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Preview

Unit 5 D1: Reviewing how well a solution works

This is the first page of the lesson. Read it and have a go at the activities. The rest is in the full lesson.

50 minutes

The gym that grew

Harbour Gym is made up. Last year it had one small hall and 60 members. It bought a simple sign-in system. Now it has two halls and 300 members, and the system is slow.

The solution was good once. Is it still? Organisations change, so a good review asks the question again and again.

By the end of this lesson

Note

I can explain how well a solution meets an organisation's needs and compare it with an alternative.

Key words

WordWhat it means
Reviewa fair look at how well something works
Contextthe facts about the situation around a decision
Alternativeanother choice that could do the job
Justifygive reasons that support a choice
Requirementsomething a service must have or do
Stakeholdera person or group affected by a decision

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Starter: what you already know

Have a go

Starter: what you already know

3 questions
Have a go: your answers are marked here and then forgotten. Sign in if you would like your score kept, and to pick up where you left off.Sign in to keep your score

Your answers are marked here and are not kept. A college account keeps every student’s marks.

Context shapes the needs

Context is the facts around a decision. How big is the organisation? What is its budget? Where does it work? How many users does it have? What has changed?

Context affects choices at the start, when needs are found, and again when the solution is planned. A tiny team and a big team need different answers to the same question.

Worked example: Harbour Gym then and now

ContextA year agoNow
Members60300
SitesOne hallTwo halls
Staff at the deskOneThree, on shifts
What members expectSign in with a card at the deskSign in on a phone

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Check

Have a go

Check

3 questions
Have a go: your answers are marked here and then forgotten. Sign in if you would like your score kept, and to pick up where you left off.Sign in to keep your score

Your answers are marked here and are not kept. A college account keeps every student’s marks.

The lesson goes on

6 more parts of this lesson are in the full lesson, which colleges teach from the Library. A college account gives your students all of it.