ppy/oor-hack-02_chat-transcript_unedited_20130716a.txt ------ Chat transcript from room: oor_20130716 2013-07-16 GMT-08:00 [PDT] ------ [6:59] PeterYim: Welcome to the = OOR "Hackathon" Session (n.02) - Tue 2013_07_16 = * Session Topic: The "OOR-Ontohub-Gatekeeper API - II" Hackathon * Session Co-chairs: KenBaclawski & TillMossakowski * session page: http://ontolog.cim3.net/cgi-bin/wiki.pl?OOR/ConferenceCall_2013_07_16 . == Proceedings == . [7:02] PeterYim: Till: ref. http://ontolog.cim3.net/cgi-bin/wiki.pl?OOR/ConferenceCall_2013_07_16#nid3VKT - https://github.com/ontohub/ontohub/blob/specifying179_formalizing_ontology_repository_service/api/ontology.idl [7:03] anonymous morphed into AleksandraSojic [7:07] KenBaclawski: My GitHub name is baclawski. [7:09] TillMossakowski: we will set up a new github repository, only for the API [7:11] ToddSchneider: What happened to the use of instances of the metadata ontology as the function parameter? [7:13] KenBaclawski: The idlj compiler converts from IDL to Java. It is a standard tool in any Java Development Kit (jdk) so if you have Java installed you should also have idlj. [7:14] PeterYim: ^[action] - [7:09] TillMossakowski: we will set up a new github repository, only for the API [7:15] KenBaclawski: The idlj compiler is handy for checking the IDL syntax. I used idlj to convert an IDL to Java, and then it is relatively easy to convert to WSDL. [7:15] PeterYim: when this OOR-API github instance is up, please subcribe me too - my github username is "yimpp" [7:15] PeterYim: ^ subscribe [7:23] TillMossakowski: new repository at https://github.com/ontohub/OOR_Ontohub_API [7:30] ToddSchneider: The API for 'selecting' is effectively a query mechanism, the front end to the user. The other side of this is the 'retrieving' of the requested or queried data. For the front end of selecting or querying for ontologies (or metadata about them) use of an instance of the metadata ontology should be used as the single parameter for the 'select' method. The particular parameters of interest would be represented by non-null values (in the ontology instance). This simplifies the API and overall architecture (but moves complexity to the parsing of the ontology instance). The retrieval (or return values) of the 'selected' results would make use of federate identifiers. [7:33] KenBaclawski: I have posted the Gatekeeper API in gatekeeper.idl. This is accepted by idlj. [7:35] TillMossakowski: @Todd: the single parameter should be a struct [7:37] ToddSchneider: Had to answer another call. I'll be back shortly. [7:39] TillMossakowski: add-on to Todd's message: the user should be able to select whether the method call should just deliver ids (compact representation) or all the metadata (say, as an XML tree), or even the whole ontology/ies (can become very large) [7:42] ToddSchneider: Till, good point about a parameter to specify return value(s). [7:42] TillMossakowski: IDL methods are synchronous by default. If the execution of a method takes very long, it should be made asynchronous (keyword: oneway). [7:43] ToddSchneider: I'm back. [7:44] PeterYim: Till+Ken: now online at github: OOR_Ontohub API - https://github.com/ontohub/OOR_Ontohub_API/blob/master/ontology.idl ... and ... OOR_Gatekeeper API - https://github.com/ontohub/OOR_Ontohub_API/blob/master/gatekeeper.idl [7:47] TillMossakowski: Daniel will work on a new iteration of the API, and test it with idlj. He will also integrate the gatekeeper API as a module. Once this iteration is there, Daniel will send a mail, and others can contribute through github. [7:47] PeterYim: [consensus] we will leave these two API's as separate modules [7:48] PeterYim: (for the lower level development work) we should use the [oor-dev] mailing list [7:48] Daniel Couto Vale: my e-mail is danielvale [at] uni-bremen.de [7:49] PeterYim: I will subscribe everyone present at today's session to the [oor-dev] list (in case he/she isn't yet) [7:49] PeterYim: ^[action] ... done! [7:50] List of members: AleksandraSojic, Daniel Couto Vale, KenBaclawski, MikeBennett, OliverKutz, PeterYim, TillMossakowski, ToddSchneider [7:53] KenBaclawski: Another source of ontology classification (or perhaps properties of an ontology) is the Ontology Summit 2007 http://ontolog.cim3.net/cgi-bin/wiki.pl?OntologySummit2007 [7:57] TillMossakowski: United Nations Standard Products and Services Code: http://www.unspsc.org/ [8:01] TillMossakowski: we just need to start with the "upper level" of the classification. People can later add finer distinctions. The classification system should be itself an OWL ontology, hosted at OOR/Ontohub. [8:03] PeterYim: @Ken - UNSPSC codeset can be downloaded at: http://www.unspsc.org/codeset-downloads [8:04] ToddSchneider: Sorry; Have to go. Thank you. [8:06] MikeBennett: Prescriptive v Descriptive ontologies [8:07] TillMossakowski: follow up to Ken/2007 summit: ontologies may be classified as descriptive or prescriptive [8:07] MikeBennett: (that is extensional v intensional definitions in the ontology) [8:07] TillMossakowski: see http://ontolog.cim3.net/cgi-bin/wiki.pl?OntologySummit2007_Communique [8:08] KenBaclawski: The Ontology Summit 2007 Communique is at http://ontolog.cim3.net/cgi-bin/wiki.pl?OntologySummit2007_Communique [8:11] PeterYim: upcoming meetings: OOR-hackathon n.03 - Tue Jul-30 ... break in Aug-2013 ... OOR-hackathon n.04 - Tue Sep-10 [8:11] PeterYim: we will use the second Tuesday of each month for the OOR-hackathon activities [8:11] PeterYim: same regular start-time: 7:00am PDT / 10:00am EDT / 4:00pm CEST / 3:00pm BST / 1400 UTC [8:12] PeterYim: great session ... covered a lot of grounds! [8:12] PeterYim: -- session ended: 8:11am PDT -- [8:12] List of attendees: AleksandraSojic, Daniel Couto Vale, KenBaclawski, MikeBennett, OliverKutz, PeterYim, TillMossakowski, ToddSchneider.