Investigation using secondary data (AQA GCSE Design and Technology): Revision Notes
Investigation using secondary data
What is secondary data investigation?
Secondary data investigation is the process of researching and analysing existing products that are similar to what you want to design. This approach helps you understand what works well and what doesn't in current market solutions, providing valuable insights that can improve your own design development.
When creating new products, studying what already exists saves time and helps you avoid repeating common mistakes. It also reveals opportunities for innovation and improvement that you might not have considered otherwise.
This research method is particularly valuable because it's based on real-world evidence from products that have already been tested in the marketplace, rather than purely theoretical concepts.
Why analyse existing designs?
Examining existing products serves several crucial purposes in the design process. It helps you identify both successful features and problematic areas in current solutions, which can directly inform your design decisions. Additionally, it gives you realistic insights into user expectations, market standards, and proven manufacturing approaches.
By building on proven solutions rather than starting from scratch, you can save development time while still creating innovative improvements. This approach also helps you understand realistic user expectations and appropriate price points for your target market.
Framework for systematic product analysis
When investigating existing designs, you should evaluate them across twelve key categories to ensure comprehensive analysis. This systematic approach prevents you from overlooking important factors that could significantly impact your design success.
Function and purpose
Examine what the product is designed to accomplish and how effectively it meets its intended goals. Look for measurable performance indicators and consider whether the product fulfils user needs efficiently and reliably.
Safety considerations
Evaluate how safety has been integrated into the design, both during manufacturing and throughout the product's lifespan. Consider potential hazards and assess how well the design addresses safety concerns through features, materials, or construction methods.
Safety should never be compromised for cost or aesthetic reasons. Always identify potential hazards and evaluate how well the design addresses safety concerns.
Environmental impact
Assess the product's sustainability profile, including materials used, manufacturing processes, and end-of-life considerations. Think about whether more environmentally friendly alternatives could be implemented without compromising functionality.
Aesthetic design
Analyse visual elements such as shape, form, colour, and texture. Consider how appearance affects user appeal and market success, and whether aesthetic choices support or hinder the product's functionality.
Ergonomics and human factors
Examine how well the product accommodates human physical characteristics and capabilities. Consider dimensions, accessibility for different users, comfort levels, and factors like temperature sensitivity or colour perception that affect user interaction.
Cost analysis
Evaluate material costs, manufacturing expenses, and market pricing strategies. Consider whether the product offers appropriate value for money and how cost affects accessibility for the target market.
Material properties
Analyse the mechanical and physical characteristics required from the materials and assess how suitable the chosen materials are. Consider properties like strength, durability, flexibility, and resistance to wear or environmental conditions.
Construction methods
Examine manufacturing and assembly processes, considering production scale, efficiency, and quality control measures. Think about how construction methods affect product consistency and manufacturing costs.
Social factors
Consider the target demographic and specific user groups, including considerations for disabilities, age ranges, or cultural backgrounds. Evaluate how social trends and values influence design acceptance.
Ethical considerations
Assess factors related to responsible sourcing of materials and fair manufacturing practices. Consider the broader social impact of the product and its production chain.
Cultural influences
Examine how fashion trends, cultural beliefs, and regional preferences affect product design and market acceptance. Consider adaptability to different cultural contexts.
Finishing treatments
Analyse surface treatments and protective finishes, considering both functional benefits and aesthetic enhancement. Evaluate the level of protection provided and long-term maintenance requirements.
When analysing products, it's helpful to group these 12 categories into clusters: Technical factors (function, safety, materials, construction), Human factors (ergonomics, aesthetics, social), and Contextual factors (environment, cost, ethics, culture, finishing).
Worked example: School stool analysis
Worked Example: Analysing a School Laboratory Stool
Step 1: Evaluate user suitability
- Materials allow for easy cleaning (essential in school environment)
- Robust construction safely supports student weight
- Affordable pricing makes it viable for educational budgets
Step 2: Assess ergonomic factors
- Stool height works appropriately for students
- Fits under laboratory benches effectively
- Rounded corners enhance safety and comfort
Step 3: Identify trade-offs
- Solid timber construction provides durability but makes stool heavy to move
- Simple design keeps costs low but limits adjustability features
This systematic evaluation helps you understand the reasoning behind specific design choices and how they contribute to the product's effectiveness in its intended setting.
Practical application benefits
Secondary data investigation becomes most valuable when you apply these analytical skills across different product types. For instance, when examining a sports bag, you would evaluate specifications like dimensions, materials, and features against user requirements and market expectations.
This investigation process helps you make more informed design decisions by learning from existing solutions. You might discover successful design approaches that could be adapted for your project, or identify persistent problems that your design could address more effectively.
Research shows that designers who systematically analyse existing products before starting their own designs are significantly more likely to create successful, market-ready solutions.
Key Points to Remember:
- Secondary data investigation involves studying existing products to identify successful features and areas for improvement before developing your own design solution
- Use the twelve-category framework systematically covering function, safety, environment, aesthetics, ergonomics, cost, materials, construction, and social/cultural factors for thorough analysis
- Real-world product examples provide practical insights that can guide your design decisions and help you understand what works in actual market conditions
- Systematic evaluation helps you learn from proven solutions while identifying opportunities for innovation and improvement in your own designs
- This research approach saves development time and improves outcomes by building on existing knowledge rather than starting completely from theoretical concepts