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Representative POMs are described for Data Reliability at each level of maturity.

2Basic

• Practice

  Establish a basic TCO assessment approach to evaluate current practices and identify areas for improvement for a limited number of IT assets and services.

  Outcome

  There is confidence in the IT function that the accuracy of TCO projections is improving.

  Metric

  Projected versus actual TCO for IT assets and services.

• Practice

  Conduct a TCO assessment as part of the initial cost/benefit analysis for every IT asset and service.

  Outcome

  TCO is established as a key requirement prior to new IT asset/service investment.

  Metric

  % of IT assets/services for which a TCO assessment is conducted in the pre-investment stage.

3Intermediate

• Practice

  Standardize the TCO assessment approach for most IT assets and services and define the tolerances for TCO projections.

  Outcome

  TCO projections for most IT assets and services are accurate within defined tolerances.

  Metric

  Projected versus actual TCO for IT assets and services.

• Practice

  Conduct a TCO assessment as part of the initial cost/benefit analysis for every IT asset and service and periodically as part of ongoing evaluation.

  Outcome

  Ongoing costs associated with IT assets and services are beginning to be assessed.

  Metric

  % of IT assets/services for which a TCO assessment is conducted in the pre-investment stage and as part of ongoing evaluation.

4Advanced

• Practice

  Apply a comprehensive TCO assessment approach to all IT assets and services.

  Outcome

  TCO projections for all IT assets and services are accurate within acceptable tolerance/confidence levels.

  Metrics

  • Projected versus actual TCO for IT assets and services.
  • % of IT assets and services that exceed TCO forecast tolerances.

• Practice

  Consistently conduct TCO assessments throughout the initial and ongoing use phases of every IT asset and service.

  Outcome

  Ongoing costs associated with IT assets and services are consistently and regularly assessed.

  Metrics

  • % of IT assets/services for which a TCO assessment is conducted in the pre-investment stage and as part of ongoing evaluation.
  • # of ongoing TCO assessments conducted per IT asset/service.

5Optimized

• Practice

  Continually review and revise TCO projections in light of experience.

  Outcome

  All TCO projections and the TCO assessment approach are considered robust and reliable.

  Metrics

  • Projected versus actual TCO for IT assets and services.
  • % of IT assets and services that exceed TCO forecast tolerances.

• Practice

  Consistently conduct TCO assessments throughout every stage of the IT asset and service life cycle, including a post retirement assessment.

  Outcome

  TCO benefits can be achieved at every stage in the IT asset/service life cycle.

  Metric

  % of IT assets/services for which a TCO assessment is conducted in the pre, ongoing, and post investment stages.