On-To-Knowledge review Juan-Les-Pins/France, October 06, 2000 Hans Akkermans, VUA

On-To-Knowledge reviewJuan-Les-Pins/France, October 06, 2000

Hans Akkermans, VUA

Hans-Peter Schnurr, AIFB

Rudi Studer, AIFB

York Sure, AIFB

KMMethodology

On-To-Knowledge

Processes

Summary

KM challenge

- Overall pic

- Feasibility

- User driven use cases- Supporting use cases

On-To-Knowledge Slide 2

- Ontology

WP-5 Methodology and Management Guidelines: covered issues

Identification of knowledge needs, opportunities and bottlenecks in focus areas of the organisation

Structured construction and validation of ontologies

User-focused introduction of KM tools

Maintenance and steady improvement of existing KM applications

Context-oriented requirements for envisaged knowledge management tools

Principled foundation for any knowledge management tool in the organisation

Knowledge pull and push instead of information overload

KM applications remain successful and useful in a changing organisational environment

Context-oriented requirements for envisaged knowledge management tools

Principled foundation for any knowledge management tool in the organisation

Knowledge pull and push instead of information overload

KM applications remain successful and useful in a changing organisational environment

Processes

Summary

KM challenge

- Overall pic

- Feasibility



- Ontology

Baseline version

Employment

& EvaluationExpansion & Revision

Final version

•Based on CommonKADS

•Literature study

•Systematization of existing practical experiences

•Employment of baseline version in the set of case studies

•Feedback on KM guidelines

•Revision and Expansion based on feedback

•General and comprehensive KM guidelines

•Practically illustrated by real-life industry cases

•Guide book

Month 17 Month 25 Month 30Month 8

WP-5 Workpackage project plan

Baseline version

Employment

& EvaluationExpansion & Revision

Final version

Processes

Summary

KM challenge

- Overall pic

- Feasibility



- Ontology

Agenda

• The Knowledge Management challenge

• Processes in a KM project– Overall picture– Feasibility study– User driven use cases– Supporting use cases– Focus: ontology development

• Summary

KM challenge

Processes

Summary

KM challenge

- Overall pic

- Feasibility



- Ontology

Usually, there is no easy, fast and guided access to knowledge

OTK offers solutions to KM access problems

Usage scenarios• Querying• Navigating• Community of

Knowledge Sharing

Benefits• Less time• Lower costs• Higher quality

Problems• Search... find?• No context, no guidance• What you get is hardly ever what you want

KM challenge

Processes

Summary

KM challenge

- Overall pic

- Feasibility



- Ontology

Example: WWW Search Engine

KM challenge

Processes

Summary

KM challenge

- Overall pic

- Feasibility



- Ontology

1. Usage Scenario: Querying for knowledge

Actual systems • WWW Search Engines

– e.g. Altavista• Intranet Search Tools

– e.g. Verity

Problems of keyword based search engines

• Too many results and often not the right ones

• Word selection matters!• Generalization / refinement not

possible

Solution: semantic querying

• Context via Ontology• Generalize / refine via Ontology• Match natural language queries into

ontological concepts• Predefined queries

KM challenge

Processes

Summary

KM challenge

- Overall pic

- Feasibility



- Ontology

Example: WWW Portals

KM challenge

Processes

Summary

KM challenge

- Overall pic

- Feasibility



- Ontology

2. Usage Scenario: Navigating

Actual systems • WWW Portals

– e.g. Yahoo!

Problems of navigating• Categorization of user differs

from systems categories• None or weak user guidance

within categorization• Missing visualization

Solution: Ontology as a guidance for navigation

• Guidance via Ontology• Individual views to knowledge• Dynamic views to knowledge• Visualization of hierarchies• Predefined queries

KM challenge

Processes

Summary

KM challenge

- Overall pic

- Feasibility



- Ontology

Example: Discussion forum

KM challenge

Processes

Summary

KM challenge

- Overall pic

- Feasibility



- Ontology

3. Usage Scenario: Community of knowledge sharing

Actual systems• Discussion forum

– e.g. Knowlity• Groupware systems

– e.g. Lotus Notes

Problems of communities• Motivation / incentives• Overhead work• None or weak

personalization features available

Solution: Integrated platform

• Organizational issues• Methodology captures users needs and

integrates them into application assembly • Embedded in work applications• Ontology-based profiling

KM challenge

Processes

Summary

KM challenge

- Overall pic

- Feasibility



- Ontology

Agenda



• Summary

Processes

Processes

Summary

KM challenge

- Overall pic

- Feasibility



- Ontology

From usage scenarios to processes: Use cases

Push services

Comm. of know. sharing

Nav. / browse KB

Querying KB

Seek knowledge

OTK toolset

Knowledgeengineer

Knowledgeprovider

Management

Assign people

Knowledgeworker

Ontology development

Maintenance

Annotation

Fill KB

Processes

- Overall pic

Processes

Summary

KM challenge

- Overall pic

- Feasibility



- Ontology

User-driven Knowledge Management processes

Processes in an OnToKnowledge KM project

Feasibility study

Querying KB

Navigate and browse

KB

Community of

Knowledge Sharing

Input to the KB

Supporting Knowledge Management processes

Processes

- Overall pic

Ontology develop-

mentMaintenance

Annotation of

documents

Fill the Knowledge

Base

Processes

Summary

KM challenge

- Overall pic

- Feasibility



- Ontology

Context Modelling with a Feasibility study

Feasibility study

Identifying problem/opportunity areas and potential solutions, and putting them into a wider organizational perspective.

