Use the Sessions tab on the Deployment Options dialog box to indicate whether your model will use a single session or a session pool. If your model will use a session pool, this is also where you provide the pool and startup entity names.
To access the Sessions tab, open a model in the Design Tool, then select Deployment Options on the File menu.
Select this radio button if your model uses a single session, that is, a single session between the client (model) and the host.
Select this radio button if your model uses one or more session pools.
The name of the session pool.
Startup entity name
The entity the deployed model initializes to when a data object attaches to the host session.
The number of sessions that will be activated in this pool when the model is deployed.
The maximum number of concurrent sessions that can be active in this pool when the model is deployed.