Building Cooperative Processing Applications Using SAA
John Tibbetts designed and led the team that built one of the first wave Systems Application Architecture (SAA) applications. He and developers from other inner-circle SAA vendors met on a regular basis to share experiences and trade suggestions and this book represents their accumulated wisdom. Early chapters deal with terminology and ideas--placing the cooperative solution in its historical, sociological and metaphysical context. Introduces VIDOR, the sample cooperative processing application that appears throughout the work as a running illustration for many concepts. Part Two concentrates on SAA-specific material focusing on underlying issues, little-noted nuances and practical implications for cooperative processing. Part Three lays out a number of design principles for multi-platform systems and Part Four shows these design models embodied in concrete bundles of componentry. New and hard to assimilate material is explained through the use of algorithms, pseudocode, demos and detailed
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Why Cooperative Processing?
The Culture Clash
The Negotiated Settlement
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AD/Cycle application models architected back end build business logic capsule transaction Chapter CICS CICS/OS2 client client/server COBOL communication protocol components cooperative processing applications cooperative processing systems CPIC CUA Workplace Model Dialog Distributed Data Access distributed database Distributed Function Distributed Presentation distribution models dumb terminal environment example Figure formset front end function dispatcher graphical graphical user interfaces handle high-level HLLAPI host icon implemented integrity interactions LAN server language layer machine mainframe movie named pipe object-action object-orientation object-oriented objects OOUI order form paradigm peer-to-peer platforms portability problem profiles protocol Remote Procedure Calls request-reply SAA platforms SAA's screen screen-scraper Skill-Sets Required Smalltalk split standard structure system architecture terminal tion transaction management Trust Line UI builder uni-GUI untrusted update user interface vendors VIDOR Windows workarea workstation