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This section provides more detailed information and definitions on the five Data and Transactional Functions. Before getting into the details of the five functions there are several terms that you need to understand, because they'll be used in each of the subsequent definitions. These are taken directly from the CPM.
Important terms and definitions used in describing the five functions
- User identifiable
- This term refers to defined requirements for processes and/or groups of data that are agreed upon, and understood by, both the users and software developers.
- Control information
- This is data that influences and elementary process of the application being counted. It specifies what, when, or how data is to be processed.
- Elementary process
- An elementary process is the smallest unit of activity that is meaningful to the user. An elementary process must be self-contained and leave the business of the application being counted in a consistent state.
- Data Element Type, or DET
- A data element type is a unique, user recognizable, non-repeated field. This definition applies to both analyses of data functions and transactional functions.
- Record Element Type, or RET
- A record element type is a user recognizable subgroup of data elements within an Internal Logical File or External Interface File.
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