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Preview

DA 2.17: Input, transformation and output in a workflow

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

Every report is a small factory

Raw sales lines go in at one end. A tidy total comes out at the other. In between, somebody cleans, joins and adds up.

A workflow draws that factory so everybody can see each step.

Key words

WordWhat it means
Workflowthe ordered steps that take data from start to finish
Inputthe data a workflow starts with
Transformationa step that changes, joins or summarises data
Outputthe result a workflow produces
Componentone part of a workflow
Flowcharta diagram of steps joined by arrows

The cells students fill in are left blank in this preview.

By the end of this lesson

Note

I can pick the components of a workflow and draw it.

Starter

Have a go

Starter

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

Three kinds of component

Every workflow has three kinds of component. Input is what comes in: files, tables, forms. Transformation is what changes it: clean, filter, join, add up. Output is what goes out: a report, a file, a chart.

Pick each component for a reason. Say what goes in and what comes out.

A workflow for the monthly sales report

ComponentKindWhat it does
Till exportInputDaily sales lines as a file of values
Standardise dates and namesTransformationMakes formats the same
Join prices, add up by shopTransformationTurns units into pounds
Monthly reportOutputA table sent to the manager

The cells students fill in are left blank in this preview.

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

8 more parts of this lesson are in the full curriculum, with the tasks, the final check and the labs. A college account gives your students all of it.