Changes in the product design can result in changes to the process plan (routing), MBOM, production orders, and so on. Before incorporating changes, the manufacturing engineer evaluates their impact and determines whether the changes will be straightforward or complex to implement. All of the following points are what users can do using the Change Impact Analysis function:
- Trigger the change impact analysis for one or more analysis objects from the context of the change record.
- View a list of directly impacted and related objects identified by the analysis and drill down into the object details.
- Identify whether the object is directly impacted by the change, already assigned to the change record, or considered for net change.
- Filter the list of objects by plant, time period, and object type.
- Display a network graph showing the relationships between the objects.
- Display a configurable quick view for objects in the network graph to display details of the object.
- Determine the impact on the object based on the net change determined between the current and previous version of BOMs.
- View the components that have been deleted, modified, or added for each EBOM and MBOM, and navigate to the Stock Requirement app to check the material details of the corresponding object.
- View the manufacturing reference structure (MRS) information for the EBOM and MBOM items in the items table, if available, and see any changes to the MRS in the Net Change section.
- View a list of all activities and the impacted activities for each routing, and navigate to the Manage Shop Floor Routings app for further details.
- View a list of operations impacted for each planning routing, and navigate to the Display Planning Routing app for further details.
- Determine the units impacted by the engineering change in the case of unitized bills of materials or routings.
- Determine the shop floor routings impacted by changes to product manufacturing information (PMI).
- Perform quick actions for the impacted objects, for example, navigate to related apps where you can perform the necessary actions.
The analysis result can be displayed in a list or in a network view. While the list is useful to display all the impacted objects in a consolidated manner, the network provides insights on the relationships between the objects.
For each EBOM and MBOM, the manufacturing engineer can see the components which have been deleted, modified, or added. The manufacturing engineer can also go to the Stock Requirement app to check the material details of the corresponding object.
For each routing, the manufacturing engineer can see the list of all activities and the impacted activities and navigate to the Manage Shop Floor Routings app for further details.
For each unitized BOM and routing, the manufacturing engineer can see the effectivity impacted by the change.
The impact analysis also considers the changes to the parameter effectivity in the BOMs for the unitized material. You can view the manufacturing reference structure (MRS) designator info for BOM items and display the MRS and its hierarchy, if available. Where the changes have been made to MRS designators for individual BOM items is visible in the Net Change section of the screen.
The changes that are determined between the current and previous versions of EBOMs and MBOMs also consider the changes in the effectivity of the items.
The BOM changes are considered to determine the related objects and identify whether or not they are impacted. For example, the production orders for the parameter values (units) that are part of the BOM changes are marked as Impacted production orders.
In addition to the impacted production order the change impact analysis offers information about related orders. For this purpose, the button Related Orders is available to the details screen for production orders, which is only active if related orders actually exist for the current order. Related orders could be either a parent or a child order and are the result of an order split.
Settings for Change Records
You can configure the objects for which you want to analyze the change impact and the specific settings for each analysis object. To do this, in Customizing, go to Manufacturing for Production Engineering and Operations → Production Engineering → Change Impact Analysis.
Summary
This lesson covers analyzing engineering change impacts and updating change records effectively.
- Trigger change impact analysis to evaluate how product design changes affect manufacturing processes.
- Identify directly impacted and related objects using list and network views.
- Assess object changes by comparing current and previous BOM versions for accurate modification tracking.
- Examine activities and operations affected in routings through dedicated apps for detailed insights.
- Navigate quickly to related applications for performing necessary actions on impacted objects.