Lifecycle end-date calculation logic

For example, Product A has two TPM phases that are End of Support and End of Extended Support. The start date for the End of Support phase is 12/01/2023 and the start date for the End of Extended Support phase is 12/30/2023. No phase end date has been mentioned for the End of Support phase. In such a scenario, the end date of the End of Support phase will be considered as 12/30/2023.

If only one TPM phase is available for a TPM product, then the TPM phase lifecycle end date is calculated by adding the time value as defined in the system property sn_apm.endRangeofTPMLifecycle with the current date. This time value enables the Gantt chart to display only known lifecycle dates.

For example, today is 12/01/2023 and the end date value as defined in the system property sn_apm.endRangeofTPMLifecycle is three years from the current date. Then, the end date of the phase will be 12/01/2026.

Application service and business application timelines

The application services (composed of software products and hardware models) have lifecycle timelines determined for them. On the Gantt chart, the earliest TPM phase start date of either the software products and hardware models are rolled up to calculate the TPM phase start date of the overall application service. That is, the earliest TPM phase start date of any software product or hardware model is taken as the TPM phase start date of the application service, overall.

For example, let's assume that all hardware models and software products have lifecycle dates for the TPM phases that are end of support, end of extended support, and end of life. Now, application service A consists of one software product and one hardware model. The end of support start date phase of the software product is 12/01/2023 and the end of support start date of the hardware model is 12/15/2023. In this scenario, the end of support start date of the software product that is 12/01/2023 will be considered as the TPM phase start date of that application service and accordingly the Gantt chart bar for that application service will start from 12/01/2023.

Similarly, the TPM phase start date of the business application is considered as the earliest TPM phase start date of any of its associated application services. For example, application X has two application services, A and B. The end of support start date of application service A is 12/01/2023 and of application service B is 12/12/2023. In this scenario, the end of support start date of application service A that is 12/01/2023 will be considered as the TPM phase start date of the business application and the Gantt chart bar for that business application will start from 12/01/2023.

TPM risk calculation

The TPM view also displays the upcoming TPM risks associated with any application services, based on their lifecycle dates. To calculate the risk associated with an application service, run the Populate Technology Lifecycle Risks scheduled job. For more details, see Schedule a job to generate TPM technology risk. To learn more about technology lifecycle risk, see Technology risk calculation.

The hardware model and software product risk scores are derived from the TPM Technology Risk table (sn_apm_tpm_technology_risk). The risk values are rolled up to the application service level. The highest risk value of hardware models and software products associated with a single application service is considered the risk value of that application service. For example, application service A consists of two hardware models and three software products. The two hardware models have moderate risk while the two software products have low risk. However, one software product has high risk. In this scenario, the risk value of the application service is considered high.

Similarly, the risk values of the application services are rolled up to the business application level. The highest risk value of an application service associated with a business application is considered the risk value of that business application. For example, business application X has three application services associated with it. The three applications services have risk values as high, moderate, and low respectively. In such a scenario, the risk value of the business application is considered as high.

Color coding

The colors of the bars on the Gantt chart are based on their TPM phase. The TPM phase and its corresponding colors are as follows.

Color	TRM Phase
	End of support
	End of extended support
	End of life

To see the colors associated with each TPM risk type in the Upcoming TPM risk column, select the legend button ().