Points have many default properties you can use to identify them. However, if you have custom data that does not match the existing properties, you can define your own properties. These properties are called user-defined properties.
You can organize sets of user-defined properties in groups called user-defined property classifications. You can then associate a classification with a point group, and then you will have those properties available to use with the points in that point group.
For example, if you have a survey that contains data about the trees on the site, you can start by creating a classification called Trees. Then create properties that are specific to the classification. For example, in the Tree Classification some properties you might create are name, species, and height.
Classifications are displayed as a collection in User-Defined Property Classifications on the Settings tab of Toolspace. Each property you create is displayed in the Toolspace list view.
You can use user-defined properties to:
You can also use user-defined properties for parcels. For more information, see About Using Custom Properties With Parcels.