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Software Architecture

John Cheesman Manager, Product Architecture Application Development Division www.cool.sterling.com. Software Architecture. Topics. Sterling Software ADG & CBD Industry / Partners Application development approach Feedback / Discussion. Sterling Software ADG & CBD.

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Software Architecture

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  1. John Cheesman Manager, Product Architecture Application Development Division www.cool.sterling.com Software Architecture

  2. Topics • Sterling Software ADG & CBD • Industry / Partners • Application development approach • Feedback / Discussion

  3. Sterling Software ADG & CBD • Application Development Group • Model-Based Toolsets, 100% code generation • Rigour, Traceability, Consistency • Enterprise Application Market • “CASE” • WorldWide CBD Customer Advisory Board • 80+ members, 6-monthly meetings, monthly telecons • Component Specification Standard • Incorporate best practice into the tools and method • Customers doing CBD since 1995

  4. Industry / Partners • UML • partners in UML 1.0 and 1.1 • Microsoft Repository • joint Engine and Information model design with Microsoft • NIST • $1.6 million US grant for CBD research and application • Patterns, Frameworks, Component Specification & Architectures • Catalysis • worked with D’Souza and Wills to apply concepts • Yes, we have bought the book!

  5. Application Development ToolSet Generated Framework generate Application Model Development time Application Runtime Application Development Approach • Assembly from heterogeneous components • Application (legacy) Integration • Business Models -> Binaries • Frameworks: generation toolsets manifest application architectures; applications “customise”

  6. Application Development Approach • Technology-neutral component modeling & specification architecture (COOL:Spex) • CBD Outside, IE/OO/(CBD) Inside • Layered Architectures

  7. Feedback / Discussion • Standards (CBD96). • As-Is often dominates • new roads in London • Organisational, Cultural Issues • project funding/management, internal champions • Keep it Simple • Messages take a long time to arrive • Distortion en-route • Specification vs Implementation • Components Outside, Anything inside • Don’t need an OOP • Care with model semantics (e.g. subtyping vs subclassing) • Business Rules - where are they ? • Separate Business Process from Business Objects • variable vs stable • Replace vs Reuse - dependency management

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