NIGEAE 10 step approach
The Northern Ireland Guide to Expenditure Appraisal and Evaluation (NIGEAE) employs a 10 step approach to appraisal in order to simplify the practical business of carrying out an appraisal.
These steps are presented broadly in the sequence in which they should be undertaken, but this should not be interpreted rigidly. For example, it is not necessary to wait until all the options are defined before starting to consider costs, nor is it necessary to identify all the costs and benefits before beginning to identify risks and uncertainties.
However, something that may generally be interpreted rigidly is that the conclusions and recommendations should not be decided before the analysis is undertaken.