Requirement Analysis Steps Establish constraints on the system a.Cost b. Schedule Use of COTS(Commercial off-the-shelf)equipment Use of Existing Facility e. Operational Interface Operational environment II. Examine and characterize the mission in measurable requirement categories:quantity,quality,coverage,timeliness,availiability. Using detail functional analysis,extract new functional requirements(FFBD,N2 chart,QFD) IV. Large system may require a high-level system simulation CLGO System Engineering by J.J.Gao 13+ - I. Establish constraints on the system a. Cost b. Schedule c. Use of COTS(Commercial off-the-shelf) equipment d. Use of Existing Facility e. Operational Interface f. Operational environment II. Examine and characterize the mission in measurable requirement categories: quantity, quality, coverage, timeliness, availiability. III. Using detail functional analysis, extract new functional requirements(FFBD, N2 chart, QFD) IV. Large system may require a high-level system simulation System Engineering by J. J. Gao 13 Requirement Analysis Steps