Years 9–10 Creating Digital Solutions Definitions Worksheet: Defining and decomposing problems to Evaluating solutions, impact and innovation (Modules 6–132)
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Key terms
Write what each term means, in your own words.
1
hierarchy chart
2
prioritising requirements
3
truth table
4
age >= 13 AND has_permission = Yes
5
NOT (A AND B) = (NOT A) OR (NOT B)
6
user journey
7
accessibility features
8
interactive prototype
9
future impact
10
enterprise opportunity
Answer Key
Years 9–10 Creating Digital Solutions · Modules 6–132 · Student wording will vary for definitions
1hierarchy chart — A diagram that splits one main problem into smaller sub-problems in boxes, level by level, until each box is a small task that can be solved on its own.
2prioritising requirements — Ranking requirements as must-have, should-have or nice-to-have so the most important needs are built first, and trade-offs are made when time or budget is limited.
3truth table — A table that lists every combination of true and false inputs and shows the result of AND, OR or NOT for each one. Two inputs give four rows.
4age >= 13 AND has_permission = Yes — A combined condition in one decision diamond. AND needs both parts true, OR needs just one, NOT reverses it. One diamond with AND matches two diamonds in a row.
5NOT (A AND B) = (NOT A) OR (NOT B) — De Morgan's law: to negate a compound condition, negate each part and swap AND for OR. Likewise NOT (A OR B) = (NOT A) AND (NOT B). A truth table can prove they match.
6user journey — The series of steps a person takes to complete a task, from start to finish. It shows how they feel at each step (their user experience, UX) and where pain points slow them down.
7accessibility features — Design choices like alt text, captions, keyboard-only controls, adjustable text size and not relying on colour alone, so people with different abilities can use a system.
8interactive prototype — A clickable model of a design where buttons link screens together, so users can try a task before any code is written. It is used for testing, not the final product.
9future impact — How a solution could affect society, the economy and the environment over time, including unintended effects its designer did not plan for.
10enterprise opportunity — A gap in what people need that a solution could fill, plus a way to deliver it to a target market, such as selling an app to students who have no good option yet.