Because the 3W tracks the humanitarian response in detail and can present the information at various levels of detail from operational to strategic overview, it can be useful in a variety of ways:

• It presents an overview of the humanitarian response.
   
• It may help in identifying gaps and duplications in the response programmes
   
• It can assist with monitoring and evaluation, and reporting on the crisis (e.g. as a reference for mid-term review reporting on the CAP) The categories may be analysed to provide a more detailed picture of the humanitarian response within, for example, a specific sector, area etc. This facilitates more detailed co-ordination.
   
• It comprises detailed information on the crisis response activities. This can be useful for subsequent reference, lessons learned, academic studies etc.