Design for Excellence (aka Design for X, DFX) is a systematic approach to achieve a targeted objective. X represents targeted objectives or characteristics of product or process. DFX comes under the topic of DFSS which requires a cross-functional team approach with the involvement of stakeholders.

In order to stay successful in the marketplace, companies need to meet customer expectations . Continuous feedback mechanisms should inform efforts to understand and solve these demands.

Typical Design for X (DFX) considerations:

  • cost
  • quality
  • reliability
  • recyclability

Types of Design for X (DFX)

Design for Manufacturing/Assembly (DFM & DFMA)

Design for Manufacturing (DFM) deals with steps for improving manufacturing process to make a good product with reduced manufacturing cost. Product design can be optimized to achieve this goal.

Potential DFM factors:

  • materials
  • tooling
  • environment
  • testing
  • tolerances

Design for Cost and Design to Cost (DTC)

Low cost cannot be managed into a product; it must be engineered into a product. This can be challenging when a company has a fixed design cost yet still has to meet customer expectations.

Design for cost and DTC consist of several life cycle cost controlling techniques. Designing for cost works on engineering principles but DTC is more related to management requirements.

DTC uses value analysis (aka Design to Value) to quantify the value that can be delivered to the customer. Redesign and reworking costs should be considered.

Design for Testing/Testability (DFT)

Testing is a major part in in the process to ensure that products have predetermined quality standards demanded by the customers. In this stage the team has to design steps that required for validating the product to ensure that it doesn’t have any defects and it is properly functioning.

Design for Maintainability (DFM)

Maintainability is how easily a product can be maintained. Here, the design team give attention to reducing maintenance costs. Eg preventive maintenance and corrective maintenance.

Design for Robustness

Robustness is the ability of the system to reduce variations while delivering defined outputs. Chief considerations here are structural and environmental.

Design for Supply Chain (DFSC)

Target here is to design a system with high supply chain efficiency, less inventory cost and less or zero waste. Error detection should be considered in the design step.

Design for Safety

This is one of the important design aspects which every team has to be focused on. Not only do strict safety regulations and requirements mandate safety standards, employee engagement demands it.

DFS helps to bring illness & injuries to a minimum while maintaining productivity. Common techniques could be as simple as adequate usage of personal protective equipment (PPE).

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Comments (8)

Being not from manufacturing background, at first it was difficult.. However, with explanation above, it is clear and concept understood.. Thanks.

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