Design and Technology Application
What this domain rewards
Application questions ask you to use knowledge to solve, evaluate, or improve a real design. You must be able to read a scenario, identify the real need, and propose a solution with justified decisions. Expect to interpret and produce technical communication: orthogonal drawings, dimensioning and tolerancing, scale, section views, and isometric sketches. Know how to plan production: a cutting list, a process/flow chart, sequencing of operations, jigs and fixtures for repeatability, and quality control through checking against the specification. Understand prototyping and testing-why you build a model, what data you collect, and how results drive modification.
Traps to watch
- Proposing a solution without checking it against the specification.
- Missing units, tolerances, or scale on drawings-these lose marks silently.
- Describing a process in the wrong order (e.g. finishing before assembly where assembly would damage the finish).
- Evaluating only aesthetics, ignoring function, safety, cost, and sustainability.
- Failing to state how you would test or measure a criterion.
Rule of thumb
Use need → solution → evidence → evaluation: state the need, describe the solution, give the evidence (test data, drawing, calculation), then judge it against the specification and propose one improvement. This structure earns application marks because it demonstrates judgement, not just description.
Worked example
A student must make twenty identical brackets. A weak answer describes cutting each by hand. A strong answer specifies a jig to set hole positions, a stop block for repeatable length, a sampling check of the first and every fifth part against a tolerance, and a flow chart sequencing marking, cutting, drilling, deburring, and finishing-then evaluates scrap rate and proposes a fixture improvement if variation appears.