Stage (glossary)

A period within the life cycle of an entity that relates to the state of its description or realization. (ISO/IEC/IEEE 15288)

Source

ISO/IEC/IEEE. 2015. Systems and Software Engineering -- System Life Cycle Processes. Geneva, Switzerland: International Organisation for Standardisation / International Electrotechnical Commissions / Institute of Electrical and Electronics Engineers. ISO/IEC/IEEE 15288:2015.

Discussion

A lifecycle stage is also referred to as a phase.

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