Demand vs Capacity

The central question: does your workforce have enough capacity to meet the workload demands within the scheduled timeframe?

Feasibility = Available Capacity − Required Demand
Computed daily, per discipline, per asset — across the entire project lifecycle.
The Workload

Demand

How many man-hours of work need to be completed, and when?

  • Total man-hours defined at the task level
  • Distributed across each task's date range
  • Grouped by discipline and component type
  • Aggregated upward: tasks to activities to groups to assets
  • Changes when tasks are added, moved, or re-scoped
VS
The Workforce

Capacity

How many man-hours of work can the available staff deliver?

  • Number of active staff per discipline
  • Adjusted for leave, off-days, and shift patterns
  • Standard work hours per person per day
  • Filtered by matching discipline and strength
  • Changes when staff are added, removed, or reassigned

Three Possible Outcomes

Surplus

Capacity exceeds demand. The workforce has more availability than the workload requires. Opportunity to accelerate or redistribute.

Balanced

Capacity matches demand. The plan is feasible with no slack. Any disruption may cause delays.

Deficit

Demand exceeds capacity. The workforce cannot complete the workload on schedule. Action required: add staff, extend dates, or reduce scope.

Example: Daily Demand vs Capacity by Discipline

Structural
Surplus
Mechanical
Deficit
Electrical
Balanced
Interior
Surplus
Surface
Balanced
Demand (man-hours required)
Capacity limit

The Conservation Principle

The total effort required for a defined scope of work is fixed. Redistributing tasks across time changes when the work happens, but not how much work there is. This is the foundation of the framework's deterministic model.

Total Workload = Constant (for a defined scope)

What the framework helps you answer is not "how much work is there?" — that's already defined. It's "can this workforce complete this work within this schedule, and if not, where do the constraints bind?"