The DTM is a monitoring tool designed to provide timely and accurate information on the population and Internally Displaced Persons (IDP) sites.
It is a camp-based, rapid assessment that gathers information mainly through observation, physical counting and informant interviews.
First rolled out in Haiti in March 2010, (DTM v1.0) was developed in collaboration with the Camp Coordination and Camp Management (CCCM)
Cluster and other partners taking into account the emergency information needs of various clusters immediately following the earthquake.
In October 2010, DTM was revised to take into consideration the changes in the overall humanitarian situation resulting in the development of
a more concise data gathering tool (DTM v2.0).
Information provided to partners through DTM is meant to be used as baseline data to assist partners in planning and developing interventions
and carrying out more detailed assessments.