Se system

Design Changes as a Function of Time from American and Japanese Automobiles (American Suppliers Institute)

Figure 5.

Resolve any discrepancy of performance with requirements. In INCOSE, ed2007).

7LPI. Notice also that boxes on the same horizontal level on the left and right side are at the same level in a system hierarchy. Fabricate and procure hardware after successful review. (Lucent Technologies, 1997).

15Moore, R.C. Characteristics of a successful space system engineer.

Preliminary design

Systems engineering is still heavily involved but this is the phase where the subsystems participation and manpower loading increases dramatically. Often these parts are not properly accounted for in the early design, but can cause major problems (particularly in the mass budgeting).

Phase 2.

The Space Shuttle is considered one of the most complex systems every made, while a refrigerator is not a particularly complex system. Mission objectives are statement(s) that clearly document the goal(s) and constraint(s) of the mission. Systems engineering is about getting the right design……I like to think of systems engineering as being fundamentally concerned with minimizing, in a complex artifact, unintended interactions between elements desired to be separate….Systems engineering seeks to assure that elements of a complex artifact are coupled only as intended…..Educators …..are far less certain how to teach "generalship" than we are of how to teach the laws of thermodynamics.

For example, phase B and Phase D(2) both operate on the subsystems level. Phase B is concerned with the subsystem level architecture (block diagram), requirements and a subsystem verification plan, whereas Phase D(2) is concerned with building the subsystems and verifying using the Phase B verification plan. Verification plans (discussed below) are test plans written during the formulation phases, and verified (i.e.

Activities, such as analyzing alternative methods for production, testing, and operations, are part of SE planning and analysis functions. (Function 2, 3, 6): The detailed design effort for each subsystem is primarily performed by the subsystem design engineering teams later in Phase C. However in a student project the subsystem design engineering teams are the ones exploring design alternatives at the subsystems level, addressing unresolved technology issues, defining some subsystem details (e.g.

the MCR with the SDR, and/or the PDR with the CDR. Each review should include a Power Point presentation, plus a formal, fully-detailed report.
Phase 1. The following section is a “short and sweet” version of system’s engineering prepared by Dick Cook. The phases of the simplified process presented here match NASA’s approach.

An example of a large scale, multi-million dollar, multi-disciplinary project is the creation and operation of the Space Shuttle Transportation System. A refrigerator is a simple system which could be designed using systems engineering.