, you can check out the
-<a href="https://hackaday.io/project/164082-the-dark-side-challenge">The
-Dark Side Challenge</a> Hackaday web pages.</p>
-
-<p>As usual, if you use Bitcoin and want to show your support of my
-activities, please send Bitcoin donations to my address
-<b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
-</description>
- </item>
-
- <item>
- <title>Nikita version 0.4 released - free software archive API server</title>
- <link>http://people.skolelinux.org/pere/blog/Nikita_version_0_4_released___free_software_archive_API_server.html</link>
- <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/Nikita_version_0_4_released___free_software_archive_API_server.html</guid>
- <pubDate>Wed, 22 May 2019 11:30:00 +0200</pubDate>
- <description><p>This morning, a new release of
-<a href="https://gitlab.com/OsloMet-ABI/nikita-noark5-core/">Nikita
-Noark 5 core project</a> was
-<a href="https://lists.nuug.no/pipermail/nikita-noark/2019-May/000468.html">announced
-on the project mailing list</a>. The Nikita free software solution is
-an implementation of the Norwegian archive standard Noark 5 used by
-government offices in Norway. These were the changes in version 0.4
-since version 0.3, see the email link above for links to a demo site:</p>
-
-<ul>
-
- <li>Roll out OData handling to all endpoints where applicable</li>
- <li>Changed the relation key for "ny-journalpost" to the official one.</li>
- <li>Better link generation on outgoing links.</li>
- <li>Tidy up code and make code and approaches more consistent throughout
- the codebase</li>
- <li>Update rels to be in compliance with updated version in the
- interface standard</li>
- <li>Avoid printing links on empty objects as they can't have links</li>
- <li>Small bug fixes and improvements</li>
- <li>Start moving generation of outgoing links to @Service layer so access
- control can be used when generating links</li>
- <li>Log exception that was being swallowed so it's traceable</li>
- <li>Fix name mapping problem</li>
- <li>Update templated printing so templated should only be printed if it
- is set true. Requires more work to roll out across entire
- application.</li>
- <li>Remove Record->DocumentObject as per domain model of n5v4</li>
- <li>Add ability to delete lists filtered with OData</li>
- <li>Return NO_CONTENT (204) on delete as per interface standard</li>
- <li>Introduce support for ConstraintViolationException exception</li>
- <li>Make Service classes extend NoarkService</li>
- <li>Make code base respect X-Forwarded-Host, X-Forwarded-Proto and
- X-Forwarded-Port</li>
- <li>Update CorrespondencePart* code to be more in line with Single
- Responsibility Principle</li>
- <li>Make package name follow directory structure</li>
- <li>Make sure Document number starts at 1, not 0</li>
- <li>Fix isues discovered by FindBugs</li>
- <li>Update from Date to ZonedDateTime</li>
- <li>Fix wrong tablename</li>
- <li>Introduce Service layer tests</li>
- <li>Improvements to CorrespondencePart</li>
- <li>Continued work on Class / Classificationsystem</li>
- <li>Fix feature where authors were stored as storageLocations</li>
- <li>Update HQL builder for OData</li>
- <li>Update OData search capability from webpage</li>
-
-</ul>
-
-<p>If free and open standardized archiving API sound interesting to
-you, please contact us on IRC
-(<a href="irc://irc.freenode.net/%23nikita">#nikita on
-irc.freenode.net</a>) or email
-(<a href="https://lists.nuug.no/mailman/listinfo/nikita-noark">nikita-noark
-mailing list</a>).</p>
-
-<p>As usual, if you use Bitcoin and want to show your support of my
-activities, please send Bitcoin donations to my address
-<b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
-</description>
- </item>
-
- <item>
- <title>MIME type "text/vnd.sosi" for SOSI map data</title>
- <link>http://people.skolelinux.org/pere/blog/MIME_type__text_vnd_sosi__for_SOSI_map_data.html</link>
- <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/MIME_type__text_vnd_sosi__for_SOSI_map_data.html</guid>
- <pubDate>Mon, 20 May 2019 08:35:00 +0200</pubDate>
- <description><p>As part of my involvement in the work to
-<a href="https://github.com/arkivverket/noark5-tjenestegrensesnitt-standard">standardise
-a REST based API for Noark 5</a>, the Norwegian archiving standard, I
-spent some time the last few months to try to register a
-<a href="https://www.iana.org/assignments/media-types/">MIME type</a>
-and <a href="https://www.nationalarchives.gov.uk/PRONOM/">PRONOM
-code</a> for the SOSI file format. The background is that there is a
-set of formats approved for long term storage and archiving in Norway,
-and among these formats, SOSI is the only format missing a MIME type
-and PRONOM code.</p>
-
-<p>What is SOSI, you might ask? To quote Wikipedia: SOSI is short for
-Samordnet Opplegg for Stedfestet Informasjon (literally "Coordinated
-Approach for Spatial Information", but more commonly expanded in
