using reference models to drive business transformation in the he sector dr samia oussena thames...
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Using reference models to drive business transformation in the HE sector
Dr Samia Oussena
Thames Valley University
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Enterprise information system design
Evolution from a centralised mainframe applications to a services oriented architecture
Understanding the business process and aligning the development or the procurement of services to support the business process
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Business modelling as a transformation tool
Business process involve workflow management
Formalising is a shared way of understanding the way the things work
Process model help support of the quality management system
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COVARM project
The COVARM project sets out to contribute a reference model for a “Course Validation” service to become a component of the JISC eFramework Programme.
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Project Consortium
Thames Valley University (Lead partner)
Prof. Balbir Barn Dr Samia Oussena Dan Sparks
University of Manchester Dr Hilary Dexter Dr Jim Petch
Manchester Metropolitan University
Dr Mark Stubbs
Staffordshire University Prof. Mark Stiles Dr Jennifer
Ealing and Hammersmith West London College
Satwant Deol
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Course validation process as a value creation process
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Reference Model
A reference model is based on a small number of unifying concepts
An abstraction of the key concepts, their relationships, and their interfaces both to each other and to the external environment.
A reference model may be used as a basis for education and for explaining standards to a non-specialist
can be viewed as a framework for comparing architectures and operations of existing and future systems.
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Reference model
A framework can be used for specifying requirements and benchmarks in procurements or development of systems
The codification of interface structure will also encourage the development of software tools to enable the development of software tools that conform to the reference model
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COVARM approach
Fundamentals Model based approach using UML (1.5 and
2.0) Application and adaptation of software
engineering methods – component based development and Rational Unified Process
Iterative
Stages
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Method principles
Principles
Grounded Case Study Approach- 4 case studies- review by an independent HEI- compare against survey results
Business process based
functional
InformationModel data
UML end to end
Model driven
Adapted web services development method
Componentbased
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Stages
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Business process characteristics modelled
Stages Roles Objects and their flow – instances of docs produced Events – something that triggers a set of activities Collaborations – activities executed by two or more
roles Activities Constraints Specific activities to support eLearning Life-cycle / states of objects – Programme Interfaces with other enterprise information systems Reference Docs – e.g. strategy docs
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Process model example
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Domain information model
UML class diagram for capturing set of elements and roles in the course validation domain
High level of abstraction with only key relationships between the elements included
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Domain model example
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Synthesizing the process models
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Rule based approach to process and information synthesis
Identify elements in a process that were common to all four institutions
Identify the principal variation points where an institution may differ from others
Define activities that are unique to an institution and provide a mechanism for those activities to be integrated into the common set.
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Synthesis Rules Characteristic Synthesis Rules
Stage The principal stages were identified and aligned across the four processes. The detailed activities were compared within the bounds of the high level alignment
Activities Where possible, common activities were identified. Where a single activity differed between institutions it was modelled as an abstract activity with four specializations. If there was a sequence of activities that differed across the institutions a control node was entered and a sequence modelled for each.
Role The principal roles were aligned and a general name allocated. The equivalent roles in each institution were modelled as specializations of the general role. Each activity in the synthesized process model was annotated with its responsible role, common activities with the general name and specialized activities with their own local role name.
Object Flow An abstract object was created for each object flow, given a general name and then specialized for each institution.
Object Lifecycle
Each institution's document lifecycles were modelled separately and the appropriate states placed on the specialized objects.
Event Events were used in the synthesized model at the start of high level activities and to trigger activities by collaborating roles. The synthesis decisions for activities and their responsible roles determined event placement.
Collaborations Activities carried out in collaboration were modelled by an association stereotyped as «joint».
Constraints Constraints were preserved from their source models for specialized activities. If a common activity had been identified the constraint had a CASE statement for each institution.
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Process model: synthesis
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Information model: synthesis
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Stages
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Design the web services
Model the web services at the business level
Define XML data representations of the information consumed and produced by services
Generate appropriate implementation models of the service specifications.
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Modelling services specification
Method based on a number of sources. (Cheesman Daniels, D’Souza and Will..)
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Initial results
Positive response from institutions whose enterprises have been modelled.
Staffs have indicated that this activity has raised some questions on their processes
Manchester want posters of the process!
TVU have expressed interest in the additional reporting that will be possible via tools hosted on the reference model
Process Patterns emerging from the models Consultation with expert; Assessment and Approval; Convene Panel; Meet Conditions; Refinement Pattern Sign-off Pattern; Collaboration Pattern;
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Initial results (cont)
Business Process and Information models from 4 institutions
Rules for combining process models
Generalised Canonical Process and Information Model
Utility web service : document management service
Business web service: Event coordination service
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Questions?