eLSE

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eLSE eLearning in Software Engineering

• Stanimir Stoyanov,
• Distributed eLearning Center (DeLC),
• University of Plovdiv

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Introduction

• Different definitions, approaches, models, for
  IT supported education and learning
• CBT most of the current real systems
• eLearning
• Personalization
• Anywhere
• Anytime
• Our aim
• eLearning-oriented Infrastructure
• Prototype application in the SE domain
• What we need (in order to ensure personalization,
  anywhere anytime access to the education
  resources) ?
• Suitable approach - MDA like
• Flexible and adaptive adaptable software
  architecture
• Standards
• Access

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MDA Approach

• Creation a PIM
• UML modeling
• Converting into PSM
• UML modeling
• Dialects (profiles)
• Standard platforms
• Standard mappings and tools
• Specialized platforms
• Absence of MDA tools
• Hand coding
• Generation application code itself
• Different types of code

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Concept (idea)
PI Level
eLS1
eLS2
eLSn

mapping
mapping
Middleware level
PS Level
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Our Approach
Functional Level
Control Model
FAM
Agent Service Level
Control Model
SAM
Scenarios Level
Control Model
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Functional level

• Aim creation of a platform independent Virtual
  Information Space
• Description and modeling (UML) of expected
  functionality
• eLearning Services Model
• eContent Model
• Based on eLearning Service-Oriented Framework
• JISC, DEST, IC, ADL
• Common set of concepts and terms
• Reference model
• Defining services
• Underlain infrastructure independent
• eLearning Services Model
• Two levels
• Meta-model
• Services models
• eContent Model
• Domain model

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eLearning Services Model

• Meta-model
• Aims to provide a classification of the services
• Classification will be used for services
  searching and management during the run-time
• Ontology
• Services model
• A set of models which describe the functionality
  of different services

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eContent Model

• Closed related with the domain model
• Ontologies present the domain structure
• Different levels
• Classification
• Areas
• Objects
• eConent structures SCORM compliant
• SCOs
• Scenarios
• Models

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Scenarios level

• Idea
• Presentation of access and communication
  infrastructure as a set of run-time scenarios
• Details hiding
• Implementation on an more abstract level
• Access
• Fixed
• eLearning portals
• Mobile
• InfoStations

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eLearning Portals

• Delphi Group reference model
• Multi-layered architecture
• Each layer different functionality
• Our architecture specific layers
• User, domain, pedagogical models
• Intelligent search (CBR-based)
• SCORM run-time engine
• Implementation
• Life Ray Portal Framework

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InfoStation Architecture
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Scenario example(No Change Scenario AAA
Service Initialization)
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Scenario example(No Change Scenario Service
Delivery Alternatives)
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Scenario example(No Change Scenario Service
Termination)
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Scenario example(Change of Device Scenario)
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Scenario example(Change of InfoStation Scenario)
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Scenario example(Change of Device InfoStation
Scenario)
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Control Models

• Can we provide formalized control and management
  models?
• For different levels
• Policy-based Models?

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Personalization, Flexibility Adaptability

• eLearning Services, eContent in relation to three
  models
• User model
• Domain model
• Pedagogical model
• Using standards
• SCORM
• CC/PP
• Users personal profiles
• Users mobile devices profiles
• Adaptive
• A configuration capability
• Supported by the development environment
• Adaptable
• A run-time capability

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Implementation remarks

• Development environments and tools
• SELBO
• User-friendly tools for eContent preparing in the
  field of Software Engineering
• Possibilities for adaptation to new domains
• Supporting adaptation
• Run-time modules
• eContent access
• Fixed - eLearning portals
• Mobile - InfoStation run-time system
• Supporting adaptability

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Problems

• Can the InfoStation architecture be adequate
  presented by a set of scenarios?
• What kind of Control Management Models?
• Precise definition of adaptive adaptable
• Final portal architecture
• Agent Service Level

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Thank you !