-English to Systematic Organization of Spatial Information). It is a
-text based file format for geo-spatial vector information used in
-Norway. Information about the SOSI format can be found in English
-from <a href="https://en.wikipedia.org/wiki/SOSI">Wikipedia</a>. The
-specification is available in Norwegian from
-<a href="https://www.kartverket.no/geodataarbeid/Standarder/SOSI/">the
-Norwegian mapping authority</a>. The SOSI standard, which originated
-in the beginning of nineteen eighties, was the inspiration and formed the
-basis for the XML based
-<a href="https://en.wikipedia.org/wiki/Geography_Markup_Language">Geography
-Markup Language</a>.</p>
-
-<p>I have so far written
-<a href="https://github.com/file/file/pull/67">a pattern matching
-rule</a> for the file(1) unix tool to recognize SOSI files, submitted
-a request to the PRONOM project to have a PRONOM ID assigned to the
-format (reference TNA1555078202S60), and today send a request to IANA
-to register the "text/vnd.sosi" MIME type for this format (referanse
-<a href="https://tools.iana.org/public-view/viewticket/1143144">IANA
-#1143144</a>). If all goes well, in a few months, anyone implementing
-the Noark 5 Tjenestegrensesnitt API spesification should be able to
-use an official MIME type and PRONOM code for SOSI files. In
-addition, anyone using SOSI files on Linux should be able to
-automatically recognise the format and web sites handing out SOSI
-files can begin providing a more specific MIME type. So far, SOSI
-files has been handed out from web sites using the
-"application/octet-stream" MIME type, which is just a nice way of
-stating "I do not know". Soon, we will know. :)</p>
-
-<p>As usual, if you use Bitcoin and want to show your support of my
-activities, please send Bitcoin donations to my address
-<b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
-</description>
- </item>
-
- <item>
- <title>PlantUML for text based UML diagram modelling - nice free software</title>
- <link>http://people.skolelinux.org/pere/blog/PlantUML_for_text_based_UML_diagram_modelling___nice_free_software.html</link>
- <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/PlantUML_for_text_based_UML_diagram_modelling___nice_free_software.html</guid>
- <pubDate>Mon, 25 Mar 2019 09:35:00 +0100</pubDate>
- <description><p>As part of my involvement with the
-<a href="https://gitlab.com/OsloMet-ABI/nikita-noark5-core/">Nikita
-Noark 5 core project</a>, I have been proposing improvements to the
-API specification created by <a href="https://www.arkivverket.no/">The
-National Archives of Norway</a> and helped migrating the text from a
-version control system unfriendly binary format (docx) to Markdown in
-git. Combined with the migration to a public git repository (on
-github), this has made it possible for anyone to suggest improvement
-to the text.</p>
-
-<p>The specification is filled with UML diagrams. I believe the
-original diagrams were modelled using Sparx Systems Enterprise
-Architect, and exported as EMF files for import into docx. This
-approach make it very hard to track changes using a version control
-system. To improve the situation I have been looking for a good text
-based UML format with associated command line free software tools on
-Linux and Windows, to allow anyone to send in corrections to the UML
-diagrams in the specification. The tool must be text based to work
-with git, and command line to be able to run it automatically to
-generate the diagram images. Finally, it must be free software to
-allow anyone, even those that can not accept a non-free software
-license, to contribute.</p>
-
-<p>I did not know much about free software UML modelling tools when I
-started. I have used dia and inkscape for simple modelling in the
-past, but neither are available on Windows, as far as I could tell. I
-came across a nice
-<a href="https://modeling-languages.com/text-uml-tools-complete-list/">list
-of text mode uml tools</a>, and tested out a few of the tools listed
-there. <a href="http://plantuml.com/">The PlantUML tool</a> seemed
-most promising. After verifying that the packages
-<a href="https://tracker.debian.org/pkg/plantuml">is available in
-Debian</a> and found <a href="https://github.com/plantuml/plantuml">its
-Java source</a> under a GPL license on github, I set out to test if it
-could represent the diagrams we needed, ie the ones currently in
-<a href="https://github.com/arkivverket/noark5-tjenestegrensesnitt-standard/">the
-Noark 5 Tjenestegrensesnitt specification</a>. I am happy to report
-that it could represent them, even thought it have a few warts here
-and there.</p>
-
-<p>After a few days of modelling I completed the task this weekend. A
-temporary link to the complete set of diagrams (original and from
-PlantUML) is available in
-<a href="https://github.com/arkivverket/noark5-tjenestegrensesnitt-standard/issues/76">the
-github issue discussing the need for a text based UML format</a>, but
-please note I lack a sensible tool to convert EMF files to PNGs, so
