What factors drive how a product is developed, and how are they balanced?
The factors that influence the development of products, including user needs, wants and values, function and purpose, the relationship between form and function (form follows function and form over function), innovation and authenticity, market pull and technology push, fashion and trends, cost and quality, and how designers balance competing factors in a design specification.
A focused answer to the Edexcel 9DT0 content on the factors influencing product development, covering user needs and values, form versus function, innovation and authenticity, market pull and technology push, fashion, cost and quality, and how designers balance them.
Reviewed by: AI editorial process; not yet individually human-reviewed
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What this dot point is asking
Edexcel wants you to explain the factors that influence how products are developed, user needs and values, form and function, innovation, market pull and technology push, fashion, cost and quality, and to discuss how designers balance these competing factors in a specification.
The answer
User needs, wants and values
Function, purpose and the form-function relationship
Function is what the product does; purpose is the job it is bought for. The form-function relationship is a key idea:
- Form follows function (the Modernist principle): appearance is determined by use, with no unnecessary decoration, important for tools, medical and safety products.
- Form over function: appearance, emotion or status drives the design even at some cost to usability, as in fashion, statement furniture or the Juicy Salif squeezer.
Innovation, market pull and technology push
Innovation is doing something genuinely new (a new function, mechanism or experience), while authenticity is originality and honesty rather than copying; both add value and protect a brand.
Fashion, cost, quality and the balancing act
Fashion and trends make products desirable but date them, shortening their life. Cost (to make and to buy) constrains materials and processes. Quality must match the price and market. Add sustainability, ergonomics, safety and legislation, and the designer faces competing demands.
No product can be the cheapest, most sustainable, most innovative, most fashionable and highest quality at once. The specification therefore prioritises the factors that matter most for the target user and market, accepting trade-offs (for example a premium brand prioritises quality and brand over low cost).
Examples in context
Reusable water bottles are classic market pull, designed because consumers demanded an alternative to single-use plastic, whereas touchscreens and OLED displays are technology push, new capabilities that enabled fresh phone and television designs. A surgical instrument is function-led (form follows function), while a designer chair or a fashion trainer leans on form, brand and trend to sell. A budget kettle prioritises low cost and adequate function; a premium one prioritises quality, materials and brand. In every case the specification balances the competing factors for the intended user, which is the reasoning Edexcel wants you to show.
Try this
Q1. State the difference between a user need and a user want. [1 mark]
- Cue. A need is essential to the product's function (it must do this); a want is a desirable but non-essential extra.
Q2. Explain why "form over function" can still produce a commercially successful product. [2 marks]
- Cue. For fashion, lifestyle and statement products, appearance, emotion and status drive desire and sales, so strong form can outsell a plainer but more usable rival.
Q3. Give one example of technology push and explain why it is not market pull. [2 marks]
- Cue. Touchscreens (or OLED): the technology was developed first and then applied to new products, so the capability led the product rather than an existing consumer demand.
Exam-style practice questions
Practice questions written in the style of Pearson Edexcel exam questions on this dot point, with worked answer explainers. The year tag is the paper they imitate, not the source.
Edexcel 20194 marksExplain the difference between market pull and technology push, giving an example of each.Show worked answer →
Award up to two marks for the distinction and up to two for valid examples.
Market pull is when a product is developed in response to a demand or need expressed by consumers or the market: the need comes first and the product is designed to meet it (for example reusable water bottles developed because consumers wanted to cut single-use plastic).
Technology push is when a new technology or material is developed first and then designers find products to apply it to: the technology comes first and creates new possibilities (for example touchscreens or OLED enabling new phone and TV designs, or shape memory alloys finding uses).
Markers reward the clear "need first versus technology first" distinction plus a credible example for each, not just definitions.
Edexcel 20216 marksEvaluate the statement 'form should always follow function' in product design, using examples.Show worked answer →
Extended-response item marked on levels (understanding of form and function, balanced argument with examples and a judgement).
"Form follows function" (the Modernist principle) means a product's appearance should be determined by what it does, so a tool, medical device or kitchen appliance is shaped for use, safety and efficiency, and unnecessary decoration is avoided.
But form over function also has a place: products such as the Juicy Salif squeezer, fashion items or statement furniture are bought largely for their looks, emotional appeal or status, where aesthetics drive sales even at some cost to pure usability. Consumer desire, branding and trends mean form is often a selling point in its own right.
A strong answer argues both sides with examples and judges that the balance depends on the product and market: function-critical products should be function-led, but for many consumer and lifestyle goods form is a legitimate and commercially vital driver, so "always" is too absolute.
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Sources & how we know this
- Pearson Edexcel A-Level Design and Technology: Product Design (9DT0) specification — Pearson Edexcel (2017)