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Critical Evaluation of Technology in Design Decisions

Good designers do not just pick an idea. Learn to weigh budget, time, users and ethics, and to judge the technologies that new scenarios demand.

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What you'll cover

Weigh it up first 🧭

A good designer never just picks the first idea. They **critically evaluate** it first, weighing the factors that will make or break the design. Critical evaluation means judging an idea against real constraints and asking hard questions before committing.

The design-decision factors 📋

Before committing, a designer weighs several factors: - **Budget**: how much can be spent. - **Timescale**: how long there is to design and make it. - **The user**: who it is for and what they need. - **Materials**: what is available and suitable. - **Manufacturing capability**: whether it can actually be made at the scale needed.

Match each factor to the question it forces

  • Budget
  • Timescale
  • The user
  • Manufacturing capability
  • Can we afford the materials and processes?
  • Is there enough time to design and make it?
  • Does it meet the needs of who it is for?
  • Can it be made at the quantity required?

Real constraints

Select the TWO factors a designer must weigh when making a design decision.

  • The budget available
  • Who the product is for
  • The designer's favourite colour
  • The weather on the launch day

Scenarios that drive new tech 🌍

New and emerging technologies often respond to real scenarios, now and in the future: - **Natural disasters**: shelters, water purification. - **Medical advances**: prosthetics, monitoring devices. - **Travel**: cleaner, faster transport. - **Global warming**: renewable energy, low-carbon materials. - **Communication**: faster, wider connection.

Match each scenario to a technology it might drive

  • Natural disaster
  • Medical advance
  • Global warming
  • Travel
  • Rapidly deployable emergency shelters
  • Custom 3D-printed prosthetic limbs
  • Renewable solar and wind energy
  • Electric, low-emission vehicles

Name the driver

A region is hit by frequent flooding and needs clean drinking water fast. Which scenario is driving new design here?

  • Natural disasters
  • Medical advances
  • Communication
  • Travel

The ethical questions ⚖️

A critical evaluation also asks ethical questions: - **Where and by whom** was it made, and in what conditions? - **Who benefits**, and who might be harmed? - Is it **fair trade**: are workers paid and treated fairly? - Is it **sustainable**: kind to the planet over the long term?

Which concern?

Asking whether the workers who made a product were paid and treated fairly is an example of which concern?

  • Fair trade
  • Budget
  • Timescale
  • Materials

Weigh the decision

An interactive activity.

A good evaluation

Select the TWO things a good critical evaluation does.

  • Weighs several factors against each other
  • Considers who benefits and who is harmed
  • Picks the first idea without question
  • Ignores cost and time completely

Evaluation frame

Critically evaluating a design means weighing factors like _____, timescale and the _____ it is for. New technologies often respond to scenarios such as natural disasters or _____ warming. A designer should also ask _____ questions, like whether a product is made under fair-trade conditions.

budget user global ethical colour weather random casual

The jargon

What does evaluating the sustainability of a design mean?

  • Judging how kind it is to the planet over the long term
  • Judging how cheap it is to buy
  • Judging how fast it can be made
  • Judging how colourful it looks