A hybrid requirements analysis methodology was developed, based on the practices actually used in developing a Space Generic Open Avionics Architecture. During the development of this avionics architecture, a method of analysis able to effectively define the requirements for this space avionics architecture was developed. In this methodology, external interfaces and relationships are defined, a static analysis resulting in a static avionics model was developed, operating concepts for simulating the requirements were put together, and a dynamic analysis of the execution needs for the dynamic model operation was planned. The systems engineering approach was used to perform a top down modified structured analysis of a generic space avionics system and to convert actual program results into generic requirements. CASE tools were used to model the analyzed system and automatically generate specifications describing the model's requirements. Lessons learned in the use of CASE tools, the architecture, and the design of the Space Generic Avionics model were established, and a methodology notebook was prepared for NASA. The weaknesses of standard real-time methodologies for practicing systems engineering, such as Structured Analysis and Object Oriented Analysis, were identified.
Requirements Analysis Notebook for the Flight Data Systems Definition in the Real-Time Systems Engineering Laboratory (Rsel)
1991
117 pages
Report
Keine Angabe
Englisch
Space Technology , Airborne/spaceborne computers , Avionics , Real time operation , Spacecraft electronic equipment , Systems engineering , Architecture (Computers) , Astrionics , Computer aided design , Data systems , Software engineering , Software tools , Data flow analysis , Dynamic models , Static models
Antenna systems requirements definition study
NTRS | 1981
|Online Contents | 1997
Online Contents | 1997
Online Contents | 1997