Knowledge Acquisition using PcPack Video Tutorial

Transcription

1 Computer Science Department American University in Cairo Knowledge Acquisition using PcPack Video Tutorial Prepared by: Ealaf Selim Noha El Kady Yasmine Magdi Submitted to: Dr. Ahmed Rafea

2 Outline Overview of PcPack Package. PcPack Tools. Knowledge Base Case Study. Applications of the Different Tools. Protocol Analysis Tool. Laddering Tool. Annotation Tool. Matrix Tool. Diagram Template and Diagram Tools. Conclusion.

3 Overview of PcPack Package PCPACK is an integrated suite of knowledge tools designed to help the knowledge Engineer during the knowledge acquisition and analysis phases. Simple and Easy to use. Facilitates knowledge base management, sharing, maintenance, validation, and reuse.

4 PcPack Tools Protocol Tool Analyses a transcript or any document Laddering Tool Constructs hierarchical diagrams Diagram Tool Constructs network-style diagrams Matrix Tool Constructs various grids / matrices Annotation Tool Creates web-style pages for each knowledge object

5 Knowledge Base Case Study The knowledge base implemented in the project is a fraction of a large knowledge base which was created from the book "Object Oriented Software Engineering: Practical Software Development Using UML and Java" by Timothy C. Lethbridge and Robert Laganière. The knowledge base acted as a super glossary of the book, showing all the major and minor components of the software Engineering process.

6 Knowledge Base Case Study In our project, we focused on the modules of the software engineering process. We decomposed the modules into subcomponents and established the relation between the different components. Full knowledge base could be found at

7 Knowledge Base Case Study

8 Application of PCPack Tools

9 Protocol Analysis Tool Used to analyze documents by highlighting keywords with marker pens which represent concepts, attributes and other types of knowledge. You can define your own marker pens to represent your custom knowledge types.

10 Protocol Analysis Tool

11 Laddering Tool Ladders are used to represent a graphical hierarchy of knowledge objects. Laddering Tool can be used to create different types of ladders with different types of relations. It allows the user to manipulate the view of the ladder he creates.

12 Laddering Tool - Concept Ladder

13 Laddering Tool - Tangled View

14 Laddering Tool - Untangled View

15 Laddering Tool - Attributes Ladder

16 Annotation Tool Used to create web-style pages displaying stored information about knowledge objects. The Structure of such a page is defined using an annotation template. An Annotation template can contain static html text or formulae.

17 Annotation Template

18 Annotation Sample

19 Matrix Tool Used to create and edit matrices. There are two types of matrices: An object attribute matrix: to display all Categorical attributes assigned to a selected range of objects. A relationship matrix: to indicate relationships of different types between row and column objects.

20 Matrix Tool

21 Matrix Tool

22 Diagram Template Tool It must be created before a diagram can be drawn. The format and style of diagrams are established in the diagram templates. Any number of templates can be created and used for a knowledgebase. Relation Properties for a relation may need to be defined before a relationship can be created.

23 Diagram Template

24 Diagram Template

25 Attribute Tree Template

26 Diagram Tool Used to create and edit diagrams. Most types of diagrams that contain linked notes can be represented. Individual nodes in a diagram represent knowledge objects in the knowledge base and each link represents a relationship between two of these objects. The types of nodes and links used in a diagram are determined by a diagram template which must exist before a diagram can be created.

27 A Diagram for Java class illustrating the is_a relation

28 Diagram of the categorical attribute tree

29 Sample Video

30 Conclusion PCPack is a very convenient and flexible tool to use in Knowledge Acquisition. It facilitates knowledge acquisition and modeling, and can be used to publish knowledge bases or export them to be used by other tools. However it is not mature or stable enough and some of its features need further improvement.

31 Questions?