Identify the stage of the design process where the industrial engineer becomes involved, and describe how he or she contributes to the process.

The stage of the design process where the industrial engineer becomes involved is the define or design definition stage

Explanation:

The process for Design For Six Sigma, (DFSS), and also in the process for solving design problems there are similar process stages such as the Define, Measure, Analyze, Design, Verify, DMADV, stages in six sigma and Define, Gather, Generate, Analyze, Test in the design for problem solving    

The point at which the industrial engineer becomes involved is the definition stage or point where the designer's abstract idea is developed and clearly defined by following a series of step wise processes which requires project management, engineering economics, industrial quality control and engineering management skills.

The engineering design process is a series of steps that engineers follow to come up with a solution to a problem. Many times the solution involves designing a product (like a machine or computer code) that meets certain criteria and/or accomplishes a certain task. This process is different from the Steps of the Scientific Method, which you may be more familiar with. If your project involves making observations and doing experiments, you should probably follow the Scientific Method. If your project involves designing, building, and testing something, you should probably follow the Engineering Design Process. If you still are not sure which process to follow, you should read Comparing the Engineering Design Process and the Scientific Method.

do you have any options?