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OTHER KNOWLEDGE CAPTURE TECHNIQUES
Lecture Five
(Chapter 5, Notes;
Chapter 6, Textbook)
Chapter 5: Some Knowledge Capturing Techniques
5-2
Review of Lecture 4The Knowledge Capture Process
Single vs. Multiple Experts (Pros and Cons)
Interview As Knowledge Capture Tool
Sources of Errors and Problems in Interview
Chapter 5: Some Knowledge Capturing Techniques
5-3
Other TechniquesOn-site Observation (Action Protocol)Brainstorming (Conventional & Electronic) Consensus Decision MakingNominal Group TechniqueDelphi MethodRepertory GridConcept MappingBlackboarding
Chapter 5: Some Knowledge Capturing Techniques
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On-Site ObservationProcess of observing,
interpreting, and recording expert’s problem-solving behaviour as it takes place
Places the knowledge developer closer to the actual steps and procedures used by the experts
Chapter 5: Some Knowledge Capturing Techniques
5-5
On-Site Observation (cont)Problems: Some experts do not like to be
observed
Reactions from peers during observation can be distracting
Accuracy or completeness of captured knowledge weakened by time gaptime gap between between observation and recordingobservation and recording
Chapter 5: Some Knowledge Capturing Techniques
5-6
Brainstorming An unstructured, consensus-
based approach to generating ideas about a problem
Suitable for multiple experts
All possible solutions considered equally
Goal is to foster the frequency of responses during the session
Conclude by idea evaluation
Chapter 5: Some Knowledge Capturing Techniques
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Role of Knowledge Developer in Brainstorming Session Introduce and coordinate the
brainstorming session
Give experts a problem to consider
Prompt experts to generate ideas
Watch for signs of convergence
Call for a vote to reach agreement
Chapter 5: Some Knowledge Capturing Techniques
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Electronic Brainstorming Computer-aided approach to
brainstorming Promote instant exchange of
ideas between experts Require a pre-session plan to
identify objectives and structures the agenda
Anonymity reduces effects of shyness, etc.
Shorter meeting with concise recommendations
Chapter 5: Some Knowledge Capturing Techniques
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Electronic Brainstorming (Ex.) An example of a software supporting E-
brainstorming A session can present a number of
electronic sheets to collect ideas from the participants.
Chapter 5: Some Knowledge Capturing Techniques
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Electronic Brainstorming (Ex.) Participants enter ideas in one sheet while
reading ideas that have already been entered. Knowledge developer provides guidance on
exactly how this activity will function.
Chapter 5: Some Knowledge Capturing Techniques
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Protocol AnalysisThink-aloud approachExpert verbalizes while going through
a problem solutionProtocols are recorded and analyzedKnowledge developer does not
interfere in the solving processStructuring of recorded information
occurs when knowledge developer analyzes the protocols.
Chapter 5: Some Knowledge Capturing Techniques
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Consensus Decision MakingConsensus is a process for group
decision-making Input of all participants are
gathered and synthesized to arrive at a final decision, that is acceptable to all
Through consensus, not only achieve better solutions, but also promote community and trust
As a tool, it follows brainstorming
Chapter 5: Some Knowledge Capturing Techniques
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Consensus Procedure (Steps 1-4) A proposal for resolution is put forwardAmend and modify proposal through
discussionThose participants who disagree with the
proposal have the responsibility to put forward alternative proposals
The one who put forward the proposal, with help of facilitator, can choose to withdraw proposal if seems to be dead end.
Chapter 5: Some Knowledge Capturing Techniques
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When a proposal seems to be well understood and no new changes asked for, the facilitator confirm any objections
If no objections, the facilitator can call for consensus
If there are still no objections, then after a moment of silence, you have the decision
If consensus appears to have reached, the facilitator repeats the decision so everyone is clear
Consensus Procedure (Steps 5-8)
Chapter 5: Some Knowledge Capturing Techniques
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Nominal Group Technique (NGT)
An idea writing technique A structured variation of small
group discussion method Prevents the domination by a
single expert Encourages the more passive
experts to participate Results in a set of prioritized
solutions or recommendations
NWRI-USA 2003
Chapter 5: Some Knowledge Capturing Techniques
5-16
NGT (Steps 1-4) Divide the people present into small groups
of 5 or 6 members, sitting around a table State an open-ended question (“What are
some ways we could encourage people to car pool?”)
