EDA is an acronym for 'Enter Data As'.  All HMIS user profiles are attached to one program within an agency. This serves as their default provider, meaning when they log into their HMIS profile they will automatically be set to enter data into that program. Some agency users may work with individuals in multiple programs within their agencies, thus having a need to enter data in multiple programs in the HMIS. (ex. Shelter and Housing programs or Prevention and Diversion programs.) To switch back and forth between the necessary programs available on their HMIS user profiles, the user will utilize the Enter Data As function and select the correct program.    

See Article: How To Use The Enter Data As (EDA) Mode