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A CA 2E context is a grouping of the fields that are available for use at a particular processing step in an action diagram. A context specifies which instance of a particular field is to be used. Fields can be referenced for use as parameters in functions and in conditions to control functions.
Different contexts are available at different points of the action diagram depending on the function type, the stage of processing, and the particular nature of the user point; that is, whether a subfile control format or a record detail format is being processed.
Each type of context is identified by a three-letter CA 2E code. For example, PAR for parameter fields, CON for constant fields, and WRK for work fields. The following pages describe the context types and their usage.
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