Welcome
From a broad theme to a real engineering problem
In Lesson 01 you explored the engineering project life cycle. The next step is to begin the initiation work properly: research the theme, understand the context and define the problem before generating detailed solutions.
Professional engineers rarely begin with a finished design. They first gather evidence to understand what is happening, who is affected, what the real need is and which constraints may shape the project.
How can an engineer use reliable research to turn a broad theme into a clear, evidence-based engineering problem worth solving?
Learning Outcomes
What should you know and be able to do by the end?
Learning Aim A requires you to research an engineering problem based on a theme and develop evidence that supports possible technical solutions. Strong research now will make later solution development and feasibility work much stronger.
Prior Knowledge Check
Connect Lesson 01 to today's research work
Answer these three questions before beginning the main learning.
Why This Matters
Good engineering starts by understanding the right problem
A project can be technically impressive and still fail if it solves the wrong problem. Weak research can lead to incorrect assumptions, poor requirements, unrealistic costs and solutions that do not meet the needs of the user or customer.
Research reduces uncertainty. It helps engineers understand existing solutions, technical limits, stakeholder expectations, market needs, safety concerns, cost pressures and opportunities for improvement.
A college wants to reduce energy use in an engineering workshop. A student immediately decides to design a wind turbine. What important questions should be researched before deciding that a wind turbine is actually the right solution?
Main Learning Content
A2 • Researching a theme and defining an engineering problem
1 • Theme → Problem
A theme is a broad area of engineering interest. Examples from Unit 5 include power, energy, motion, forces, security, wind turbines, flight and propulsion. A problem is a specific need or challenge within that theme that can be investigated and eventually solved.
Theme
Energy
Click to exploreThis is too broad for a project by itself. You still need to identify a user, context, need and measurable problem.
Research Question
Where is energy being wasted?
Click to exploreResearch may look at electricity consumption, machine idle time, lighting, heating, compressed air, operating patterns and user behaviour.
Engineering Problem
Reduce avoidable workshop energy use without disrupting practical teaching.
Click to exploreThis is more focused because it identifies a context, a need and an important constraint: the workshop must still function effectively.
2 • Research Sources
The Unit 5 specification identifies several useful research tools. A strong investigation normally uses more than one source type so that information can be compared rather than accepted uncritically.
🌐 Internet
Useful for current information, manufacturers, standards organisations, government guidance and technical resources.
📚 Journals & Books
Useful for engineering theory, technical evidence, established methods and research findings.
🗃 Databases
Useful for standards, patents, technical data, academic literature, component information and specialist research.
🏢 Company Information
Useful for existing products, specifications, case studies, processes and commercial context.
👥 Stakeholders
Users, technicians, engineers, customers and tutors can provide first-hand information about needs and practical constraints.
📏 Direct Evidence
Measurements, observations, photographs, tests and surveys can provide project-specific evidence that secondary sources cannot.
3 • Evaluate the Evidence
Do not treat every source as equally reliable. Use the A-R-C-E check below when deciding whether evidence should influence your engineering project.
A • Authority
Who produced the information?
Click for questions- Is the author or organisation identifiable?
- Do they have relevant technical expertise?
- Is it a recognised engineering, academic, industry or government source?
R • Relevance
Does it actually help answer your project question?
Click for questions- Does it relate to your users, technology or context?
- Does it provide information you can use?
- Is the level of detail appropriate?
C • Currency
Is the information sufficiently up to date?
Click for questions- When was it published or updated?
- Has the technology or legislation changed?
- Is an older source still valid for fundamental theory?
E • Evidence
What supports the claim?
Click for questions- Are measurements, data or references provided?
- Can the claim be checked against another source?
- Is the source informing you, selling to you or persuading you?
4 • Turn Research into a Problem Statement
- Who experiences the problem?
- What is happening or not working?
- Where / when does it occur?
- Why does it matter?
- Evidence that the problem is real.
- Constraints that will shape any future solution.
Weak vs stronger problem definition
Weak: “I want to design a better workshop.”
