Determining the Measurement Method 
Purpose
When you run the progress calculation, the system calculates the percentage of completion (POC) for the object in question. To this end, it determines the measurement method applying to the object.
Integration
You can use the progress version to specify whether an existing planned method is taken over as the actual method, and vice versa
If you do not specify a measurement method for the object when you maintain the object, the system adopts the planned/actual method.
For details, see
Progress VersionsYou can define a default measurement method for each object type. You enter this setting in the Project System IMG by choosing Progress ® Progress Analysis ® Define Measurement Method as Default Value.
Process Flow
The system automatically determines the valid measurement method when you execute the progress calculation.
The following graphic shows you how the system determines the measurement method.
The system always determines a measurement method for the object. If the system finds that no measurement method has been prescribed, it adopts the method SAP 0-100. This method is prescribed; you cannot change it.
Result
The progress determination log or the progress analysis show the method applying to an object.

As the measurement method is determined on the basis of the progress version, the detailed data for the object only shows the measurement method if you have maintain a progress version for the object.