Design of a large distributed information system

Abstract

The design phases for a large, distributed information system for aerospace projects are described. Careful attention to the real objectives, user requirements, and constraints upon implementation are paramount at this stage. A structured set of functional requirements allows the scope of the information system to be defined and useful feedback obtained from users, before large implementation commitments are made. The information system must be flexible and able to cope with technology changes and international standards as they mature. An interfacing approach based on international standards is described. The sheer size of the systems means that a structured approach based on functional requirements is essential. The functional requirements must describe the flow of information as well as the support activities needed for the information system. Existing hardware, software and skills must be used, and a policy adopted for maximum use of commercial software solutions. Some software tools may need to be defined as project standards.