Domain Modelling the upper levels of the eframework

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Domain Modelling the upper levels of the
eframework

• Yvonne Howard Hilary Dexter
• David Millard
• Learning Societies Lab Distributed Learning,
  University of Southampton, UK University of
  Manchester, UK

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Where we did we start?- FREMA

• The e-Framework REference Model for Assessment
• JISC funded Project between Southampton,
  Strathclyde and Hull
• 2004 - 2006
• Aim to produce a Reference Model of the
  e-Learning Assessment Domain
• To aid interoperability and aid in the creation
  of Assessment Services for the e-Framework

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Definitions

• What is a Reference Model?
• A guide to help developers create web services
  that work with one another
• But there is more than one type of guide
• A standard data format
• A best practice example of service design
• A methodology for creating or describing services
• A description of what is currently available
• What is a Reference Model for Assessment?
• Assessment is a broad and complex domain
• Many different assessment scenarios
• More than one data model
• More than one set of cooperating services
• An active Community requires an evolving model

FREMA
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Domain Modelling
Domain Context
Domain Information Model
Stakeholders and Role Models
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Goal and Function Model
FREMA Ontology
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Stakeholders and Personas
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Concept Maps
Domain System Model
Scenarios (workflows and narratives)
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Semantic Wiki Pages
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Use Cases and Interaction Diagrams
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Concept Mapping
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Concept Maps

• Focused on the key activities in the domain (the
  functions)
• Captured the domain knowledge of the experts
• The goals in the domain
• Important functions
• Entities in the domain
• Begins to structure the knowledge
• Built a shared understanding of the domain
• Common vocabulary of domain areas

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FREMAConcept Map (verbs)
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Concept Maps
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A Knowledge Base
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FREMA Ontology

• Decided to deliver our domain model as a
  searchable, flexible, dynamic website
• Built on a knowledge base
• Requires an ontology of resources in the domain
  with relationships between them
• The ontology is the schema that describes what
  types of resources and relationships are allowed
• (Ontology means the study of existence, and an
  ontology is a particular view of existence)
• The ontology is different from the concept maps
• Concept maps shows areas of the domain
• Ontology shows what type of thing can be in the
  domain

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The FREMA Ontology
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FREMA Ontology
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Ontology Example
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Semantic Wiki Pages
Organisation JISC
Organisation University of Southampton
Project FREMA
Is funded by
Is involved in
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Semantic Wiki
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Semantic Wiki Pages

• Semantic Wiki
• a wiki in which all the pages and links are typed
• Open editing, but with Administrator controls
• Users can edit
• Resources
• Relationships between resources
• The ontology itself
• Enables full evolution of the Domain Information
  and System models
• Enables Smart Searching and Analysis
• Semantic Search
• Dynamic Gap Analysis

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Browsing the Wiki
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Semantic Wiki Pages
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Dynamic Gap Analysis
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Semantic Wiki Pages
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Scenarios
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Use Cases and Interaction Diagrams

• Scenarios capture a certain activity (function)
  within the Domain
• Can be captured at different levels of formality
• From narrative descriptions
• Through to real interacting services

Service Implementations
Service Interfaces (WSDL)
Service Workflows (BPEL)
FREMA
formality
Service Expressions
Service Interactions
Use Cases
Written Scenarios
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Service Usage Model
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Use Cases and Interaction Diagrams

• Describes a scenario in which services work
  together
• Use Case Diagram
• Set of Abstract Logical Service Expressions
• Interaction Diagram

Service Implementations
Service Interfaces (WSDL)
Service Workflows (BPEL)
FREMA
Service Expressions
Service Interactions
Use Cases
Written Scenarios
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Scenario Technical Developer

• Will, Technical Developer
• I want to lookup use cases and scenarios to
  help me design my application. This will help me
  to define my footprint in the assessment domain.
  I see there are some web services I could re-use
  but some are missing. What standards can I use
  when writing my own web services to ensure that I
  can interoperate with the web services Ive
  chosen?

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Where were going - eFUL

• Integrating the eframework models
• Hilda
• What goes on
• Formally modelled views e.g. lifecycle stages
• Enables strategic domain analysis
• and Frema like models
• What is there
• lazy approach, easier to contribute
• Together can answer this kind of question
• Show me all the Standards that are relevant to
  the Course Evaluation stage of the Course
  Lifecycle.
• International eframework
• low level, technical, formal descriptions of how
  services are defined and work together
• Service Genre - a family of services.
• Service Expressions a specific abstract
  service.
• Service Usage Models (SUMs) an area of work,
  and a description of how Service Genres and
  Expressions might collaborate to do that work.

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The three models working together

• The e-framework is made up of three layers that
  translate into these three models

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eFUL Ontology
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eFUL semantic wiki exemplar
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What are the challenges to achieving the eFUL?

• If we build it, will they come?
• Boot-strap the eFul?
• FREMA content?
• SIG involvement?
• If we build it, how do we protect carefully
  constructed domain knowledge from thoughtless
  destruction?
• Editing Interfaces that help convergence?
• Peer review?
• SIG involvement?

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• Thank you
• http//www.frema.ecs.soton.ac.uk/