Create Line Hierarchy 
Prerequisites
You have created a work center for the header and for all further line segments of the line hierarchy.
If you would like to assign materials to the line hierarchy, enter the work center, which you would like as the header of the line hierarchy, into the production version of all materials. You create the production version with the planning data in the material master record.
Procedure
Starting from the main Line Design menu, choose Line hierarchy
®
Create.The system displays the initial screen for rate routings.
Enter the plant and in the field Line hierarchy enter the work center which you would like to use as the line hierarchy header.
If you do not want to define the planned rates in
Line balancing, select the indicator No line balancingChoose 
.
The system displays the overview of the planned production rates.
Enter the unit of measure and the time unit for the line hierarchy.
The units of measure, which you would like to produce on the production line must be convertible into the units of measure on the production line (e.g. grams and kilograms). If necessary create a conversion factor in the material master record.
If you already know the maximum rate of the production line, enter it. You can also determine the maximum rate using line balancing and then enter it in the line hierarchy. The reciprocal of the maximum rate is the minimum takt time. This defines how long a material is retained for processing in a takt of the production line.
Save the line hierarchy.
Result
You have created a line hierarchy. If necessary you can test the materials that are assigned to the production line by selecting the tab page Materials assigned.
Finally leave the graphic processing of the line hierarchy by choosing 
Line segments.