ISO 9001 Clause 8.3.4 focuses on Design and Development Controls, ensuring that processes are in place to guarantee the quality and conformity of products and services.
ISO 9001 Clause 8.3.4 Design and Development Controls
This ISO clause defines the design and development controls a company puts in place to ensure it delivers what was promised. These controls consist of design review, conducting various tests, and building various prototypes (as needed) to prove the design is ready for production.
Example Design and Development Control Activities
- Defined Results: The organization must clearly define the results expected from the design and development process. This sets the criteria for evaluating the subsequent stages.
Design and Development Reviews: Regular reviews must be conducted to assess whether the design and development process results align with the specified requirements. This ensures ongoing alignment with the project goals. - Verification Activities: Activities must be in place to verify that the design and development outputs meet the input requirements. This involves testing or checking that what was planned has been correctly implemented and maintaining the documented information as evidence of conformance.
- Validation Activities: The organization needs to conduct validation activities to ensure that the resulting products and services meet the specified application or intended use. This involves confirming that the end product functions as intended through field testing or customer acceptance testing and maintaining the documented information as evidence of conformance.
- Problem Resolution: If issues are identified during reviews, verification, or validation, necessary actions must be taken to address and resolve them.
Documented Information: The organization must retain documented information regarding these activities. This documentation proves that the necessary controls were applied throughout the design and development process.
Note on Reviews, Verification, and Validation: These activities serve distinct purposes and can be conducted separately or in various combinations based on the organization’s needs.
What is the Difference Between Design Verification and Validation
Design verification and validation are critical processes in the product development lifecycle, especially in engineering, manufacturing, and software development industries. While they are often mentioned together, they serve distinct purposes and occur at different stages of the development process.
Here are the key differences:
Design Verification
Design verification aims to ensure that the product design meets the specified requirements. It checks if the product has been designed correctly according to the specifications and design documents to answer the question, “Are we designing the product right?”
Design verification typically involves internal processes and is conducted by the development or quality assurance teams. The outcome is to confirm that the design outputs meet the design inputs, which is done by comparing the design inputs to the design outputs and noting the method of verification (test performed).
Design Verification Activities
- Design Reviews
- Inspections
- Simulations
- Testing (e.g., unit testing, integration testing)
Design Validation
Design validation ensures that the final product meets the needs and expectations of the actual users in the field. It checks if the right product has been built correctly and fulfills its intended purpose in the real world. To answer the question, “Are we building the right product?”
Design validation often involves external processes, including user or stakeholder feedback. The Outcome is to confirm that the product meets the user’s needs and requirements, often leading to product acceptance.
Design validation Activities
- User acceptance testing
- Field testing
- Beta testing
- Pilot runs
- Prototyping and user feedback sessions
Summary of Differences Between Design Verification and Design Validation
| Aspect | Design Verification | Design Validation |
|---|---|---|
| Purpose | Ensure design meets specifications | Ensure product meets user needs |
| Focus | Designing the product right | Building the right product |
| Questions Addressed | “Are we designing the product right?” | “Are we building the right product?” |
| Activities | Reviews, inspections, testing | User acceptance testing, field testing, prototypes |
| Nature | Internal processes | External processes, user feedback |
| Outcome | Design outputs meet design inputs | Prototype product meets user needs and requirements |
Verification is about ensuring the product is designed correctly according to specifications, while validation is about ensuring the product fulfills its intended use and meets user expectations. Both processes are essential for delivering a high-quality, functional product.
Example of a Software Development Company Implementing Clause 8.3.4
Defined Results: The software company defines the expected results of its design and development process, such as creating a new software application that meets specific user requirements, has minimal bugs, and is scalable for future updates.
Design and Development Reviews: During regular design and development reviews, teams assess progress and ensure that the software design aligns with the initial specifications. For instance, a midway review might identify that a certain feature needs adjustment to meet user expectations.
Verification Activities: involve testing individual software components to confirm they meet the intended requirements. This includes code reviews, unit testing, and integration testing to ensure that each part functions correctly and as intended.
Validation Activities: Validation activities ensure the entire software system meets the broader requirements and functions effectively in the intended environment. This might involve beta testing or user acceptance testing (UAT), where the software is tested in a simulated live environment.
Problem Resolution: During a design review, a team identifies a potential security vulnerability in the software. The organization immediately fixes the issue, ensuring the final product is secure and meets all specifications.
Documented Information: All reviews, verification and validation activities, and actions are documented. This documentation includes records of reviews, test results, and any changes made during the design and development process. This paperwork provides evidence of adherence to the established controls and forms the basis of the learning loop for future projects.
This example illustrates how an organization in the software development sector might implement and demonstrate compliance with ISO 9001 Clause 8.3.4.
ISO 9001:2015 Clause 8.3.4 Design and Development Controls
Clause 8.3.4 emphasizes the importance of systematic controls and documentation throughout the design and development process to ensure the quality and conformity of the final products and services.