Deciding about economic, technical and project feasibility, in order to select the most promising focus area and target solution

People involved

Application selection

Focus domain for ontology development

Input to KM processes

People

Knowledge assets

Processes

Processes

- Feasibility

Processes

Summary

KM challenge

- Overall pic

- Feasibility



- Ontology

CommonKADS - Context Modelling Road MapStart

OM-1worksheet:

problems, solutions, context

OM-2worksheet:

description of organi-

zation focus area

Refine

OM-5work-sheet

Judge Feasibility (Decision

Document)

OM-4worksheet

knowledge assets

OM-3worksheet

process break-down

Integrate

TM-1worksheet

task analysis

[If unfeasible]

Stop

TM-2worksheet

knowledge item

analysis

AM-1worksheet

agent model

Contextanalysis ready

[If feasible]

TM-2worksheet

knowledge item analysis

TM-2worksheet

knowledge item analysisProcesses

- Feasibility TM-2worksheet

knowledge item analysis

Focus domain for ontology development

People involved: GUI

Tool selection

Processes

Summary

KM challenge

- Overall pic

- Feasibility



- Ontology



Feasibility study

Querying KB

Navigate and browse

KB

Community of

Knowledge Sharing

Input to the KB


Processes

- Overall pic

Ontology develop-

mentMaintenance

Annotation of

documents

Fill the Knowledge

Base

Processes

Summary

KM challenge

- Overall pic

- Feasibility



- Ontology

Querying for knowledge

• Context via Ontology• Generalize / refine via Ontology• Match natural language queries into

ontological concepts• Predefined queries

?

? ??

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Processes

- User driven use cases

Processes

Summary

KM challenge

- Overall pic

- Feasibility



- Ontology

Example: Predefined queries

Processes


Processes

Summary

KM challenge

- Overall pic

- Feasibility



- Ontology

Ontology as a guidance for navigation

• Guidance via Ontology• Individual views to knowledge• Dynamic views to knowledge• Predefined queriesProcesses


Processes

Summary

KM challenge

- Overall pic

- Feasibility



- Ontology

Example: Guidance via Ontology

Processes


Processes

Summary

KM challenge

- Overall pic

- Feasibility



- Ontology

Example: Dynamic views to knowledge

Processes


Processes

Summary

KM challenge

- Overall pic

- Feasibility



- Ontology

Community of knowledge sharing

• Organizational issues• Methodology captures users needs and

integrates them into application assembly • Embedded in work applications• Ontology-based profiling

Processes


Processes

Summary

KM challenge

- Overall pic

- Feasibility



- Ontology



Feasibility study

Querying KB

Navigate and browse

KB

Community of

Knowledge Sharing

Input to the KB


Processes

- Overall pic

Ontology develop-

mentMaintenance

Annotation of

documents

Fill the Knowledge

Base

Processes

Summary

KM challenge

- Overall pic

- Feasibility



- Ontology


Kickoff Refinement

ONTOLOGY

Evaluation Maintenance

•Requirement specification

•Analyze input sources

•Develop baseline taxonomy

•Concept elicitation with domain experts

•Conceptualize and formalize

•Add relations and axioms

•Revision and expansion based on feedback

•Analyze usage patterns

•Analyze competency questions

•Manage organizational maintenance process

- Ontology

Processes

Processes

Summary

KM challenge

- Overall pic

- Feasibility



- Ontology


- Ontology

Processes

Processes

Summary

KM challenge

- Overall pic

- Feasibility



- Ontology

Ontology refinement supported by OntoEdit

- Ontology

Processes

Processes

Summary

KM challenge

- Overall pic

- Feasibility



- Ontology



Feasibility study

Querying KB

Navigate and browse

KB

Community of

Knowledge Sharing

Input to the KB


Processes

- Overall pic

Ontology develop-

mentMaintenance

Annotation of

documents

Fill the Knowledge

Base

Processes

Summary

KM challenge

- Overall pic

- Feasibility



- Ontology

Agenda



• SummarySummary

Processes

Summary

KM challenge

- Overall pic

- Feasibility



- Ontology

Tools vs. User-driven use cases

Inferencing Tool

Visualization Tool

QL Engine

User Interface

Knowledge Sharing Facility

Querying the KB

Navigate and browse KB

Community of knowlege sharing

Push services provided to users

Summary

Processes

Summary

KM challenge

- Overall pic

- Feasibility



- Ontology

Tools vs. Supporting use cases

Ontoedit

Inferencing Tool

Corporum

Visualization Tool

Knowledge Sharing Facility


Annotation

Maintenance

Fill Knowledge Base

Summary

Processes

Summary

KM challenge

- Overall pic

- Feasibility



- Ontology

Next steps

• Employment of baseline version in the set of case studies

• Feedback on KM guidelines

Summary

On-To-Knowledge review Juan-Les-Pins/France, October 06, 2000 Hans Akkermans, VUA

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Transcript of On-To-Knowledge review Juan-Les-Pins/France, October 06, 2000 Hans Akkermans, VUA