Yustina Henny Tali (26407075) Advisers: Arlinah Imam Rahardjo , SIP., M. Lis

1. Design and Implementation of Document Sharing Application in Knowledge Management System Concept to Support The Educational Process at Junior High School “X” YustinaHennyTali (26407075) Advisers: Arlinah Imam Rahardjo, SIP., M. Lis JustinusAndjarwirawan, S.T., M. Eng

2. Introduction • Background • In Junior High School “X”, the students and teachers can share their knowledge in class at the studying time. Teachers can share their knowledge by lecturing the student. Teachers and students also can share their knowledge at the discussion in class. But the knowledge cannot be saved in a long period, because of the teacher or the student who has the knowledge, not always been at the school. It can be difficult to retrieve all knowledge from the teacher and student who has the knowledge in this school. • Goals • To make a web base application that can help users to share their document and knowledge • To make an application that can help user to retrieve document and knowledge • To make an interaction and socialization tool to support the educational process in Junior High School “X” • To make an application that not only can be used in junior high school “X” but in other schools as well.

3. Introduction (Cont.) • Problems • How to create a document sharing tool • How to create a website that allows users to retrieve knowledge • How to create a website that allows the interaction and socialization among the users. • Scope • Use explicit knowledge • There are upload and download features • The documents are limited to documents with Indonesian language • There are search feature to search the document by using vector space model algorithm • See more on page 3 and page 4

4. Theory • Knowledge Management System • Two types of knowledge: tacit knowledge and explicit knowledge. • Three options role in knowledge management: • Management of knowledge as a product • Knowledge management to bring together people who have knowledge and those who need knowledge • Combine the two previous options • Three major processes in knowledge management: • Knowledge acquisition • Knowledge sharing • Knowledge utilization

5. Theory (Cont.) • Vector Space ModelAlgorithm • TF-IDF is a method to give weight to the relationship of a word to document. • Weighting process with TF-IDF use this formula: • Similarity between query and document viewed from the large cosine angle which is owned by the query vector and document vector. • Formula to calculate similarity value :

6. Theory (Cont.) • Stemming Porter Algorithm • Process stemming in Stemming Potter Algorithm: (p.12)

7. System Analysis and Design • Old System Analysis • Knowledge distribution process (p.17)

8. System Analysis and Design (Cont.) • 3 distribution types in old system: • Distribution of teacher’s knowledge (p.18)

9. System Analysis and Design (Cont.) • Discussion in class (p.18)

10. System Analysis and Design (Cont.) • Document searching by student (p.19) • System Problems Analysis • User only can share document and knowledge when the meeting in the class and only to other user in the classroom. • Users take a long time to retrieve all the documents they need.

11. System Analysis and Design (Cont.) • System Requirement Analysis • System requirements • System needs upload and download facility to support the document sharing. • In knowledge sharing, system needs a facility to support the knowledge sharing such as forum. • System needs a facility to retrieve all knowledge in system. • System specifications • Specifications for server are MySQL as database and apache which support PHP as the web server • Specifications for client are a web browser and a connection to the server

12. System Analysis and Design (Cont.) • System assumptions • The input data are current data. • All terms in document or in forum use the correct Indonesian language

13. System Analysis and Design (Cont.) • System Design: • How the system works: (p.21)

14. System Analysis and Design (Cont.) • Four major process in this system: • User maintain process (p.21)

15. System Analysis and Design (Cont.) • Two sub processes in maintain user process: • Teacher’s data maintain (p.22)

16. System Analysis and Design (Cont.) • Student’s data maintain (p.22)

17. Document maintain process (p.23) System Analysis and Design (Cont.)

18. Forum maintain process (p.25) System Analysis and Design (Cont.)

19. Search process (p.27) System Analysis and Design (Cont.)

20. Data Flow Diagram

21. Context Diagram (p.28)

22. DFD level 0 (p.30)

23. DFD level 1 user maintain process (p.31)

24. DFD level 1 document maintain process (p.32)

25. DFD level 1 forum maintain process (p.33)

26. DFD level 1 search process (p.34)

27. DFD level 2 document indexing process (p.34)

28. DFD level 2 indexing forum process (p.35)

29. Entity Relationship Diagram

30. Conceptual Entity Relationship Diagram (p.36)

31. Physical Entity Relationship Diagram (p.37)

32. Conclusion • The results from search process in the application are same with the results from the similarity calculation process manually by using the vector space algorithm. • The duration of indexing process is depend on the numbers of term in database. • The duration of searching process is depend on the numbers of term in query. • Based on the questionnaire result, this application is getting good results. 78% for ease of document sharing, 80% for ease of document and knowledge retrieval, and 78 % for the convenience of the user interaction and socialization. • The best results are obtained from the result of the application design and benefit which are about 84% to 88%.

33. Thank You