Characteristic Propagation: Overview (SAP Library - Planning with Characteristics)

Characteristic Propagation: Overview

Use

This is an overview of the prerequisites and procedures for the characteristic propagation options. Bear these in mind when defining the propagation rules for a production process model (PPM).

Note

If a requirement has characteristic value assignments but no characteristic requirements, the system uses the characteristic value assignments for pegging. For this reason, you must not define any characteristic requirements for input components if characteristic value assignments already exist. This is not necessary if the characteristic value assignments are different from the characteristic requirements.

Structure

Meaning

Procedure

Prerequisites

PPM Selection

Restriction of possible PPMs using characteristic requirements of the receipt component

Maintain the default requirements for the receipt component.

You have assigned the same class to the logical component and the product.

Pegging

Comparison of receipt value assignments with requirements of the requirement (in orders).

· Assign the product class to the receipt and requirement.

· Define the characteristic propagation from receipt to requirement

You have assigned the same class to all products of a logical component.

Block Planning

· Propagation of characteristics to activities

· Value assignment of the activity is compared with the blocks (block basis definitions) on the resource.

Use the default value assignment or define characteristic propagation for the activity.

· You have assigned the same class to the activities as you have to the resources; if necessary, you have defined a propagation definition.

· You have defined the blocks.

Rules (Configuration)

· Rule definition for activity: Selection (by restriction) of modes and logical components

· Rule definition for logical components: Selection (by prioritization) of products

· Rule definition for operation for setup group/key

· Rule definition for plan (operation selection)

Assign a class to the component.

Define the characteristic propagation for the component.

Maintain the rules.

· You have assigned a class to the activity or logical component.

Planning Parameters

· If classes have been assigned to the activities, the planning parameters of the dependent modes (PP = duration) and primary resources (PP = resource load) are overwritten.

· If classes have been assigned to the logical components, the planning parameters of the dependent products (PP = material consumption) are overwritten.

· Assign a class to the component.

· Set the planning parameters Define a macro, if necessary.

· You have assigned a class to the assigned PPM component.

· You have defined a relevant propagation definition.