Specifically, it consists of the iterative cycle: design, test, debug, and redesign. Of course, nothing works the first time, so this part of the process tends to be more iterative than the other phases. The solution may be a tangible working prototype or an intangible working simulation. The purpose of development is to generate the engineering documentation: schematics, drawings, source code, and other design information into a working prototype that demonstrates the solution to the problem. Specifications are detailed using a number with associated units, e.g., 4 volts, or 3.82 inches, or 58 Hz, or a completion time of 22 days. Some call this phase “design planning” and the development phase “detailed design.” But no matter what it is called, the purpose of this phase is to translate the customer requirements and systems engineering model into engineering specifications that an engineer (designer) can work with to design and build a working prototype. The design phase is where “the rubber meets the road.” Details are specified specifications are established. A system engineering diagram establishes all the inputs and outputs for each module, as well as the way in which the module transforms the inputs into outputs. This diagram shows the solution as an interconnection of smaller and less complicated sub-systems. One critical tool of the planning phase is the system engineering diagram. Many tools are used to convey this information to team members and other stakeholders including Gantt and Pert charts, resource loading spreadsheets, sketches, drawings, proof-of-concept models to validate that the project can be successfully completed. The planning phase is about defining the implementation plan: identifying the people, tasks, task durations, task dependencies, task interconnections, and budget required to get the project done. The concept phase ends with a selection of a single concept. Typical design judgment and compromise are required to merge concepts. The numerous concepts are generated using brainstorming techniques, which are review sessions in which elements of one concept are recombined with elements from other in an effort to find a single concept that fits best. The concept phase is about generating numerous models (mathematical, physical, simulation, simple drawings or sketches), all of which should convey that the solution meets the customer’s expectations or requirements. The most critical part of the idea phase is to define the problem, validate its value, and identify the customer who desires its solution. Feasibility may be high, medium, or low: where high feasibility means that people, technology, and time resources are readily available or known medium is that resources may not be available directly, but can be found and low means the resources may be rare or do not exist. Feasibility serves as a check on whether the idea can be realized. Viability suggests that there is significant value (or demand in the case of product development) in pursing the solution. The problem statement is typically only vaguely defined and requires research into its viability and its feasibility. The idea phase usually begins with a problem. The engineering method by nature is an iterative process. The development step is often divided to include the iterative cycle of build, test, debug, and redesign. The engineering method has six steps (or phases): The engineering method (design) is a systematic approach used to support an engineer or project team in reaching the desired solution to a problem, which has been specified by customers, sponsors, or stakeholders who perceive value in resolving the problem.Įngineering Method. There are six steps (or phases): idea, concept, planning, design, development, and launch from problem definition to desired result. The engineering method (also known as engineering design) is a systematic approach used to reach the desired solution to a problem.
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