Accession Number:

ADA055192

Title:

Structured Analysis and Design of a Satellite Simulator

Descriptive Note:

Master's thesis

Corporate Author:

AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING

Personal Author(s):

Report Date:

1977-09-01

Pagination or Media Count:

108.0

Abstract:

The problem addressed in this thesis is the analysis of a complex satellite command system and the design of a software simulation of that system. The problem is solved in three steps. First, a written requirements definition establishes a sound viewpoint and purpose on which the analyst can base his design. This requirements definition explains why the simulator is to be created, how it is to be constructed, and what it is to do. Second, a top-down strategy called structured analysis is applied to create the preliminary design. The structured analysis is presented in a blueprint-type language with activity and data models. The models represent graphically the functions performed by the simulator and the information upon which those functions act. A final design refinement is performed with a structured design methodology called transform analysis. The structure charts drawn during the transform analysis reveal system characteristics which illustrate design quality. The activity model acts as a catalyst to a successful transition from a top-down analysis to a structured design which can be evaluated. The resulting simulator design, with minor revisions, satisfies the design resulting goals established for the project. The methodology used is highly recommended for the analysis and design of any software system.

Subject Categories:

  • Computer Programming and Software
  • Unmanned Spacecraft
  • Command, Control and Communications Systems

Distribution Statement:

APPROVED FOR PUBLIC RELEASE