Project size and completion timeframe

The estimated duration of a project is generally calculated by carefully planning the project tasks, taking into account the constraints between tasks and the resources allocated to complete them.

To estimate this timeframe empirically, the MCCONNELL formula [1996] can be used:

Delay in months = 3.0 * power(workload in man-months; 1/3)

Or

Delay in months = 1.19 * power(load in J; 1/3)

Often, the deadline is non-negotiable: "The new software must be in production in 12 months!" With such a constraint, the only negotiable element is the list of features to be implemented within the allotted time.

The nomenclature of functions, measured in Function Points, allows for the rapid prioritization of homogeneous functional sets that can be developed in a timely manner. The correlation established between workloads and function points makes it possible to determine the number of Function Points that can be achieved within the allotted time frame! In a 12-month timeframe, producing more than 1,500 Function Points is only achievable with an experienced team!