To keep it organized we use a nomenclature to describe different aspects of the app. The example we will use is if you are surveying a University Campus:

Dashboard - Screen where all your projects are listed. The name of the University could be used as your project name.

Group - A group is a subset of your project. For our example we would use the different buildings on campus as our groups.

Plan - A plan is an image representing the space you are surveying and is a subset of a group. For our example, the floor plans for all the different floors for each building would be plans.

Asset Library -  The asset library is collection of the common assets you survey. They are given specific characteristics like a specific colors when they show up on the map or have specific user defined fields for specific information. They can be reused from other projects and thus the same asset type only needs to be created once by a company.

Plot Point - Plot points are the locations of the different assets you are surveying. In our example we would have a plot point.