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Key Components we’ll Develop for you in Rhapsody

Communication Points

A communication point is an interface to an external system. It is the mechanism by which Rhapsody will send and receive information to and from the external systems. Messages arrive at an Input communication point, are processed by filters and conditional connectors on the route and passed to one or more Output communication points. From there, the messages are sent to the receiving application(s). The method of communication is defined by the type of communication point used.

Filters

Filters process and often modify messages in some specific way as they pass through a route. Rhapsody has a number of predefined filters for common tasks such as mapping from one message format to another, code validation and database lookups.

Message Definitions

The mapper needs definitions for the two objects in the Input and output trees.  The Mapper can map both XML and EDI messages. An XML Schema or DTD may be used for the XML Definitions but for EDI messages the mapper needs either a Symphonia / Rhapsody PCF file or a Composer DLL.  Users of Symphonia / Rhapsody will be familiar with Composer and the Direct ActiveX objects that it produces. Composer is Symphonia / Rhapsody’s Message definition GUI. It is a tool that allows the customisation of message definitions. There is a Composer for EDI message definitions and a Composer for XML document definitions; both of these are included with the Mapper.  A PCF file is a Parser Control File. It is generated by Composer for use in the Symphonia / Rhapsody Parsing Engine. It contains information about the structure of a set of EDI messages. Composer can also generate an ActiveX DLL for a message definition. If you have generated a DLL from Composer, the mapper will be able to use it without you having to change anything.  If you need to map messages from a commonly used EDI standard such as X12, EDIFACT or HL7, it is likely that the messages you are using will be included in the Composer Library. Use the Composer wizard to import these messages and generate a PCF.