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Graphics Interchange Format  |  1997-01-12  |  82.0 KB  |  974x338  |  4-bit (16 colors)
   ocr: The Logical View Three Functions. To effectively partition an application for, multi- tiered environments, developers DATA ACCESS must be aware of two views of the application - logical and physical. BUSINESS LOGIC The logical view divides the appli- cation into the presentation, busi ness PRESENTATION logic and data access func- Datas Server tions. The presentation function - is handled by the client. The busi Process Server ness servers logic (or is application handled by servers) process within the network. The data Client function is handled by access data servers and includes data access, ...