問28
頻出度★★☆
コンカレントエンジニアリングの目的として, 適切なものはどれか。
平成24年度 秋期 ITパスポート試験 問28
This question's explanation and your answers so far.
解説
問 28
- ア
正解 The correct answer is ア, “Shortening the development period.” In concurrent engineering, the word concurrent means “running in parallel at the same time.” It is a development method in which the stages of product development — design → prototyping → production preparation → manufacturing → sales — that used to be carried out serially (one after another) are instead advanced in parallel as far as possible by a cross-functional team that shares design information. Because production engineering, purchasing, quality assurance, sales and other departments take part from an early stage without waiting for the design to be finished, (1) the stages overlap, so the overall lead time becomes shorter, and (2) problems such as a design that is hard to manufacture or a part that is hard to procure can be found upstream, so design changes coming back from later stages (rework) decrease. These two effects combine to shorten the development period up to product launch. As a result it also leads to cost reduction and earlier market entry (a shorter time to market), but the most appropriate direct purpose of the method is shortening the development period.
Incorrectイ
Standardizing the developed technology is an activity for unifying specifications and procedures inside and outside the company so as to secure compatibility, quality and reusability (standardization, and gaining a de facto standard or a de jure standard). Its purpose is different from that of concurrent engineering, which runs the stages in parallel. Developing in parallel does not in itself standardize a technology.
Incorrectウ
Developing products that leverage the company's own technical strengths is the idea of core competence management, which builds the business around a core strength that other companies cannot imitate. That is a question of business strategy — “which strength to develop with” — not the purpose of concurrent engineering, which is a development method about “how to advance the development stages.”
Incorrectエ
Improving the yield rate of the production process (raising the proportion of good products relative to the quantity put in) is a purpose handled by quality control and process improvement in the mass-production stage (TQM, QC activities, production control). Concurrent engineering is a method for shortening the development lead time until a product reaches the market; raising the good-product rate of the manufacturing line itself is not its direct aim.
ここがポイント
- Concurrent engineering = a product development method in which stages such as design, prototyping, production preparation, procurement and sales are advanced in parallel by cross-functional teams that share information. The aim is to shorten the development period (lead time) and to reduce rework and cost by finding problems upstream.
- Separate the confusing choices by the field each one belongs to. Standardization is an activity for securing compatibility and quality, core competence is a business strategy built around one's own strengths, and improving the yield rate is quality and production control in the mass-production stage — none of them shares the purpose of running development stages in parallel.
用語