By the end of this topic, you should be able to...
outline each stage of the design process (empathize; defining the project; ideation and modelling; designing a solution; presenting a solution).
Guiding Question
How do designers approach problem-solving?
What Is the Design Process?
Have you ever used a product and thought, "This is so hard to use — someone must have designed it this way!" Maybe a bottle that won't open easily, a door handle that's confusing to push or pull, or a smartphone that's impossible to navigate without perfect eyesight.
Designers ask these same questions — and then they do something about it.
The design process is the structured journey a designer takes from deeply understanding a problem to presenting a solution that genuinely works for people. It is not a straight line from problem to answer. Instead, it is a flexible, human-centred sequence of stages — each one building on the last.
Think of it like this: a designer is part detective, part storyteller, part maker. They investigate human problems, build creative responses, and communicate their ideas with clarity and purpose.
The Five Stages of the Design Process
Stage 1: Empathize
What does it mean to empathize?
Before a designer picks up a pencil or opens a computer, they must first deeply understand the people they are designing for. This is called empathy — the ability to understand and share the feelings, experiences, and challenges of another person.
In design, empathizing means the following:
Observing how people interact with products and environments
Interviewing users to understand their needs, frustrations, and desires
Experiencing the problem yourself where possible
Why does this matter? Without empathy, designers make assumptions. Assumptions lead to products that don't actually solve real problems.
Real-World Example: Designing the OXO Good Grips Peeler
In the late 1980s, designer Sam Farber watched his wife — who had mild arthritis — struggle painfully to use a standard metal vegetable peeler. Instead of assuming he knew the solution, he spent time observing and speaking with people who had limited hand strength and dexterity.
This deep empathy revealed that the problem wasn't just about arthritis — most people found thin, hard kitchen tool handles uncomfortable. By truly understanding the user, Farber's team designed a product that worked better for everyone. This is the foundation of Universal Design — designing for the full range of human ability.
Stage 2: Define the Project
What does it mean to define the project?
After gathering empathy research, the designer organises everything they've learned into a clear, focused problem statement. This stage is about moving from broad observations to a precise understanding of:
Who the design is for
What problem needs to be solved
Why this problem matters
What constraints (limits) the solution must work within
The output of this stage is typically a Design Brief and a Design Specification—documents that set the boundaries and success criteria for the design.
Why does this matter? A well-defined problem is a problem that can actually be solved. Vague problems lead to vague solutions.
Real-World Example: Designing the Friendly Village Playground
When landscape architects were commissioned to redesign public playgrounds in several European cities, they didn't just start sketching equipment. They first defined the project by analysing who used the spaces — children with and without physical disabilities, parents, elderly visitors, and carers.
The defined problem became: "How might we create a play environment that is equally engaging, safe, and accessible for children of all physical abilities?"
This clear definition led to the development of inclusive playground equipment — such as wheelchair-accessible roundabouts, sensory play panels, and ground-level water features — now adopted globally as universal design standards.
Stage 3: Ideation and Modelling
What does it mean to ideate and model?
With a clearly defined problem, the designer now enters the most creatively energetic stage — ideation. This is where ideas are generated freely and rapidly without immediate judgement. The goal is quantity over quality at first — the more ideas generated, the greater the chance of finding something truly innovative.
Ideation techniques include:
Sketching — quick, rough drawings to capture ideas visually
Brainstorming — generating as many ideas as possible in a short time
Mind mapping — connecting related ideas visually
SCAMPER — a structured thinking tool to modify existing ideas
After ideation, promising ideas are developed into models — physical or digital representations that allow the designer to test how an idea works in three dimensions. Models don't need to be perfect — they need to be testable.
Why does this matter? Ideas that only exist in your head cannot be tested. Modelling transforms thinking into something tangible that can be evaluated and improved.
Real-World Example: Designing the Nest Learning Thermostat
When Tony Fadell and his team at Nest were developing a smarter home thermostat, they generated dozens of conceptual directions before settling on a circular, dial-based interface. Early models were made from simple cardboard and foam — just enough to test how the shape felt in a user's hand and how intuitive the interaction was.
This rapid, low-cost modelling process allowed the team to test multiple ideas quickly before committing to expensive manufacturing. The result was a thermostat that anyone could use intuitively, regardless of technical knowledge — a universal design success.
Stage 4: Design a Solution
What does it mean to design a solution?
This stage takes the most promising ideas from ideation and modelling and develops them into a refined, detailed design solution. The designer now focuses on:
Selecting the best concept based on testing and feedback
Developing the design in detail — dimensions, materials, manufacturing methods, and finishes
Testing the solution against the design specification established in Stage 2
Iterating — making improvements based on what testing reveals
This is the stage where the design becomes increasingly realistic and resolved. It often involves multiple rounds of refinement before the solution truly meets the needs identified during empathy research.
Why does this matter? A solution is only as good as how well it meets the original human need. Rigorous development and testing ensures the design truly works.
