What design strategies do designers use to generate and develop ideas, and why is design an iterative process?
Design strategies and the iterative design process: investigation, primary and secondary research, collaboration, user-centred design, avoiding design fixation, and the explore, create and evaluate cycle that develops a product through testing and feedback.
A focused answer to Eduqas GCSE Design and Technology (C600) on design strategies and the iterative design process: investigation, user-centred and collaborative design, avoiding design fixation, and the iterate-and-test cycle that improves a product.
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What this dot point is asking
Eduqas C600 expects you to understand the design strategies designers use to generate and develop ideas, and why design is an iterative process. You need to know about investigation and research, user-centred and collaborative design, avoiding design fixation, and the explore, create and evaluate cycle. In the written exam this is tested by Explain questions on what the iterative process is and on the benefits of user-centred design.
Design strategies
- User-centred design puts the user at the centre: their needs, abilities and feedback shape every decision, gathered through interviews, observation, questionnaires and testing prototypes with real users.
- Collaboration brings together people with different skills (designers, engineers, marketers, users) so a product benefits from many viewpoints.
- Avoiding design fixation means not becoming stuck on the first idea. Designers deliberately generate many ideas, take inspiration from other fields, and seek feedback so a better solution is not missed.
The iterative design process
- Explore. Investigate the context, the user and existing products, and write a design brief and specification.
- Create. Generate, develop, model and make ideas, communicating them through sketches, drawings, CAD and prototypes.
- Evaluate. Test the work against the specification and the user, then feed what is learned back into the next round.
You go round this loop many times, each pass improving the product. The key exam idea is that real testing reveals problems that are then designed out, so iteration produces a better-resolved final outcome than a single linear march from brief to product.
Try this
Q1. State one method a designer could use to gather the views of real users. [1 mark]
- Cue. Interviews, questionnaires, observation, or testing a prototype with users.
Q2. Name the three stages of the iterative design cycle. [1 mark]
- Cue. Explore, create and evaluate.
Exam-style practice questions
Practice questions written in the style of WJEC Eduqas exam questions on this dot point, with worked answer explainers. The year tag is the paper they imitate, not the source.
Eduqas C600 20193 marksExplain what is meant by the iterative design process.Show worked answer →
A 3-mark Explain wants the cycle defined and a reason it improves a product.
The iterative design process is a repeating cycle rather than a single straight line: a designer explores a need, creates and models an idea, then evaluates and tests it against the specification and the user, and feeds what is learned back into the next round of exploring and creating.
Each pass improves the product because real testing reveals problems that are then designed out, so the final outcome is better resolved than a first idea taken straight to manufacture.
Markers reward the idea of a repeating loop (explore, create, evaluate), the role of testing and feedback, and that it leads to improvement. Describing a one-off linear sequence (brief to product) does not show the iterative idea and caps the mark.
Eduqas C600 20224 marksExplain two benefits of using user-centred design when developing a new product.Show worked answer →
A 4-mark Explain wants two developed benefits tied to the user.
Benefit 1, fitness for purpose. Involving real users (through interviews, observation and testing) means the product is designed around their actual needs and abilities, so it does the job they want and is more likely to sell.
Benefit 2, usability and inclusion. Testing with users reveals problems with comfort, size or controls early, so the product can be made easier and safer to use, including for users with different needs, improving ergonomics and accessibility.
Markers reward two developed points that connect involving the user to a better product (more fit for purpose, more usable, more inclusive). Two bare statements such as "it suits the user" with no development cap the mark at two.
Related dot points
- Investigating needs and writing a design brief and specification: identifying the primary user and wider stakeholders, primary and secondary research, analysing existing products, and writing measurable design and manufacturing specification criteria.
A focused answer to Eduqas GCSE Design and Technology (C600) on investigating needs and writing a brief and specification: primary and wider stakeholders, primary and secondary research, product analysis, and measurable specification criteria.
- Anthropometrics and ergonomics: using anthropometric data and percentile ranges to size a product, designing for the human user, inclusive and accessible design, and how ergonomics affects comfort, safety and ease of use.
A focused answer to Eduqas GCSE Design and Technology (C600) on anthropometrics and ergonomics: using anthropometric data and percentile ranges to size a product, inclusive design, and how ergonomics shapes comfort, safety and ease of use.
- Communicating design ideas: freehand sketching, 2D and 3D pictorial drawing (isometric and perspective), exploded and assembly drawings, working (orthographic) drawings with dimensions, and computer-aided design (CAD).
A focused answer to Eduqas GCSE Design and Technology (C600) on communicating design ideas: freehand sketching, isometric and perspective drawing, exploded and working (orthographic) drawings, and CAD, with the strengths of each.
- Investigating the context and user in the NEA: primary and secondary research, identifying the user and wider stakeholders, analysing existing products, and writing a design brief and a measurable specification that the project will be judged against.
A focused answer to Eduqas GCSE Design and Technology (C600) on investigating the context and user in the NEA: primary and secondary research, the user and stakeholders, product analysis, and writing a brief and measurable specification.
- Generating, developing and modelling ideas in the NEA: producing a range of design ideas, developing the best against the specification, using modelling and prototyping to test ideas, communicating with sketches, drawings and CAD, and planning manufacture.
A focused answer to Eduqas GCSE Design and Technology (C600) on generating, developing and modelling ideas in the NEA: producing a range of ideas, developing against the specification, modelling and prototyping, and planning manufacture.
Sources & how we know this
- WJEC Eduqas GCSE (9-1) Design and Technology (C600) specification — WJEC Eduqas (2017)