A typical application operates in one of three distinct phases, namely:
- Initial Setup
- Live Operations
- Recovery Processing
Each of these phases has a specific role in processing data. This guide deals with setting up applications in the Initial Setup phase.
During Initial Setup, master files and system-maintained files can be set up and transaction history can be entered. Information entered during the Initial Setup phase provides the basis for Live Operations.
Live Operations is used to perform daily transaction processing, file maintenance, report generation, inquiry, and monthly processing functions.
There is a certain day-to-day risk of losing data due to sudden power surges or outages and other system problems. Recovery Processing is used to manually restore information to system-maintained files or fields which are normally not accessible during Live Operations.