• (A) Process of estimating the costs associated with software development projects that include the effort, time, and labor required.
• (B) Overall cost of maintaining a computer system that includes the costs associated with personnel / training/ maintenance of hardware and software/ requirements growth.
• (C) Overall cost of operating a computer system that includes the costs associated with personnel / training / system operations.
• (D) Overall cost of a computer system to an organization that includes the costs associated with operating/ maintaining the system, and the lifetime of operational use of the system.