How does IA relate to appraisal?
Two types of impact assessment are commonly recognised. Ex-ante impact assessment is the process of predicting what the impact of a proposed project is likely to be and is closely related to the task of designing interventions in such a way as to maximise positive impacts and minimise negatives. (Ex-post impact assessment is the process of determining what the impact of an intervention actually was.) Ex-ante impact assessment therefore contributes to the appraisal stage of the project cycle where decisions as to whether or not to fund the project are taken on the basis of what it is believed that the project is likely to achieve. See “Basic impact assessment at project leve”l.
