What are the benefits and drawbacks of using standard or generic design records in PPAP?

2 Drawbacks of standard or generic design records

However, standard or generic design records also have some drawbacks that need to be considered. One of the main drawbacks is that they may not capture the unique or specific features, requirements, or expectations of the customer or the product. For example, a standard design record for a bolt might not include the specific coating, hardness, or corrosion resistance that the customer needs for their application. A generic design record for a plastic part might not include the specific molding, assembly, or testing methods that the product requires. In these cases, using a standard or generic design record might result in a product that does not meet the customer's quality standards.

3 Specific and custom design records

A specific and custom design record is a design document that is tailored to the particular product, customer, and application. For example, a specific design record for a bolt might include the exact coating, hardness, and corrosion resistance that the customer specifies for their application. A custom design record for a plastic part might include the detailed molding, assembly, and testing methods that the product requires. Specific and custom design records are usually more accurate and comprehensive because they reflect the product design, dimensions, materials, and performance standards that are relevant and important for the customer and the product.

4 Drawbacks of specific and custom design records

However, specific and custom design records also have some drawbacks that need to be considered. One of the main drawbacks is that they are more time-consuming and costly to create and submit, as they require more customization and documentation. They can also increase the risk of errors, inconsistencies, or misunderstandings because they may not follow a familiar or accepted standard. For instance, a specific design record for a bolt might use a different unit, format, or terminology than the standard design record. A custom design record for a plastic part might use a proprietary or confidential method that the customer does not disclose or share. In these cases, using a specific and custom design record might result in a product that does not comply with the supplier's quality system, processes, or capabilities.

5 How to decide which option to use

When deciding whether to use a standard or generic design record or a specific and custom design record in PPAP, several factors must be considered, including the complexity and uniqueness of the product, the customer's specifications and requirements, the supplier's quality system and capabilities, and the level of risk and liability involved. Generally speaking, a standard or generic design record should be used if the product is simple, common, or widely used and the customer's specifications are general, basic, or standard. On the other hand, a specific and custom design record should be used if the product is complex, unique, or customized and customer requirements are specific, detailed, or critical. It is important to consult with the customer to agree on the design record format, content, and level of detail before submitting it for PPAP approval. Additionally, make sure to review and verify the design record for accuracy prior to submission and document any deviations from it before proceeding with production.

6 Here’s what else to consider

This is a space to share examples, stories, or insights that don’t fit into any of the previous sections. What else would you like to add?