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PowerBuilder® 9: Internet and Distributed Application Development by John D. Olson, Bill Green

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Application Architecture

Building component-based applications is drastically different from building event-driven applications (such as PowerBuilder client/server) or top-down applications (such as Cobol modules). When you develop with components you are making intercomponent calls to perform processing. Security and transactions are most affected by this development approach. The steps to developing a component-based system are to define a server, then a package, and finally the components.

Servers

Our components will run on the server. The server hosts components and the components are accessed by looking up their location using a name server. When you develop component-based systems you will define multiple servers for development, QA, and ...

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