How do designers investigate a problem and turn it into a brief and specification?
Identifying needs and wants, the design context and target market, writing a design brief, and producing a design specification with measurable, justified criteria.
A focused answer to the WJEC GCSE Design and Technology content on investigation, covering identifying user needs and wants, the design context and target market, writing a design brief, and producing a measurable, justified design specification.
Reviewed by: AI editorial process; not yet individually human-reviewed
Have a quick question? Jump to the Q&A page
Jump to a section
What this topic is asking
WJEC's designing principles include investigation: understanding a problem, the user and the context, then turning that into a brief and a specification. You need to know how needs and the target market are identified, the difference between a brief and a specification, and what makes a good specification. This is core knowledge across all three routes, and it is the foundation of the NEA.
Identifying needs, context and target market
The design brief
The design specification
Why measurable, justified criteria matter
Vague criteria such as "must be cheap" or "must look nice" cannot be tested, so a designer cannot prove the product succeeds. Measurable points let you check objectively whether the design meets each target, and justifying each point with research keeps the specification driven by real user needs rather than guesswork. The specification then guides idea development and provides the checklist for the final evaluation.
Try this
Q1. State what a design brief is. [1 mark]
- Cue. A short statement of the problem to be solved and who it is for.
Q2. Rewrite the vague point "must be light" as a measurable specification point. [1 mark]
- Cue. For example "must weigh under 300 grams".
Exam-style practice questions
Practice questions written in the style of WJEC exam questions on this dot point, with worked answer explainers. The year tag is the paper they imitate, not the source.
WJEC-style4 marksExplain the difference between a design brief and a design specification, and why each is needed.Show worked answer →
A four mark Explain question. A design brief is a short statement of the problem to be solved and who it is for, setting the overall aim and context (1 mark), needed to give the project a clear starting direction (1 mark). A design specification is a detailed list of measurable criteria the product must meet, such as size, cost, materials, safety and function (1 mark), needed so that ideas can be developed against firm targets and the final product can be tested objectively against them (1 mark). Markers reward the brief-as-aim versus specification-as-measurable-criteria distinction with a reason for each. A common error is to treat the two as the same.
WJEC-style3 marksExplain why a design specification should contain measurable points that are justified.Show worked answer →
A three mark Explain question. A measurable point (for example "must cost under GBP 15" or "must fit a 95th percentile hand") can be tested objectively, so you can prove whether the product meets it (1 mark), unlike a vague point such as "must be cheap" (1 mark). Each point should be justified by the research or user need behind it, so the specification is driven by real evidence rather than guesswork (1 mark). A common error is to write vague, unmeasurable points, or to give criteria with no justification.
Related dot points
- An overview of the Unit 2 non-exam assessment: the design and make task, the iterative stages from investigation to evaluation, and how the work is internally assessed and externally moderated.
A concise overview of the WJEC GCSE Design and Technology Unit 2 non-exam assessment, covering the design and make task, the iterative stages from investigation through design and manufacture to testing and evaluation, and how the work is internally assessed and externally moderated.
- Ergonomics and anthropometrics, the use of body measurement data and percentiles, and how designers apply them to make products comfortable, safe and usable.
A focused answer to the WJEC GCSE Design and Technology content on ergonomics and anthropometrics, covering the difference between the two, the use of body measurement data and percentiles, and how designers apply them to make products comfortable, safe and usable.
- The work of past and present designers and companies, major design movements and styles, and how studying the work of others informs and inspires new design.
A focused answer to the WJEC GCSE Design and Technology content on the work of others, covering the influence of past and present designers and companies, major design movements and styles, and how studying the work of others informs and inspires new design.
- Sustainability and the 6 Rs, the life cycle of a product, the ecological and social footprint of design, and ethical issues such as fair trade and responsible sourcing.
A focused answer to the WJEC GCSE Design and Technology content on sustainability, covering the 6 Rs, the life cycle of a product, the ecological and social footprint of design, and ethical issues such as fair trade, responsible sourcing and the rights of workers.