Transcript The IT Provisioning Process with CBD
Software Architecture
28 April 2020
John Cheesman
Manager, Product Architecture Application Development Division www.cool.sterling.com
Topics • • • •
Sterling Software ADG & CBD Industry / Partners Application development approach Feedback / Discussion
Sterling Software
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 [email protected]
Sterling Software
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!
Sterling Software
Application Development Approach • • • • Assembly from heterogeneous components Application (legacy) Integration Business Models -> Binaries Frameworks: generation toolsets manifest application architectures; applications “customise” Application Development ToolSet
generate
Generated Framework [email protected]
Application Model Development time Application Runtime
Sterling Software
Application Development Approach • Technology-neutral component modeling & specification architecture (COOL:Spex) • • CBD Outside, IE/OO/(CBD) Inside Layered Architectures [email protected]
Sterling Software
• • • • 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 [email protected]
Sterling Software