A deployed model store can be accessed from within the Spectrum Technology Platform as well as other client applications. If you are accessing it from Spectrum Technology Platform, you just need to create a connection to required model store using the Add Data Sources page, as the JDBC driver gets installed during the Spectrum Technology Platform installation. For more information about creating connection to a model store, see Connecting to a Model Store.
However, if you are accessing it from any other application, you need to download the JDBC driver and install it manually. Once installed, you need to create connection to Spectrum Discovery using simple code so that you are able to use the model store.