Workforce planning · The demand forecast · Element
The assumptions
What the forecast depends on being true — growth rate, attrition, retained work.
The part
What it is
A forecast without recorded assumptions cannot be corrected when it turns out wrong, because nobody can identify which input failed.
Attrition is the assumption most often left implicit and most reliably wrong, particularly when the plan involves change.
The smallest level
The attributes it carries
Each attribute is one of the framework’s shared types. What a date is, and how it is written, is defined once for the whole model — the note here says what it means in this particular place.
Assumption
Written down, an assumption can be revisited; implicit, it silently becomes a fact.
Text shared typeAttrition rate
The input that most often breaks a workforce forecast, and the one least often stated.
Percentage shared typeConfidence
Separates the assumptions worth monitoring from the ones that are effectively known.
Confidence shared type