As the needs of your organization grow and change, it is important for your GIS to keep up. This means you will need to make changes to the database schema.

So what does the word schema mean? Simply put, it means the structure of a database. So schema is not just a GIS term, but it is also a term used for other databases as well. In the case of a GIS database, schema refers to things such as what feature classes are stored in the database, what attribute fields are linked to those feature classes, what domains are included in the database, are any tables or feature classes related, and so on.

ArcGIS Pro allows you to make some changes to your GIS data schema. It will allow you to add new feature classes, add fields and create domains. It does have some limitations currently such as you cannot create a topology or geometric network. Hopefully, as ArcGIS Pro continues to mature, those limitations will disappear.