Efficacious design review process including on-the-job training in finding misunderstand errors

The latent problem in the design stage involves unnoticed problems or misunderstood causes of failures. The unnoticed problem can be visualized by the process of the System DRBFM (Design Review Based on Failure Mode) that takes into account the hierarchical structure of products. The misunderstood problems are also visualized by the question by a professional adviser in which involves his important aspects when considers the problems. Afterwards, the contents of the found problems are used to improve Attention in operation, which is the check list of questions, corresponding to the considered failures, that should be asked to designers in next case. The System DRBFM can be regarded as a proactive prevention system by professional adviser, design regulation and attention in operation. This paper proposes an additional function for the System DRBFM. That is an OJT (On-the-Job Training) tool that the professional adviser educates a designer who took misunderstood or unnoticed mistakes in order to timely acquire his lacked knowledge and experiences. To present the effectiveness of this concept, the case study of the design change in a hair drier is illustrated. The application can intelligibly demonstrate the effectiveness of the System DRBFM.