Imagine two different chocolate bars. They both need to satisfy the customer, but one might do it through a biscuit centre and one through the texture of the chocolate. They have the same purpose but different ways of achieving it.
One way to link texts is through the purpose they are aiming to achieve. Two different texts may:
When comparing texts, consider both what they have in common and what is different about them.
If they have the same purpose:
If they have a different purpose but the same subject:
Look at these headlines, from The Mirror and The Telegraph, from articles reporting the same story. They have the same purpose – to inform people about the landing of a space probe on a comet.
Rock starThe Mirror
European Space Agency's Rosetta spacecraft lands probe on cometThe Telegraph