Performing an impact analysis for a change request

1. Run a SmartGraph Sync Schedule from BMC Helix CMDB .
   For more information, see Scheduling a SmartGraph Sync to share impact attributes with BMC Helix Telco Extensions in the BMC Helix CMDB online documentation portal.
2. As an administrator, enable BMC Helix Network Service Operations for Communication Service Providers.
   For more information, see Setting-up-and-going-live.
3. As an administrator, configure the network impact analysis settings for change requests.
   For more information, see Configuring Change Management.
4. As an administrator, configure the Impact Weight Mapping for the different impact levels.
   For more information, see Configuring-the-impact-analysis-settings.
5. To run the impact analysis, make sure you have the Change Master or Change User permissions.
   For more information, see Roles-and-permissions.

To run a network impact analysis by using the Impact Analysis Console

When you run the network impact analysis by using the Impact Analysis Console, you can select the input CIs and their impact weight. Additionally, after the process is successfully completed, based on the results, you have the option to relate the impacted CIs back to a new or existing change request.

1. Click Console > Impact Analysis Console.
   
2. From the right corner, click + Impact analysis run.
   
3. On the Select input CIs tab, enter the Description, and from the list of CIs, select the required CIs.
   
4. Click Add selected.
5. Select the new impact weight (%) for the selected CIs and click Save.
   
6. Confirm the list of CIs and the impact weights.
   You can also select the required CIs and click Remove or Change impact weight.
   
7. Click Run analysis.
   After the impact analysis process starts, the following message is displayed:
   Success. The impact analysis process has started successfully.
8. From the Impact analysis window, for the impact analysis that you have performed, click the three dots and select either of the following options:
   • Create incident—From the Create incident window, create a new incident and click Save.
   • Create change—From the Create change request window, create a change request and click Save.
   • Relate to incident—From the Relate to incident window, select the required incident, and click Relate.
   • Relate to change—From the Relate to change window, select the required change request, and click Relate.
     

1. From an existing change request, select More > Network impact analysis console.
   
2. Click + Impact analysis run.
3. Select either of the following options:
   1. Use associated CIs—You do not have the option of selecting CIs. Only the CIs associated with the change are considered with their default impact weight. After the impact analysis process starts, the following message is displayed:
      Success. The impact analysis has been started using the associated CIs and default impact weight. You can view details in the impact analysis console.  
   2. Select input CIs—You have the option of selecting the required CIs and deciding the impact weight.
      
4. (For the Select input CIs option only) From the New impact analysis run window, select either of the following options:
   1. Select CIs from ticket—This ticket analysis option retrieves all the associated CIs related to the change. 
   2. Select from all CIs—This what-if analysis option retrieves all the CIs from the BMC.ASSET dataset in BMC Helix CMDB. 
      The description field is automatically populated based on the selection, which you can modify.
      
5. Select the required CIs and click Add selected.
6. Select the new impact weight (%) for the selected CIs and click Save.
   
7. Confirm the list of input CIs and the impact weights.
   You can also select the required CIs and click Remove or Change impact weight.
   
8. Click Run analysis.
   After the impact analysis process starts, the following message is displayed:
   Success. The impact analysis process has started successfully.

9. After the impact analysis process is completed successfully or even if the impact analysis process fails, an email with the following information is sent to the user who started the impact analysis process:

   The impact analysis run initiated by <username> for the CRQ000000000001 has been completed.

   Change details:
   ————————————————————————————————————
   Change ID: CRQ000000000001
   Priority: High
   Status: In progress
   Summary: Broken fiber optic cable
   ————————————————————————————————————

   Impact analysis details:

   ————————————————————————————————————
   Description: What-if run for <username>
   CIs impacted: 113
   CIs with LoS: 113
   Services impacted: 1
   Services with LoS: 1
   ————————————————————————————————————

1. To run an impact analysis quickly without manually selecting any additional CIs, from an existing change request, select More > Initiate network impact analysis.
2. The impact analysis process starts and the following message is displayed:
   The impact analysis has been started using the associated CIs and default impact weight. You can view details in the impact analysis console.

 The process automatically selects the input CIs from the associated CIs with their default weights (100%), except the CIs with the Association Type as Impacts.

1. Run the impact analysis process.
   For more information, see To run network impact analysis for a change request by using the Impact Analysis Console.
2. From the Network impact analysis console, click Successful from the Status column.