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This chapter teaches you techniques for designing the overall information system application architecture with a focus on physical process models. Information application architecture and physical process modeling include techniques for distributing knowledge, processes, and communications to network locations in a distributed computing environment. Physical data flow diagrams are used to document the architecture and design in terms of design units—cohesive collections of data and processes at specific locations—that can be designed, prototyped, or constructed in greater detail and subsequently implemented as stand-alone subsystems. |