| Definition: | set of activities involved in the development and operation of software during a period of time that starts at a concept phase with the software requirements specification and finishes when the software is withdrawn from use
Note 1 to entry: The software life cycle typically includes a specification phase, design phase, implementation phase, test phase, installation and check-out phase and an operation and maintenance phase. Note 2 to entry: This entry was numbered 394-33-15 in IEC 60050-394:2007.
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