Real-World Example: Microsoft's Adaptive Controller
Microsoft's Xbox Adaptive Controller was designed for gamers with limited mobility. During the design solution stage, the team worked closely with disability organisations, testing multiple versions of the controller with real users who had diverse physical needs.
The controller went through numerous design iterations — button sizes, port placements, and surface textures were all refined through repeated rounds of testing and improvement. The final product was not the first design — it was the result of a disciplined, human-centred development process.
Stage 5: Present a Solution
What does it mean to present a solution?
The final stage of the design process is communication. A brilliant design that cannot be clearly communicated to others—clients, manufacturers, users, or stakeholders—cannot be realized.
Presenting a solution involves:
Technical drawings — precise, scaled representations of the design for manufacturing
Presentation renderings — visually polished, realistic illustrations that communicate the design's appearance and function
Prototypes — physical or digital models that demonstrate how the design works
Verbal and written explanations — articulating the design decisions made and how the solution addresses the original problem
Why does this matter? Design is a form of communication. Presenting your solution with clarity and professionalism ensures that your design intent is understood — and can be brought to life.
Real-World Example: Dyson's Accessible Vacuum Cleaner Presentations
When Dyson develops new products with universal design features—such as lightweight construction and ergonomic handles to assist older users—their design teams produce highly detailed presentation renderings and prototypes before any product reaches manufacturing.
These presentations don't just show what the product looks like—they communicate why every design decision was made, connecting each feature back to a human need identified during the empathy stage.
How the Five Stages Connect
It is important to understand that these five stages do not always flow in a perfect sequence. In real design practice, designers often move back and forth between stages as they learn new information.
For example:
Testing a model in Stage 3 might reveal a misunderstanding of the user—sending the designer back to Stage 1 to re-empathise
A presentation in Stage 5 might receive feedback from a client that redefines the project—returning the designer to Stage 2
This flexible, responsive approach is what makes the design process powerful—it is built to adapt to new understanding.
Key Takeaway
The design process is a five-stage, human-centred framework that guides designers from deeply understanding people's needs to communicating a refined solution. The five stages — Empathise, Define the Project, Ideation and Modelling, Design a Solution, and Present a Solution — are interconnected and iterative. The strongest designs emerge when designers genuinely understand the people they are designing for, clearly define the problem, explore ideas creatively, refine solutions through testing, and communicate their design with clarity and purpose.
Practical Application
Every stage of the design process maps directly onto your Internal Assessment (IA):
Design Process Stage | Your IA Connection |
|---|---|
Empathize | Client interview, user observation, contextual research |
Define the Project | Design brief and design specification |
Ideation and Modelling | Concept generation, sketching, initial modelling |
Design a Solution | Iterative development, testing, and refinement |
Present a Solution | Final presentation drawings, renderings, and prototype |
IA Criteria Connection
Criterion | Design Process Stage |
|---|---|
Criterion A — Analysis of a Problem | Empathize + Define the Project |
Criterion B — Conceptual Design | Ideation and Modelling |
Criterion C — Development of a Prototype | Design a Solution |
Criterion D — Testing and Evaluation | Design a Solution (testing component) |
Criterion E — Evaluation of the Solution | Present a Solution |
💡Student Tip
Examiners want to see clear evidence of each stage in your IA. Don't skip straight to making — show your empathy research, your defined problem, your ideation exploration, and your iterative development. A design journey with visible stages is a design journey that earns marks.
Sources
Brown, Tim. Change by Design: How Design Thinking Transforms Organizations and Inspires Innovation. HarperBusiness, 2009.
Cross, Nigel. Design Thinking: Understanding How Designers Think and Work. Berg Publishers, 2011.
International Baccalaureate Organization. Design Technology Guide. International Baccalaureate Organization, 2014.
Lawson, Bryan. How Designers Think: The Design Process Demystified. 4th ed., Architectural Press, 2006.
Norman, Donald A. The Design of Everyday Things. Rev. ed., Basic Books, 2013.
Ulrich, Karl T., and Steven D. Eppinger. Product Design and Development. 6th ed., McGraw-Hill Education, 2015.
Cross-reference: B2.1.8 problem definition anchors the process; B2.1.11–B2.1.12 for iteration within the process cycle.
Linking Questions
What ergonomic considerations are important to be able to engage successfully with the design process? (A1.1)
How do design technology students ensure they engage with user-centred research methods? (A2.1)
To what extent are the goals of the design process aligned with the goals of a user-centred design (UCD) process? (B1.1)
To what extent does the model, test, refine cycle require full engagement with modelling and prototyping at several levels of fidelity? (B2.2)
Which aspects of the design process require engagement with material selection? (B3.1)
How do the requirements of the design process ensure students are addressing the responsibility of the designer? (C1.1)
Why is product analysis and evaluation important in the design process? (C3.1)
To what extent does the design process require the exploration of design for manufacture strategies? (C4.1)