Survey - Detailed presentation of the tool

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This website provides detailed information on what a survey is, why and when it is used, and how it can be performed.

Unfortunately, a Portuguese version is no longer available.


  • Why is this tool used in evaluation?
    • Structured questionnaires
    • Open-ended questionnaires
    • What use can be made of the survey in evaluation country?
  • How is a survey carried out?
    • How is a questionnaire developed?
    • How is the survey carried out?
    • How is the questionnaire conducted?
    • How are the findings analysed and treated?
  • What are the preconditions for its use?
  • What are the advantages and limitations of the tool? 


European Commission. (2005) Survey. Europe Aid Co-operation Office, European Commission. Located at