Priority Model (SAP Library - Task and Resource Management (LE-TRM))

Priority Model

Definition

The priority model is a group of entities that affect the total priority (importance) of a task, the extent of their impact being determined by the entities’ weighting factors and priority values.

Use

The priority model determines the total priorities of tasks at both the task creation and task selection stages.

You can influence task priorities by doing the following:

Using the Mode Maintenance tool from the TRM Monitor to maintain priority modes and their weighting factors

Using Monitor Methods to set priority values

Using Monitor methods to increase or decrease the total priority of a task as calculated by the system

Structure

The priority model comprises of two separate hierarchies: One for task creation and one for task selection.

Entity Name	Description	Priority Value Determination
Route
Duration	Takes into account the following: The time needed to get from the source to the proposed destination The time needed to get from the proposed destination to the final destination. The shorter the period of time, the higher the priority.	System
Resource type – handling unit	Takes into account the preference of a resource type to carry a specific handling unit	User input via Change qualification priority Monitor method. For more information, see Monitor Methods.
Resource type – working area	Takes into account the preference of a resource type to work in a specific working area
Resource type - level	Takes into account the preference of a resource type to work in a specific level

Entity Name	Description	Priority Value Determination
Latest Starting Date (LSD)	A priority that increases linearly from 0 to 99 during the task Critical Time Window. For more information, see Latest Starting Date.	System. Critical Time Window is set in Customization for Task & Resource Management ® Master Data ® Maintain Task Critical Time Windows.
Route
Distance from Source	Takes into account the current position of the resource in relation to the source of the task	System
Resource – handling unit	Takes into account the preference of a resource to carry a specific handling unit	Influenced by user input via Change qualification priority and Create resource element/copy/modify Monitor methods. For information on these methods, see: Monitor Methods Creating Resource Elements Modifying and Deleting Resource Elements
Resource – working area	Takes into account the preference of a resource to work in a specific working area
Resource type - level	Takes into account the preference of a resource type to work in a specific level
Static & Synchronization
Static
Host	Reflects the importance of the originating instruction from the host vis-a-vis other host instructions. An instruction from transfer order A may be given a higher priority than an instruction from transfer order B.	Host
Activity	Reflects the importance of a particular activity vis-a-vis other activities. You may decide that replenishments are generally more important than labeling activities.	User input via Change static activity priority Monitor method. For more information, see Monitor Methods.
Synchronization	Takes into account the relationship between related tasks. For more information, see Task Synchronization.	System