HMIS is a shared data system designed to provide an unduplicated count of homeless individuals, information on the number of people who are homeless, related demographics and their needs over time.
 

Local programs in communities implement an HMIS to enter and share client-level data across agencies about homeless persons served in shelters or other agencies.

All HUD funded projects and its HMIS participating federal partners must utilize an HMIS system to track client level data for reporting purposes.