Guide for D2
5W2Hは「誰が、何を、どこで、いつ、なぜ、どのように、どのくらい」の略です。これにより曖昧さのない正確でデータに基づいた問題記述が作成されます。...
Is/Is-Not分析は問題が「何であるか」と「何でないか」を比較します。この対比により影響を受けていない変数を除外し即座に調査範囲を絞り込みます。...
D2で問題を適切に記述することでD4の根本原因調査時間を最大80%短縮できます。...
8D.wiki — How Do You Describe a Problem So It Actually Gets So...
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The 8D (Eight Disciplines) problem-solving methodology is the global standard for quality engineering under IATF 16949. It guides teams through D0 (Preparation and Emergency Response), D1 (Cross-Functional Team Formation), D2 (Problem Description using 5W2H), D3 (Interim Containment Actions), D4 (Root Cause Analysis), D5 (Permanent Corrective Action Verification), D6 (Implementation of Corrective Actions), D7 (Recurrence Prevention), and D8 (Team Recognition and Closure). Each discipline provides a structured approach to identifying root causes, implementing effective solutions, and preventing recurrence.
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