Inclusive Social Tagging


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Presentation at 1st World Summit on the Knowledge Society, Athens, Greece, Sept 2008

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  • Inclusive Social Tagging

    1. 1. Inclusive Social Tagging A Paradigm for Tagging-Services in the Knowledge Society Michael Derntl, Thorsten Hampel, Renate Motschnig, Tom Pitner Universities of Vienna, Paderborn, and Brno [email_address] WSKS 2008 September 25, 2008 – Athens, Greece
    2. 3. Overview <ul><li>Semantic data organization and tagging </li></ul><ul><li>Inclusive Universal Access and social tagging  Inclusive Social Tagging </li></ul><ul><li>Analysis of current Web 2.0 services </li></ul>
    3. 4. Tagging
    4. 5. Tagging <ul><li>Bringing order to things – organize, search, find </li></ul>Object tag
    5. 6. Social tagging, folksonomy … … … “ tag cloud”
    6. 7. Data organization metadata initiatives coordinated metadata repositories & registries domain ontology taxonomy thesaurus conceptual meta-model logic theory for domain semantics social tagging categories stereotypes formal metadata, standards initial fully developed informal formal weak semantics strong semantics development structured
    7. 8. Universal accessibility <ul><li>A product or service is universally accessible, if it can be used by persons regardless of their capabilities, skills, and characteristics. </li></ul><ul><ul><li> high quality of interaction; availability to anywhere, anytime; Life cycle -- requirements, analysis, design (recent) </li></ul></ul><ul><li>Inclusive Universal Access extension with non technology aspects </li></ul><ul><ul><li>Inclusion : all people on all levels (intellectual, social, personal…); user involvement in all product/service lifecycle phases </li></ul></ul><ul><ul><li>Adaptability : usage scenarios flexible to adapt to user requirements, behavior, … </li></ul></ul><ul><ul><li>Usability : use case focused, smooth experience; guidelines compliance (eg WCAG), privacy, security, reliability </li></ul></ul>
    8. 9. Metadata vs. social tagging <ul><li>Inclusiveness: </li></ul>Not inclusive Entry barriers Inclusive Inclusive <ul><li>All potential users (usually registration required) </li></ul><ul><li>Important use case for all users </li></ul><ul><li>No restrictions on tag number / meaning </li></ul><ul><li>Decentral cooperation and coordination </li></ul>Social tagging <ul><li>All potential users </li></ul><ul><li>Typical: strict guidelines and rules, </li></ul><ul><li>Assumptions about the domain </li></ul><ul><li>Effort required by first-time users. </li></ul><ul><li>Restricted to a closed circle of persons, committees, and organizations </li></ul>Metadata Inclusiveness of usage Inclusiveness of creation
    9. 10. Metadata vs. social tagging <ul><li>Adaptability: </li></ul>Provider effort User effort Adaptable Adaptable <ul><li>Easy adding, editing, retrieval, querying </li></ul><ul><li>Sometimes restricted to creator </li></ul><ul><li>Core element of social tagging </li></ul><ul><li>No restricted dictionary </li></ul><ul><li>Extension and adaptation are “natural” use cases </li></ul>Social tagging <ul><li>Constrained by rules and guidelines </li></ul><ul><li>Requires research on extension mechanisms </li></ul><ul><li>Can be adapted to changing requirements </li></ul><ul><li>Effort may be significant (bureaucratic control mechanisms) </li></ul><ul><li>Might break existing applications </li></ul>Metadata Adaptability of usage Adaptability of creation
    10. 11. Metadata vs. social tagging <ul><li>Usability: </li></ul>Depends on tools Depends on tools Depends on tools High usability <ul><li>Most important use case  particular caution for usability in tagging services </li></ul><ul><li>Mostly implemented as Web 2.0 services resembling desktop experience </li></ul><ul><li>Enabled through provided software service </li></ul><ul><li>Conceptually simple task, however dependent on software quality </li></ul>Social tagging <ul><li>Depends heavily on quality of tools and documentation provided. </li></ul><ul><li>Assumptions, rules and restrictions in the underlying domain model </li></ul>Metadata Usability of usage Usability of creation
    11. 12. Principles of IST <ul><ul><li>Decentral responsibility, </li></ul></ul><ul><ul><li>Active participation, </li></ul></ul><ul><ul><li>Interpersonal exchange, </li></ul></ul><ul><ul><li>Person centeredness, </li></ul></ul><ul><ul><li>Universal accessibility </li></ul></ul>Depends on tools Not inclusive Entry barriers Provider effort User effort Depends on tools Inclusive Adaptable High usability
    12. 13. Analysis of Web 2.0 Services <ul><li>Inclusion: client devices </li></ul><ul><ul><li>Desktop PC </li></ul></ul><ul><ul><li>PDA Glofiish X800 w/ Opera Mini </li></ul></ul><ul><ul><li>Mobile SonyEricsson K700i w/ Java, Opera Mini </li></ul></ul>read only OK OK display & fct problems OK SlideShare OK, some display problems OK MySpace OK, simple UI OK Google Docs no OK GMail + GTalk read only OK Flickr OK, display problems OK Blogger read only OK Backpack no Flash req’d Adobe Share Mobile PDA Desktop
    13. 14. Analysis of Web 2.0 Services <ul><li>Adaptability: adapting to user requirements, extensibility, integration-ready </li></ul>forbidden limited -- human-like only forbidden REST SlideShare forbidden w/ permission -- MySpace forbidden w/ permission GData Google Docs forbidden forbidden POP/SMTP/IMAP, XMPP GMail/GTalk ok w/ permission REST, XML RPC, SOAP Flickr unspecified forbidden GData Blogger unspecified w/ permission XML Backpack unspecified forbidden REST Adobe Share GUI automation GUI integration Official API
    14. 15. Analysis of Web 2.0 Services <ul><li>Usability: easy-to-use, intuitive; also: security, privacy, reliability </li></ul>all all private, public all private all all shared within group private, shared Private / public / shared -- tag, category -- tag, topic, annotation SlideShare -- tag, category, rating MySpace SSL folder, star Google Docs SSL label, star GMail/GTalk -- tag, note Flickr SSL label, rating, stars Blogger SSL tag Backpack -- -- Adobe Share Security Concepts
    15. 16. Conclusions <ul><li>Tagging: </li></ul><ul><ul><li>organizing things on the Web </li></ul></ul><ul><ul><li>more inclusiveness, adaptability, and usability than metadata </li></ul></ul><ul><ul><li>broad take-up </li></ul></ul><ul><li>Inclusive Social Tagging </li></ul><ul><ul><li>main factors: inclusion, adaptability, usability </li></ul></ul><ul><ul><li>understanding socio-technical dimensions </li></ul></ul><ul><ul><li>currently underdeveloped in popular services </li></ul></ul><ul><ul><li>guidance for further improvement </li></ul></ul>