The Systems Design is concerned with developing the proposed guidelines for the test based on this configuration is more likely to meet objectives both from a functional point of view of non-functional (what we earlier called constraints). The process of designing a complex system is usually performed in descending order:
- High level design (or decomposition of the system design in less complex subsystems)
- Design and implementation of each of the subsystems:
- consistent and complete specification of the subsystem in accordance with the objectives set out in Development
- analysis as specified
- Test Integration of all subsystems
- Design Validation
Within the system design process must take into account the effects that can produce the new system on the environment in which to function, adapting the design criteria to the characteristics. In this context it is becoming increasingly important adaptation of any system-output the capabilities of people who will use it, so that its operation is simple, convenient, effective and efficient.
of these issues deals with discipline, ergonomics, which aims to optimize human-machine environments. While it was initially focused on the anthropometric aspects of the man-machine has now moved to intervene with force in all cognitive processes (analysis, interpretation, decision, communication and knowledge representation). Thus, with respect to the design of software tools, ergonomics has much to say on issues related to the provision Online information, depth of menus, icons format, command names, cursor control, response times, error handling, data structures, use of natural language, etc.
Source: Daealus. System Design
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