25.1. Basic CRSS Flow

Creating the CRSS system requires that you understand the workflow. The workflow is usually derived from sequence diagrams. The following steps outline the basic workflow that the CRSS system will use.

  1. User requests various actions from the system.

  2. Requester is validated via a security component.

  3. Request is fulfilled by a database query.

  4. Response is formatted to render correctly on user’s Web device.

The system uses XML technologies extensively. The user’s request is converted to XML. Required processing from that point forward is conducted by using XML messages. Obviously you need to apply XML schemas to the messages and database interface to validate the input message and provide correct results.

The CRSS application illustrates ...

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