Quang Vu DANG. Computer Science Department Institut Telecom SudParis

Transcription

1 Visualizing contributions in a forge Case study on PicoForge Quang Vu DANG Computer Science Department Institut Telecom SudParis

2 Plan Introduction Semantic Web standards Visualizing contributions in a forge Case study on PicoForge Page 2

3 Plan Introduction Context and Objectives of the PhD thesis Data public analysis tools Semantic Web standards Visualizing contributions in a forge Case study on PicoForge Page 3

4 Context of the PhD thesis OSS Software Collaboration Development Environment(Forge) Provide collaborative tools: Source versioning, Mailing list, Wiki, Bug tracker, forum, chat... Missing tools at second level Give current vision of project Take complete vision about the process of production Predict the evolution of project and community Page 4

5 Objective of the PhD thesis Measuring software quality by qualimetric of process Find metrics to measure quality of the process Find relationship between the quality of the product and the quality of the process Develop a Supervision Tool in a forge Help to improve community awareness Provide indicator for analysis of process/product quality Page 5

6 Data public analysis tools Data public svn bug... svn bug... Tools Results CVSAnaly MailingListStats SLOCCount... [ Retrieval_System_Design.pdf] Page 6

7 Plan Introduction Semantic Web standards What Is RDF? RSS Friend Of A Friend(FOAF) Description Of A Project(DOAP) Visualizing contributions in a forge Case study on PicoForge Page 7

8 What Is RDF? Resource Description Framework RDF Graph: a set of RDF Triples RDF Triples: a 3 tuple: (Subject, Predicate, Object) XML format using predefined vocabularies General Standards Dublin Core(DC) RDF RDFS etc Page 8

9 RDF Model Example <?xml version="1.0"?> <rdf:rdf xmlns:rdf=" rdf syntax ns#" xmlns:dc=" xmlns:ex=" <rdf:description rdf:about=" syntax grammar" dc:title="rdf/xml Syntax Specification (Revised)"> <ex:editor> <rdf:description ex:fullname="dave Beckett"> <ex:homepage rdf:resource=" </rdf:description> </ex:editor> </rdf:description> </rdf:rdf> Page 9

10 RDF Model Example syntax grammar RDF/XML Syntax Specification (Revised) Page 10 Dave Beckett

11 Reusable Page 11

12 RSS RSS: Web content syndication format(really Simple Syndication) channel: title, description, link,... item: title, description, link, pubdate, author... RSS 1.0: RDF Site Summary Extensible with other RDF standards Simple: Plain XML Extensible: RDF/XML Page Atom

13 Friend Of A Friend(FOAF) XML/RDF Schema to describe people and the relationships between them and the things they create and do FOAF Basic foaf:name, foaf:nick, foaf:mbox,... Personal Information foaf:knows, foaf:currentproject, foaf:publications, foaf:topic_interest,... [ Page 13

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16 [ consult.dk/foaf/explorer/] Page 16

17 Description Of A Project(DOAP) XML/RDF schema to describe software projects and in particular open source projects. Vocabulary name, homepage, description, created,mailing list... developer, maintainer, translator... repository, bug database, screenshots, release/version... [ DOAP stores and Page 17

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20 Plan Introduction Semantic Web standards Visualizing contributions in a forge Data collection approach Data analysis Case study on PicoForge Page 20

21 Data collection approach Extract and standardize semantical data from collaborative tools Forge's tools provide RSS feeds to track activity A RSS item is the result of an action Enrich information in the RSS/RDF using FOAF, DOAP, DC, etc. Collect all RSS feeds of project Page 21

22 Data collection approach Advantages Live information Across tools, across platform => Real time and complete vision about project and community Using Semantic Web standard => Publish semantic notifications of project activity Page 22

23 RSS Example <rss:channel> <rss:title>projeta</rss:title> <rss:description> WebSVN RSS feed projeta </rss:description> <rss:link> <doap:project> <doap:name>projeta</doap:name> <rdfs:seealso> </rdfs:seealso> </doap:project> </rss:channel> Page 23

24 RSS Example <rss:item> <rss:title>minor fixes in version 2 branch </rss:title> <rss:link> <rss:description>rev 2463 toto (3 file(s) modified) minor fixes in version 2 branch</rss:description> <foaf:person> <foaf:nick>toto</foaf:nick> <foaf:mbox>toto@projeta.org</foaf:mbox> <rdfs:seealso> </rdfs:seealso> </foaf:person> <dc:date>mon, 02 Jun :18: </dc:date> </rss:item> Page 24

25 Data analysis Metrics The total number of actions Number of active members with the number of actions of each members Number of used tools with numbers of actions in each tool Constructing Social Network Heterogeneous relationships: co commit on SVN, co drafting on Wiki or discussion on mailing list, bug tracker Activity Pattern Analysis monthly activity, daily activity, hourly activity Page 25

26 Plan Introduction Semantic Web standards Visualizing contributions in a forge Case study on PicoForge PicoForge platform Supervision tool in PicoForge First results Page 26

27 PicoForge platform Web based collaborative work platform GNU GPL license Built on top mature libre softwares: PhpGroupware, LDAP, MySQL... Integration of several collaboration tools Twiki, Sympa, CVS, Subversion, WebSVN, Mantis Typical use Projects / work groups hosting Ad hoc project creation Page 27 [

28 Supervision tool on PicoForge TWiki Sympa WebSVN Mantis Directory LDAP Portal Project Public feeds Semantic DataBase Supervision module RDF Document RSS Document FOAF Document DOAP Document Page 28

29 Supervision tool on PicoForge Implementation RSS_PHP [ RSS/XML parser using DOMDocument RAP [ berlin.de/bizer/rdfapi/] RDF API for PHP parse, store, query, manipulate, serialize and serve RDF LibChart [ a PHP library to create charts such as Bar charts (horizontal or vertical), Line charts, Pie charts TouchGraph [ visualization of graphs such as social networks Page 29

30 First results Page 30

31 First results Page 31

32 Merci de votre attention! Question? Page 32