Concurrent Engineering approach aims to prevent potential problems by promoting the incorporation of downstream concerns into the upstream phases of an ongoing process. Lean Engineering approach means eliminating the waste of time and resources caused by the unnecessary generation of knowledge and complex designs not required and also eliminating time spent on non-value-added activities. Mixing both approaches will yield significant improvements in project performance.
Typical issues that produce waste of engineering:
1. Over-production: Implementing analysis, reports and tests not needed.
2. On Hold: Waiting for decisions or waiting for input.
3. Defective Outputs: Rework due to wrong requirements or input. Errors causing the effort to be redone to correct a problem.
4. Unused employee creativity: Not engaging engineers in process improvements for engineering.
Clues to applying Lean Engineering (LE) + Concurrent Engineering (CE):
1. Focusing on Customer needs (LE).
2. Simplicity in design (LE).
3. Design Reuse & Share of features or attributes (LE).
4. Variability Reduction (LE).
5. Deletion of nonvalue-added activities (LE) : 40%-60% of the typical engineer’s or designer’s time is spent on nonvalue-added activities.
6. Focusing on Value activities (LE), which means apply control on:
• Features and attributes: Satisfy customer needs only.
• Quality: Lack of defects.
• Availability on time: Available when it is needed.
• Cost according to the budget.
7. Enhanced overlapping strategy (CE).
8. Downstream concerns are considered upstream (CE).
9. Implementing Multidisciplinary Concurrent Team (e.g., virtual team) (CE).
10. Implementing early contact with downstream specialists, suppliers and subcontractors (CE).
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