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Master Data 
This component forms the basis for all object-related information for representing real estate objects. Master data is divided into two views in which you can process real estate objects in different ways:
1. Usage view: commercial and accounting view with fixed master data objects:
· Business entity
· Property
· Building
· Rental object:
¡ Pooled space
¡ Rental space
¡ Rental unit
Using the usage view is mandatory.
2. Architectural view: technical view with master data based on architectural object types that you can define yourself in Customizing.
Examples
· Locality
· Property
· Building complex
· Building
· Floor
· Part of building
· Space (such as parking space, storage space, office space)
· Room of a space
Using the architectural view is optional.
You make settings for the master data of both of these views in Customizing. Choose
SAP Customizing Implementation Guide ® Flexible Real Estate Management (Enterprise Extension) ® Master Data ® Usage View or Architectural View
You make global settings for master data of the usage view and architectural view in Customizing (Measurements). Choose:
SAP Customizing Implementation Guide ® Flexible Real Estate Management (Enterprise Extension) ® Master Data ® Basic Settings ® Measurements
This component is the basis for using all other functions of the Flexible Real Estate Management (RE-FX) component.
You can change, and in some cases add to, the fields, screens, screen sequences, and so on of master data dialogs. You do so using the Business Data Toolset.

For more information, refer to
Business Data
Toolset. Also refer to the documentation for the Dialog IMG activity for the given master data.
