When using HAMMER CONNECT in the MicroStation environment, there are three files that fundamentally define a HAMMER CONNECT model hydraulic model:

• Drawing File (.DGN)—The MicroStation drawing file contains the elements that define the model, in addition to the planimetric base drawing information that serves as the model background.
• Model File(.wtg)—The model file contains model data specific to HAMMER CONNECT, including hydraulic model option settings, color-coding and annotation settings, etc. Note that the MicroStation .dgn that is associated with a particular model may not have the same filename as the model’s .wtg file.
• Database File (.sqlite)—The model database file that contains all of the input and output data for the model. Note that the MicroStation .dgn that is associated with a particular model may not have the same filename as the model’s .sqlite file.

To send the model to another user, all three files are required.

It is important to understand that archiving the drawing file is not sufficient to reproduce the model. You must also preserve the associated .wtg and .sqlite files.