A fence measuring 2 metres in height and 20 metres in length needs painting. The area of the fence needs to be calculated so that enough paint for the job is purchased. After the task is decomposed, there are three component parts: input, process and output. Three component parts and four example descriptions are shown. Draw one line from each component part to the most appropriate relevant description. Not all descriptions will be used. Component part process output input Description the height of the fence the length of the fence The amount of paint required is 40 square metres. the colour of the paint The area of fence is calculated as 40 square metres.

1. A fence measuring 2 metres in height and 20 metres in length needs painting. The area of the fence needs to be calculated so that enough paint for the job is purchased. After the task is decomposed, there are three component parts: input, process and output. Three component parts and four example descriptions are shown. Draw one line from each component part to the most appropriate relevant description. Not all descriptions will be used. Component part process output input Description the height of the fence the length of the fence The amount of paint required is 40 square metres. the colour of the paint The area of fence is calculated as 40 square metres.[3]

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