EnerSearch Case Study: VE Prototype D28 3rd Review of OnToKnowledge on Milestone III June 21, 2002 A - PowerPoint PPT Presentation

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EnerSearch Case Study: VE Prototype D28 3rd Review of OnToKnowledge on Milestone III June 21, 2002 A

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Title: EnerSearch Case Study: VE Prototype D28 3rd Review of OnToKnowledge on Milestone III June 21, 2002 A


1
EnerSearchCase Study VE Prototype (D28)3rd
Review of OnToKnowledge on Milestone III June 21,
2002AmsterdamVictor Iosif
2

EnerSearch and its shareholders
  • EnerSearch is a virtual organisation researching
    new IT-based business strategies and customer
    services in deregulated energy markets.
  • Shareholders Major EU utilities and IT suppliers
  • Focus understand opportunities of advanced IT
    for deregulated utility industry
  • Goal knowledge creation and distribution for
    Shareholders/Researchers and Others
  • KM is therefore key!

3
EnerSearch Current Shareholders
  • ABB (Sweden/Switzerland)
  • E.On (Germany)
  • ECN (Netherlands)
  • Electricidade de Portugal
  • Iberdrola (Spain)
  • IBM (Germany/Sweden)
  • Sydkraft (Sweden)

4
Exploitation
  • Work with and knowledge transfer to shareholders
    in this area is an ongoing process
  • Board meetings, on-site executive workshops,
    projects
  • Ontology-based tools will improve the
    effectiveness and efficiency of this key activity
  • EnS website is major resource (has even brought
    in new shareholders) and will be significantly
    improved according to OTK lessons learned

5
Motivation for Using the Ontology Based
Tools
  • The tools are developed in the project
  • Users can start simple query consisting of only
    small number of search terms in order to get a
    picture on what kind on information that is in
    the database
  • It present the information according to the
    inherent
  • structuring that is offered by the ontology
  • The search object is surrounded by related
    objects
  • Generalisation and specialisation are offered to
    the user

6
Users Tools
  • Three different interest groups
  • Shareholders from four different companies (15)
  • Researchers from Ronneby Software Center (15)
  • Outsiders ( 15-20 )
  • Three different tools
  • Free text search tool gt EnerSEARCHer
  • Ontology based search tool gt QuizRDF
  • Ontology based navig. tool gt Spectacle

7
Experiment Procedure
  • Compare the EnerSEARCHer with the performance of
    subjects using the QuizRDF Spectacle tool
  • Each subject is confronted with different
    questions related to the EnerSearch web
  • Equal number of questions for each tool to be
    tested in different task order - testing all
    three tools

8
Experiment Design
  • Hypotheses
  • H1 Users will be able to complete search task in
    less time
  • H2 Users will make fewer mistakes..
  • H3 The reduction in completion and number of
    mistakes will be more noticeable for less
    experienced users.
  • H4 The reduction in time will also be more
    noticeable for users lacking detailed knowledge
    of the knowledge based system implementation.
  • H5 The ontology based search tool will be viewed
    as more useful for a broad range of domains and
    knowledge acquisition scenarios by different type
    of persons than using free text search.
  • H6 The effort developing and maintaining the
    ontology and information structure will not
    significantly exceed the effort to develop and
    maintaining the free text approach.

9
Place in On-To-Knowledge
OntoShare
User
RQL
QuizRDF
Spectacle
Knowledge Engineer
OntoEdit
OIL-Core
OMM
BOR
Sesame
OIL-Core ontology repository
Annotated Data Repository
RDF
RDF
pers05
731
par05
car
tel
about
OntoExtract
OntoWrapper
Data Repository (external)
10
Place in On-To-Knowledge
11
Why Decision Styles?
  • Make the experiment more informative by also
    looking at cognitive styles of persons
  • Measuring cognitive styles is done by
    administering standard test to subjects
  • Find out whether there are correlations between
    cognitive styles and semantic web tool use (see
    test hypotheses)
  • Theory used in the field of organisational
    behaviour (Driver)

12
Style Dimension I Information Use
  • Information Use
  • Amount of information actually used in the
    process of making decisions and solving problems.
  • Maximizer
  • High
  • Level Satisficer
  • Of Good enough
  • Understanding/ solution
  • Value of info
  • Low
  • Low Amount of information used
    High

13
Style Dimension II Solution Focus
  • Solution Focus
  • Zeroing-in on one clear-cut solution or course
    of action vs. identifying multiple solutions
    and/or alternate courses of action.
  • Uni-Focused Style
  • Multi-Focused Style

Data
Data
14
What Data To Collect
  • Semi-structured interviews (pre- and post trial
    interviews)
  • Time to complete the whole search task
  • Automatic log of changes
  • Automatic log of errors in the search task
  • Automatic log of commands executed
  • Detailed notes of the actions performed by the
    subject/on-site observations
  • Questionnaires to be filled in by the user

15
Some Examples of Test Questions
  • How does load management affect pricing?
  • How is a virtual organisation formed?
  • What styles of decision making can be
    distinguished?
  • In what project has Claes Badenscheneider been
    active? (name misspelt with purpose)
  • To whom should a registration for a ISPLC 2001 be
    sent? (email link to Yvonne. H)
  • Where can you find information on virtual
    organisations?
  • Name a knowledge management methodology?
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