How do project definitions and WBS elements organize work?

Separate the overall project frame from hierarchical work packages, responsibility, account assignment, planning, budget, billing, and settlement roles.

Project System object model showing project, WBS elements, networks, activities, milestones, material, worktime, product, billing plan, sales order, delivery, and billing. — **Project System object model**Project governance, WBS accountability, detailed execution, and customer fulfilment stay connected without becoming one object. Open the diagram for a full-size view.

READ THE MODEL

One project structure can govern delivery and commercial fulfilment

Start with the project and its profile: they provide the governing frame. WBS elements then divide the work into accountable packages and connect the structure to planning, budget, cost, billing, and settlement responsibility.

Where detailed execution is needed, networks break WBS work into activities. Activities can carry milestones, materials, and work time, making planned work, progress, and resource consumption visible. The output can be a product or service deliverable.

For customer-facing work, the model continues into Sales and Distribution: a billing plan and sales order define the commercial commitment, delivery records fulfilment, and billing creates customer-facing financial evidence.

VALUE STATES

Keep project governance, work execution, and outcome distinct

Each object answers a different project-control question.

01 · GOVERN

Project and profile

Mandate, organisational framework, coding, defaults, status rules, and control model.

02 · CONTROL

WBS element

Accountable scope, responsibility, planning, budget, commitments, cost, and settlement.

03 · EXECUTE

Network and activity

Detailed work sequence, dates, milestones, capacity, materials, and confirmation.

04 · FULFIL

Sales and delivery

Commercial commitment, fulfilment, billing, and revenue evidence for customer projects.

OBJECT MAPPING

Follow project responsibility through its objects

The project frame governs WBS accountability; networks add execution depth; sales and delivery objects carry the commercial branch when the project delivers to a customer.

Project / profile→WBS→Network / activity→Sales order / delivery→Billing

OPERATIONS CONNECTION

Keep project governance, work execution, and commercial outcome distinct

PS connects these objects into one delivery structure. Each remains responsible for a different decision, record, and proof.

Not every project needs the customer-facing branch. Use it when the project is part of a revenue-bearing delivery, and keep the commercial evidence separate from project cost and settlement evidence.

CONTINUE THE PATHContinue to PS 303

See how this capability changes across valid integration models.

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