This official DCED guide to defining change indicators explains how indicators can be defined for a results chain. It describes the characteristics of good indicators in detail with practical examples.
An indicator shows what you think success will look like if your outputs are produced and outcomes achieved. It specifies how you will measure whether the changes anticipated in the results chains are really occurring. The DCED Standard requires indicators to be derived from the logic of the results chain. Once you have clarified what you expect to happen, you can then be clear about what you expect to change – and what you would measure, at each step, to see whether this change occurred.