Devices, methods, and systems for controlling a building management system are described herein. One method includes authenticating a user for access to a plurality of building management system (BMS) applications. The authentication can include determining an identity of the user, determining access rights of the user, and determining a location of the user. The method can include receiving building data from the user associated with at least one of the number of BMS applications that changes a building parameter. The method can include changing the building parameter based on the identity, the access rights, and the location of the user and the received building data