-the "original" rendering is not as good as the original was in the
-publised PDF.</p>
-
-<p>Here is an example UML diagram, showing the core classes for
-keeping metadata about archived documents:</p>
-
-<pre>
-@startuml
-skinparam classAttributeIconSize 0
-
-!include media/uml-class-arkivskaper.iuml
-!include media/uml-class-arkiv.iuml
-!include media/uml-class-klassifikasjonssystem.iuml
-!include media/uml-class-klasse.iuml
-!include media/uml-class-arkivdel.iuml
-!include media/uml-class-mappe.iuml
-!include media/uml-class-merknad.iuml
-!include media/uml-class-registrering.iuml
-!include media/uml-class-basisregistrering.iuml
-!include media/uml-class-dokumentbeskrivelse.iuml
-!include media/uml-class-dokumentobjekt.iuml
-!include media/uml-class-konvertering.iuml
-!include media/uml-datatype-elektronisksignatur.iuml
-
-Arkivstruktur.Arkivskaper "+arkivskaper 1..*" <-o "+arkiv 0..*" Arkivstruktur.Arkiv
-Arkivstruktur.Arkiv o--> "+underarkiv 0..*" Arkivstruktur.Arkiv
-Arkivstruktur.Arkiv "+arkiv 1" o--> "+arkivdel 0..*" Arkivstruktur.Arkivdel
-Arkivstruktur.Klassifikasjonssystem "+klassifikasjonssystem [0..1]" <--o "+arkivdel 1..*" Arkivstruktur.Arkivdel
-Arkivstruktur.Klassifikasjonssystem "+klassifikasjonssystem [0..1]" o--> "+klasse 0..*" Arkivstruktur.Klasse
-Arkivstruktur.Arkivdel "+arkivdel 0..1" o--> "+mappe 0..*" Arkivstruktur.Mappe
-Arkivstruktur.Arkivdel "+arkivdel 0..1" o--> "+registrering 0..*" Arkivstruktur.Registrering
-Arkivstruktur.Klasse "+klasse 0..1" o--> "+mappe 0..*" Arkivstruktur.Mappe
-Arkivstruktur.Klasse "+klasse 0..1" o--> "+registrering 0..*" Arkivstruktur.Registrering
-Arkivstruktur.Mappe --> "+undermappe 0..*" Arkivstruktur.Mappe
-Arkivstruktur.Mappe "+mappe 0..1" o--> "+registrering 0..*" Arkivstruktur.Registrering
-Arkivstruktur.Merknad "+merknad 0..*" <--* Arkivstruktur.Mappe
-Arkivstruktur.Merknad "+merknad 0..*" <--* Arkivstruktur.Dokumentbeskrivelse
-Arkivstruktur.Basisregistrering -|> Arkivstruktur.Registrering
-Arkivstruktur.Merknad "+merknad 0..*" <--* Arkivstruktur.Basisregistrering
-Arkivstruktur.Registrering "+registrering 1..*" o--> "+dokumentbeskrivelse 0..*" Arkivstruktur.Dokumentbeskrivelse
-Arkivstruktur.Dokumentbeskrivelse "+dokumentbeskrivelse 1" o-> "+dokumentobjekt 0..*" Arkivstruktur.Dokumentobjekt
-Arkivstruktur.Dokumentobjekt *-> "+konvertering 0..*" Arkivstruktur.Konvertering
-Arkivstruktur.ElektroniskSignatur -[hidden]-> Arkivstruktur.Dokumentobjekt
-@enduml
-</pre>
-
-<p><a href="http://plantuml.com/class-diagram">The format</a> is quite
-compact, with little redundant information. The text expresses
-entities and relations, and there is little layout related fluff. One
-can reuse content by using include files, allowing for consistent
-naming across several diagrams. The include files can be standalone
-PlantUML too. Here is the content of
-<tt>media/uml-class-arkivskaper.iuml<tt>:</p>
-
-<pre>
-@startuml
-class Arkivstruktur.Arkivskaper <Arkivenhet> {
- +arkivskaperID : string
- +arkivskaperNavn : string
- +beskrivelse : string [0..1]
-}
-@enduml
-</pre>
-
-<p>This is what the complete diagram for the PlantUML notation above
-look like:</p>
-
-<p><img width="80%" src="http://people.skolelinux.org/pere/blog/images/2019-03-25-noark5-plantuml-diagrameksempel.png"></p>
-
-<p>A cool feature of PlantUML is that the generated PNG files include
-the entire original source diagram as text. The source (with include
-statements expanded) can be extracted using for example
-<tt>exiftool</tt>. Another cool feature is that parts of the entities
-can be hidden after inclusion. This allow to use include files with
-all attributes listed, even for UML diagrams that should not list any
-attributes.</p>
-
-<p>The diagram also show some of the warts. Some times the layout
-engine place text labels on top of each other, and some times it place
-the class boxes too close to each other, not leaving room for the
-labels on the relationship arrows. The former can be worked around by
-placing extra newlines in the labes (ie "\n"). I did not do it here
-to be able to demonstrate the issue. I have not found a good way
-around the latter, so I normally try to reduce the problem by changing
-from vertical to horizontal links to improve the layout.</p>
-
-<p>All in all, I am quite happy with PlantUML, and very impressed with
-how quickly its lead developer responds to questions. So far I got an
-answer to my questions in a few hours when I send an email. I
-definitely recommend looking at PlantUML if you need to make UML
-diagrams. Note, PlantUML can draw a lot more than class relations.
-Check out the documention for a complete list. :)</p>
-
-<p>As usual, if you use Bitcoin and want to show your support of my
-activities, please send Bitcoin donations to my address
-<b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
-</description>
- </item>
-
</channel>
</rss>
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