specifications

Documented requirements for a process, service, system, or product. For example, the specifications for a list rental selection would include the number of names desired, the selection criteria, the format for the output, such as address labels or magnetic tape, and the desired delivery date. It is always important that specifications be comprehensive and accurate. The specifications for a computer system or program would describe the available input and the required output, as well as any processes that should take place in between.

Detailed instructions provided in conjunction with plans and blueprints for construction. Specifications may stipulate the type of materials to be used, special construction techniques, dimensions, and colors.
Examples: The building specifications state that:

• number 3 lumber shall be used for all framing

• studs are to be on 16-inch centers

• all exterior surfaces shall be painted white