Have each Person spend several minutes in silence individually brainstorming all possible ideas and write these ideas down
Have each group, collect the ideas by sharing them in a round-robin fashion, while recording them on a flipchart
Chapter 5: Some Knowledge Capturing Techniques
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NGT (Steps 5-7) Have each Person evaluate the ideas and
anonymously vote for the best ones (e.g., best idea gets 8 points, next best 7 points, third best 6 points, etc)
Share votes within the group and tabulate. A group report is prepared showing the ideas having most points.
Allow time for brief group presentations on their solutions.
Chapter 5: Some Knowledge Capturing Techniques
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NGT (Advantages)
Effective in minimizing differences in status among multiple experts
Each expert has an equal chance to express ideas in parallel with other experts in the group(s)
With the discussion proceeds in controlled order, it can be more efficient and productive than brainstorming
Chapter 5: Some Knowledge Capturing Techniques
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NGT (Drawbacks) Technique can be time consuming
Could promote impatience among experts who must listen to discussions with other experts
With multiple experts sharing expertise, a cause of difficulty in adopting the best solution
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Delphi Method A survey of experts
A series of questionnaires developed to pool experts’ responses in solving a difficult problem
Each expert’s contributions shared with rest of experts by using results of one questionnaire to construct the next questionnaire
Chapter 5: Some Knowledge Capturing Techniques
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Delphi Method (Pros and Cons)Pros Anonymous response Controlled feedback Statistical group response
Cons Poorly designed questionnaire can be
ineffective in capturing the complexity of the problem domain
Experts may lack complete knowledge to base their answers
Chapter 5: Some Knowledge Capturing Techniques
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The Repertory Grid An expert conceptualizes the problem using
his or her own model Grid used to facilitate the capture and
evaluation of the expert’s model A representation of the experts’ reasoning
about a particular problem A grid can be a scale or a bipolar construct
on which elements are placed within gradations
Chapter 5: Some Knowledge Capturing Techniques
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ConstructT1 T2 T3 T4 T5 T6
A. Inexperience 3 3 1 1 1 1
B. Academically
Ill-qualified2 1 2 1 1 3
C. Poor
Appearance3 2 1 2 1 3
D. Not punctual 2 3 2 3 1 1
E. Introverted 2 3 2 2 1 1
DixieJohnBarryCurtLesterJoanne
Scale: 1 to 3
Job Interview Rating Repertory Grid (Example)
Chapter 5: Some Knowledge Capturing Techniques
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The Repertory Grid (Pros and Cons)
Benefit: may prompt the expert to think more concretely about the problem and how to solve it.
Drawback: difficult to manage when large grids are accompanied by complex details
Because of complexity and manageability, the tool is normally used in the early stages of knowledge capture
Chapter 5: Some Knowledge Capturing Techniques
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Concept MappingA network of concepts, consisting of
nodes and linksA node represents a concept and a link
represents the relationship between concepts.
An effective approach for: design a complex structure (Web sites) generate or communicate ideas (e.g.,
during brainstorming) diagnose misunderstanding
Chapter 5: Some Knowledge Capturing Techniques
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Concept Map - A Simple Example
Chapter 5: Some Knowledge Capturing Techniques
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Steps in Concept Mapping
STEPS INCONCEPTMAPPING
1 Preparation of ProjectParticipants, focus, schedule
2Idea Generation(focus for brainstorming)
3Idea Structuring(sorting/rating statements)
4Representation
5Interpretation(cluster analysis)
6Utilization
Chapter 5: Some Knowledge Capturing Techniques
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Concept Map on PathogensA pathogen, commonly known as germ, is a biological agent that causes disease to its host.
Chapter 5: Some Knowledge Capturing Techniques
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Blackboarding (Groupware) Participants are
assumed experts with unique experience
Each expert has equal chance to contribute to the solution via the blackboard
Process continues until the problem has been solved
Join Information Technologies 2003
Chapter 5: Some Knowledge Capturing Techniques
5-30
Blackboarding (Characteristics)Participants share a common protocol
for interaction
Organized participation
Iterative approach to problem solving
Flexible representation of information
Efficient storage and location of information
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End of Lecture Five
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Three important steps Use an appropriate tool or
technique to elicit information from the expert
Interpret the information and infer the expert’s knowledge and reasoning process
Use the interpretation to build rules that represent expert’s solutions
Chapter 5: Some Knowledge Capturing Techniques
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Voting in each group
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