QCE Digital Solutions Unit 3 Definitions Worksheet: Interactions Between Users, Data and Digital Systems and Real-World Problems and Solution Requirements (Modules 128–176)
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Key terms
Write what each term means, in your own words.
1
development method
2
useability principles
3
error tolerance
4
ease of learning
5
engaging
6
line, shape, texture
7
Chosen aspect
8
limitation
9
Prescribed criteria
10
self-determined criteria
Answer Key
QCE Digital Solutions Unit 3 · Modules 128–176 · Student wording will vary for definitions
1development method — Choosing the approach by weighing how clearly users state requirements, how involved they can be and how often needs change: agile if engaged, waterfall if stable.
2useability principles — Six criteria for judging an interface: accessibility, effectiveness, efficiency, error tolerance, engagement and ease of learning. Each feature of a design can be matched to one of them.
3error tolerance — A useability principle: the interface prevents mistakes where it can, and helps users notice and recover from the ones they make, using validation, confirmation prompts and undo.
4ease of learning — A useability principle: a new user can work out how to complete tasks quickly without training, helped by familiar conventions, clear labels and onboarding hints.
5engaging — An engaging interface is pleasant and motivating to use, through visual appeal, interactivity and rewards, so users want to keep using it.
6line, shape, texture — Building-block design elements combined with colour, type and space: lines lead the eye, shapes give meaning and texture adds depth.
7Chosen aspect — The one manageable part of a problem your solution will develop, picked by importance and feasibility, linked to stakeholder needs, and justified.
8limitation — Something the finished solution cannot do, or does only partly, because of constraints and scope decisions. It is stated honestly in a limitation statement, not hidden.
9Prescribed criteria — Success criteria set for you by the task, such as an assessment brief or client, that your solution is judged against. Turn each one into a checkable statement.
10self-determined criteria — Success criteria you write yourself from the problem, stakeholder needs and requirements, to add to the prescribed criteria. Make them measurable and avoid repeating prescribed ones.