Purpose
If a model mix is assigned to the line balance and a complex productstructure has been maintained for the model mix items, the calculationof the weighted mode duration may take a long time. The reason for thisis the long evaluation of the object dependencies that cannot beavoided. For a complex product structure, the number of valueassignments is multiplied by the possible combination of components andtheir characteristics.
As the online evaluation of the line balance in the Activitiestab page may cause a runtime termination, this program, which can be runin the background, is available.
Using this report does not improve performance. The performance level isnot changed as a result.
This report provides the same functions as available in the onlineevaluation in the iPPE Workbench. As well as the batch option, thisreport also provides an interface to the customer BAdI. You can use thisBAdI to define that the result of the model mix explosion can be savedand the display structure of the line balance relationships with theweighted duration can be reused.

Prerequisites
You have defined a line balance with allocations between product andprocess structures. You have assigned a model mix to the line balance.This model mix contains the portions of every material variant and stilldetermines the weighting of each valid activity in a certain materialvariant.

Selection
The report has the following input parameters:

• One line balance to be exploded


• The key date for the explosion

Output
The result is that the weighted factors of the mode are calculated andthe weighted duration of the modes are displayed together with otherinformation from all line balance relationships.

Activities
Using both input parameters, the system explodes the assigned model mix.That is, it explodes every individual model mix item with the relevantproduct and process structure. Using the explosion date, the systemdetermines the valid components and using the component assignment andthe structure of the activities in the process structure, the systemdetermines the valid activities. To do so, the system reads the validmodes of the activities found.
After the explosion, the system determines the weighted factors of themodes. The factor is unique for a mode with a certain line balance.
The weighted duration is the duration of the mode, multiplied by thisfactor. Once this factor has been saved, the weighted duration cansimply be recalculated. You only have to instruct the system torecalculate the explosion when the product structure and the structureof the activities are changed.