The filter functionality is based on the data model that you have created in your environment. Just like the data entry forms, the filter forms are automatically generated in the interface. You do not need to write queries or set up forms yourself, this is all taken care of by nodegoat.

These guides use the Types and Classifications created in the guides on creating an Object Type, creating a Classification, and creating a related Object Type. These guides use the data that has been imported in the guides on importing data. You can use this data model and data, or use your own model and data.