AceDSE
← All subjects
AceDSE · Paper · 2026.07

設計與應用科技
Design and Applied Technology

Evidence-led Design Brief and Technical Option

minutes85 minutes
marks35 marks
Attempted componentEnglish
Candidate name
Date

Sample-paper basis

sample design briefs, product images, annotated-development work, technical calculations and extended evaluation

Scope of this paper

The paper targets written design reasoning. It cannot replace the substantial SBA design project.

Candidate instructions

  1. Complete the design brief and ONE technical option.
  2. Annotated sketches may be drawn in the answer spaces.
  3. A design feature earns credit only when linked to user evidence or a technical principle.

Compulsory design brief — Medication dispenser

20 marks

User research (fictional)

  • Four of six older users sometimes press twice because they cannot see whether a dose has fallen.
  • Two users have hand tremor; one can comfortably operate controls only with a closed fist.
  • Carers want a log but users reject cameras and cloud accounts.
  • The device must be cleaned weekly and fit a 240 mm × 160 mm shelf.
1(a)
Convert the interview evidence into four ranked design specifications. Each must be measurable and justified.
[8 marks]
1(b)
Develop two distinct concepts using annotated sketches. Compare them with a weighted decision matrix using at least four criteria, then select one without manipulating the scores.
[8 marks]
1(c)
Describe a prototype test for accidental double dispensing. Include sample, procedure, success threshold and one ethical/safety precaution.
[4 marks]

Technical option

15 marks

Answer ONE technical option.

Option A — Electronics and control

2A(a)
A 5.0 V microcontroller output drives an LED rated 2.0 V at 15 mA. Calculate a suitable series resistor and choose from 180 Ω, 220 Ω and 330 Ω. State the resistor's minimum power rating with a safety margin.
[7 marks]
2A(b)
Design control logic that prevents a second dose within four hours but permits an authorised carer override. Include sensor failure and power-loss behaviour.
[8 marks]

Option B — Materials and manufacture

2B(a)
Compare injection-moulded ABS with laser-cut acrylic for a run of 5,000 housings. Consider tooling, unit cost, impact, geometry and end-of-life repair.
[8 marks]
2B(b)
Specify three design-for-manufacture changes and two quality-control checks for the chosen housing.
[7 marks]

Every question and figure is original AceDSE work; official samples were used only to calibrate format, complexity and reasoning depth.
Marking guidance is hidden by default and prints only after you reveal it.