Sequence diagram In UML it is a structured representation of behavior as a series of sequential steps overtime. Sequence diagram is a kind of interaction diagram that shows how processes operate with one another and in what order.
Signoff: see Requirements acceptance.
SME: see Subject Matter Expert
Software: Computer programs, procedures, and possibly associated documentation and data pertaining to the operation of a computer system IEEE 610].
Software Failure Mode and Effect Analysis (SFMEA): See Failure Mode and Effect Analysis (FMEA).
Software Failure Mode, Effects, and Criticality Analysis (SFMECA): See Failure Mode, Effects, and
Criticality Analysis (FMECA).
Software lifecycle: The period of time that begins when a software product is conceived and ends when the software is no longer available for use. The software lifecycle typically includes a concept phase, requirements phase, design phase, implementation phase, test phase, installation and checkout phase, operation and maintenance phase, and sometimes, retirement phase. Note these phases may overlap or be performed iteratively.
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