Stronger: “Electrical equipment in the engineering workshop remains powered during significant periods of inactivity, creating avoidable energy cost and environmental impact. The project will investigate how this energy use could be reduced without affecting safe access to equipment or the delivery of practical lessons.”
At this stage, define the problem clearly but do not lock yourself into one solution. Lesson 03 will focus on creativity and generating multiple engineering solutions.
Lesson Presentation
Teacher-led A2 learning
Engineering Research & Defining the Problem
Use the Unit 5 Lesson 02 presentation during the teacher-led part of the lesson. This presentation introduces engineering themes, research sources, source evaluation and the Smithsons research case study.
▶ Open Lesson PresentationEngineering Case Study
Smithsons • Research changes the direction of a project
From declining watch sales to a focused engineering opportunity
Smithsons is an established watchmaker. As the market changed, the company began losing market share and needed to investigate what type of product opportunity could realistically strengthen its range.
Context
The company had moved from mechanical pocket watches to cheaper digital products as technology and customer expectations changed.
Research Insight
Market research identified strong growth in sport and fitness. This suggested an opportunity connected to activity monitoring.
Problem Direction
Instead of immediately choosing a detailed product design, the company could define a clearer challenge: how should it provide a relevant fitness-focused product that fits its capabilities and market?
Which evidence would you want before accepting the claim that “sports and fitness is a growing opportunity”? Consider market data, competitor products, target users, price expectations and technology trends.
Case-study questions
- What was the broad theme or opportunity?
- What evidence would help confirm the problem?
- Which sources would be most trustworthy?
- What assumptions should Smithsons avoid making too early?
- Write one evidence-based problem statement for the company.
Research & Problem-Definition Activity
Evaluate evidence before deciding what the problem is
Scenario: Engineering Workshop Energy Use
A college reports that its engineering workshop electricity costs have increased. The facilities team believes equipment and lighting may be using more energy than necessary, but no detailed investigation has yet been completed.
Identify at least five pieces of information you would need before defining the engineering problem. For each one, identify a suitable source.
Rank these from strongest to weakest for this investigation and justify your decision:
- actual workshop electricity-meter readings
- a lighting manufacturer's product brochure
- a recent government energy-efficiency guide
- an anonymous online comment saying “LEDs always save 80%”
- an interview with the workshop technician
Write a problem statement based on the scenario. Do not propose a final solution yet.
Lesson Summary
Key learning from Lesson 02
1 • Start Broad
An engineering project may begin with a general theme, initial idea or specific problem.
2 • Research Before Designing
Use several source types to understand the context, existing technology, users, constraints and opportunities.
3 • Evaluate Your Sources
Check authority, relevance, currency and evidence. Strong engineering decisions require trustworthy information.
4 • Define the Real Problem
Use evidence to explain who is affected, what needs improving, why it matters and what constraints may shape the project.
Do not jump to your favourite solution too early. A well-defined problem creates a stronger foundation for creative idea generation, comparison and later feasibility work.
Exit Ticket
Show what you have learned
Question 1
Explain the difference between an engineering theme and an engineering problem.
Question 2
Name two research sources and explain one strength of each.
Question 3
Why is it risky to accept the first source you find without evaluating it?
Question 4
Write one sentence that could form the beginning of a strong engineering problem statement.
Check answer guidance
Q1: A theme is a broad engineering area; a problem is a specific need or challenge within that theme.
Q2: Examples include journals for detailed research evidence, databases for technical data, company websites for product information, or direct measurements for project-specific evidence.
Q3: The source may be outdated, biased, inaccurate, irrelevant or unsupported by evidence.
Q4: A strong opening identifies the user/context and the evidence-based need without assuming a particular final solution.
Worksheet 2
Engineering Research & Defining the Problem
Unit 5 Lesson 02 Worksheet
Complete the worksheet to consolidate your understanding of research sources, evidence quality, themes, stakeholders, constraints and engineering problem statements.
The Lesson 02 worksheet and teacher answer file can be added to these folders when the resources are ready.
AI Lesson Companion
Future VITHAAA learning support
Ask VITHAAA AI
The future Unit 5 AI Tutor can help students compare research sources, challenge assumptions, improve problem statements and check whether a project problem is clear enough before moving into idea generation.