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Planning Assumptions

C4

Document the scope and provenance of the assumptions and estimates that underlie the IT business plan – for example, an internally generated sales forecast that is informed by market and customer feedback.

Improvement Planning

Practices-Outcomes-Metrics (POM)

Representative POMs are described for Planning Assumptions at each level of maturity.

2Basic
  • Practice
    Describe macro or organization-wide planning assumptions.
    Outcome
    Improved understanding of the basis of the IT business plan helps to anticipate the impact of changes in key plan variables.
    Metric
    # of plan variables for which assumptions are defined.
3Intermediate
  • Practice
    Ensure planning assumptions have input from some other business unit sources.
    Outcome
    An IT business plan that is better aligned with the overall business plan has more organization-wide acceptance, and improves the likelihood of a successful implementation of the plan.
    Metric
    # and % of plan variables where assumptions originate with the business as opposed to IT.
4Advanced
  • Practice
    Present assumptions down to the project level.
    Outcome
    There is smoother transition from planning to implementation stages.
    Metric
    # and % of projects for which assumptions are stated.
5Optimized
  • Practice
    Develop assumptions that have been agreed with and take account of the interests of all relevant stakeholders.
    Outcome
    There is better understanding of the roles and responsibilities by all plan participants.
    Metric
    # of stakeholders that have signed off on the plan assumptions.