1. eLSE (eLearning for Software Engineering) S. Stojanov ECL, University of Plovdiv

2. Topics CBT & eLearning Projects‘ overview Objectives of eLSE? Implementation approach eLSE development environment & Tools Conclusion

3. Computer Based Training eLearningSemantic Web Time/place/content predeterminated learning Just-in-time/at-work-place/ customized/on-demand process of learning Ontology-based annotation of learning materials, common-shared-meaning, machine-processable metadata “Through the Internet, education will become learner- and goal-oriented rather than faculty-centered” Lesser, Klein, MIT CBT & eLearning

4. Projects‘ overview eLSE COMMERCE eLPortal CBRFrameworkeSArchitecture BULCHINOTestPortal DeLC

5. Main objectives System infrastructure for eLearning and distance learning in software engineering Methodology for creation of e-content in SE – best practices (CM University – Development Guide …) SCORM-compliant e-content Integration of eLSE in DeLC infrastructure Multilingual

6. LOs Transfor mation SE-Editor S-Bahn Tool Glossary SE R- Editor SEnew (.ppt) SEold (.ppt) static SCORM (basic version) SE (SCORM) Version n Mod static SCORМ + S & N 1 2 45 6 3 7 8 9 Approach eLSE development environment

7. Implementation steps Restructuring – the basic learning elements of the lecture course are extracted and restructured in suitable learning objects Generation of local objects – local copies of learning objects can be generated through the S- Bahn-Tool Usage of Glossary – for generation of local copies we can use a dictionary 1 2 3

8. Implementation steps LOs Transformation (Tools) – learning objects are transformed in SCORM format (static) Generation of basic (static) SCORM version – the basic SCORM version is build from the existing learning objects (creating of manifest files) SE-Editor – the static SCORM version can be edited by help of SE-Editor 4 5 6

9. Implementation steps Modification of static SCORM – the static SCORM version can be further updated (additional learning objects can be integrated, existing objects can be deleted, …) Creation of dynamic SCORM version – to the static SCORM version sequencing and navigation information can be added Generation of the next SCORM versions – next versions can be generated from the first e-content version 7 8 9

10. First version Supports the eLearning-orieted CBT in SE Start point – existing JCSE content (.ppt) Manual restructuring of the existing JCSE content (.ppt) S & N - manual generation & inclusion Partly eLSE development environment Tools: Transformation Tools Reload-Editor (Reload – UK company in the field of eLearning) S-Bahn-Tool

11. Second version Supports eLearning in SE Start point – LOs & SCORM-compliant content 3-layered architecture: eLSE editors Transformators SCORM generators Full eLSE development environment: Domain (SE) – oriented intelligent editors Protege-based (plug-ins) Reload-based generators Education Patterns & Frameworks

12. Ontologies Formal models of a domain Shared (internet, between groups) Common modeling constructs Classes Properties Logic / Meaning Individuals Can be used to define domain- specific modeling languages

13. Web Ontology Language (OWL) W3C Standard Based on RDF(S) Ontologies are shared on the web Explicit support for linking ontologies Built-in reasoning support based on Description Logics Rule-based extension SWRL

14. Protégé Open-Source ontology editing tool Developed at Stanford Medical Informatics with help from community Evolves since the 1980s In routine use around the world Traditional domain: Biomedicine General-purpose tool and platform

15. Protégé and OWL Core System (since 1990s) Generic metamodel (OKBC) Configurable Open platform with “Plugins” OWL Plugin (since 2003) OWL Full metamodel Optimized user interface Built-in reasoning access Several thousand users

16. OWL Plugin Background OWL Plugin started in 2003 Major sources of Funding: NLM, NCI Goals (Achievements): Comprehensive support for OWL DL & Full Editing and visualizing OWL/RDF ontologies Integration of DL reasoners (classification) Open platform for Semantic Web community

17. Ontology Development Organization (Concept) Person (Concept) Event (Concept) TerroristEvent (Sub-concept)

18. Classes / Logic View

19. Classes / Properties View

20. Editing Properties

21. Editing Individuals

22. Configuring Forms

23. Classifying Individuals

24. An Open-Source Platform Available for free Transparent behavior / semantics Flexible “Plugin” mechanism New user interface components New file formats New reasoners... (your application here) 80+ plugins publicly available

25. Visualization – Example 1

26. Visualization – Example 2

27. Visualization – Example 3

28. Visualization – Example 4

29. Visualization – Example 5

30. Visualization – Example 6

31. Input - Output Formats Default: Text files Available backend plugins OWL / RDF OWL Databases RDF XML / XML Schema UML (OWL-UML bridge work in progress)

32. Other Plugins / OWL Wizard

33. Other Plugins / Prompt

34. Multi-User Mode Client-Server setup Central database Clients with user interface Changes are synchronized immediately Scalable

35. Protégé Web Browser

36. Protégé - summary An open-source ontology tool platform De-facto standard OWL editor Comprehensive OWL / RDF support Configurable visual editors Built-in reasoning capabilities Many plugins for visualization etc.

37. Conclusion - tasks for the next year: Partly implementation of the first version – only selected topics: Restructuring of selected topics – building LOs Topics as net structures of LOs Confirmation of the LOs – eventually the same approach as preparation of topics (reviews) Selection of SCORM transformation tool - (LNR- Toolkit, Theses,...)

38. Conclusion - tasks for the next year: Concept for the second version: SE ontologies – LOs as concepts:  Upper ontology  Mid-level ontology  Domain-ontology DB structure – keeping of the LOs Interfaces between ontologies and DB Using and adapting of Protégé – approproate plug-ins

39. Possible development environment? Protégé eLSE plugin Sam’s S-Bahn-Tool Keti’s multilingual dictionary