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eLSE (eLearning for Software Engineering)

eLSE (eLearning for Software Engineering). S . Stojanov ECL, University of Plovdiv. Topics. CBT & eLearning Projects‘ overview Objectives of eLSE? Implementation approach eLSE development environment & Tools Conclusion. Computer Based Training. eLearning. Semantic Web.

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eLSE (eLearning for Software Engineering)

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  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 eLearning Semantic Web CBT & eLearning Just-in-time/at-work-place/ customized/on-demand process of learning Time/place/content predeterminated 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

  4. Projects‘ overview DeLC BULCHINO eLPortal eLSE TestPortal eSArchitecture CBRFramework COMMERCE

  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. Approach 3 S-Bahn Tool GlossarySE 2 4 5 LOs Transformation SEnew (.ppt) staticSCORM (basic version) 6 1 7 SE-Editor SEold (.ppt) SE(SCORM)Version n Mod static SCORМ R- Editor + S & N eLSE development environment 8 9

  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

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