Which of the following is NOT one of the eight components of the software lifecycle?

The eight components of the software lifecycle typically encompass various stages that software goes through from inception to retirement. Among these components, "Manage," "Source," and "Sunset" all align with established stages in the software lifecycle. "Manage" refers to overseeing the assets throughout their lifecycle, "Source" pertains to acquiring software and managing third-party relationships, and "Sunset" indicates the phase where software is retired or decommissioned.

The component labeled as "Document," while important in terms of maintaining project records and ensuring compliance, does not specifically represent a distinct phase within the software lifecycle. Instead, documentation is a supporting activity that can be relevant across multiple stages but is not categorized as one of the primary components when defining the lifecycle itself. Thus, identifying "Document" as the option that is not one of the eight components of the software lifecycle highlights its role as an ancillary task rather than a standalone phase.