Roles and Responsibilities by Contract Structure

Overview
In construction and capital projects, the contract structure (also called the delivery method) decides who does what, who carries which risks, and who answers to whom. The PMI Construction Professional (PMI-CP) exam expects you to know how roles and responsibilities change from one structure to another. You also need to apply that knowledge to scenarios about design ownership, coordination, risk transfer and dispute resolution.

Why It Is Important
- Accountability: Clearly defined roles prevent gaps ("nobody owned it") and overlaps ("two parties both thought they were in charge").
- Risk allocation: Each structure shifts design, cost, schedule and performance risk differently among the parties.
- Communication and governance: The structure sets the lines of communication, the approval authority and the escalation paths.
- Claims and disputes: Most disputes come from misunderstood responsibilities. Knowing the structure tells you who is liable when something goes wrong.
- Project success: Matching the structure to the owner's capability, risk appetite and schedule needs directly affects cost, quality and delivery speed.

What It Is
Roles and responsibilities by contract structure means the formal allocation of duties, authority and risk among the main parties under a given delivery method. The main parties are:
- the Owner/Client
- the Designer (Architect/Engineer)
- the Contractor (General Contractor, Design-Builder, CM)
- Subcontractors and Suppliers
- sometimes an Owner's Representative or Program Manager

These roles are written into the contract documents:
- general and special conditions
- scope of work
- responsibility matrices (RACI)
- payment terms
- change and claims clauses

How It Works: Key Contract Structures

1. Design-Bid-Build (DBB) / Traditional
- Owner: Hires the designer and the contractor under separate contracts. Owns the design adequacy risk toward the contractor, under the Spearin doctrine (the implied warranty of plans and specifications). Manages the interface between designer and contractor.
- Designer: Prepares complete drawings and specifications. Often administers the construction contract by reviewing submittals, answering RFIs and certifying payments.
- Contractor: Builds according to the documents and controls means and methods. Is responsible for workmanship and site safety. Has no contract with the designer.
- Key point: Sequential phases, a clear division of design versus construction, more owner coordination risk, and a higher chance of adversarial change orders.

2. Design-Build (DB)
- Owner: Defines requirements, usually as performance criteria or bridging documents. Holds a single contract with the design-builder and approves deliverables.
- Design-Builder: Single point of responsibility for both design and construction. Carries design risk, coordination risk and often cost/schedule guarantees. The designer is typically a subconsultant or partner.
- Key point: Errors between design and construction become the design-builder's problem, not the owner's. The owner gives up some design control.

3. Construction Management at Risk (CMAR / CM/GC)
- Owner: Contracts separately with the designer and the CM.
- CM at Risk: Gives preconstruction services (constructability reviews, estimating, scheduling, value engineering). Later acts as general contractor under a Guaranteed Maximum Price (GMP) and holds the trade contracts. Carries the risk of costs above the GMP, except for owner-directed changes.
- Designer: Remains responsible to the owner for the design.
- Key point: Early contractor involvement, a fiduciary-like role during preconstruction, and an at-risk role during construction.

4. Construction Management Agency (CMa / CM as Advisor)
- CM Agent: Acts as the owner's advisor and agent and takes no construction cost risk. Manages schedule, cost and coordination for a fee.
- Owner: Holds the contracts with the trade contractors directly and retains the risk.
- Key point: The CM is not liable for construction performance. Its duty is professional care.

5. Integrated Project Delivery (IPD)
- A multi-party agreement among owner, designer, contractor and key trades.
- Shared risk and reward pools, collaborative decision-making through a core group, and often liability waivers among the parties.
- Key point: Roles are jointly defined. Success relies on trust, transparency and BIM-enabled collaboration.

6. EPC / Turnkey
- EPC Contractor: Responsible for engineering, procurement and construction, often under a lump sum with performance guarantees.
- Owner: Limited involvement and receives a ready-to-operate facility.
- Key point: Maximum risk transfer to the contractor. Common in energy and industrial projects.

7. Public-Private Partnership (P3) / DBFOM
- Private concessionaire: Designs, builds, finances, operates and maintains the asset over a concession period.
- Public owner: Sets output specifications, monitors performance and may make availability payments.
- Key point: Long-term lifecycle responsibility and financing risk sit with the private party.

Influence of Pricing Mechanisms
The pricing mechanism also shapes who carries cost risk:
- Lump Sum / Fixed Price: The contractor carries the cost overrun risk.
- Cost-Plus / Cost-Reimbursable: The owner carries cost risk and needs strong audit rights.
- GMP: Shared. The contractor is at risk above the cap, and savings may be split.
- Unit Price: The owner carries the quantity risk and the contractor carries the unit cost risk.
- Target Cost / Incentive: Pain/gain sharing aligns the parties' interests.

Tools That Support Role Clarity
- RACI / Responsibility Assignment Matrix
- Contract organization charts and communication protocols
- Submittal and RFI procedures
- Risk register with assigned owners
- Change order and claims procedures
- Partnering charters and kickoff meetings

Exam Tips: Answering Questions on Roles and Responsibilities by Contract Structure

1. Identify the structure first.
Before reading the answer choices, decide which delivery method the scenario describes. Look for clue words:
- "single point of responsibility" means Design-Build
- "GMP" and "preconstruction services" mean CMAR
- "advisor" and "no cost risk" mean CM Agency
- "multi-party agreement" and "shared risk pool" mean IPD

2. Ask who holds the contract.
Privity determines responsibility. In DBB, the contractor cannot direct the designer, so issues go through the owner. In DB, the design-builder controls the designer.

3. Follow the design risk.
If the owner furnished the design (DBB, CMAR), design errors are generally the owner's risk toward the contractor. In DB and EPC, the contractor owns them.

4. Means and methods belong to the contractor.
In almost every structure, construction means, methods, sequencing and site safety belong to the contractor unless the contract states otherwise.

5. Separate agency from at-risk roles.
A CM Agent advises and carries no financial risk. A CM at Risk guarantees price. Questions often test this distinction.

6. Choose the PMI-aligned behavior.
When the question asks what the project manager should do FIRST, prefer these actions:
- review the contract
- consult the responsibility matrix
- communicate with stakeholders
- follow the formal change or claim process
Avoid answers that bypass the contract, act unilaterally or assign blame before analysis.

7. Match the structure to the owner's situation.
- An owner with little in-house expertise who wants one point of contact suggests DB or EPC.
- An owner who wants design control and competitive pricing suggests DBB.
- An owner who wants early contractor input and price certainty suggests CMAR.
- A complex, collaborative project suggests IPD.

8. Watch for distractors.
Answers that assign responsibility to a party with no contractual relationship are usually wrong. An example is a subcontractor being directly accountable to the owner in DBB.

9. Link pricing to risk.
If a question mixes structure and pricing, consider both. For example, DB with lump sum gives very high contractor risk, while CMA with cost-plus gives very high owner risk.

10. Collaborative models favor joint resolution.
In IPD or partnering scenarios, the best answer usually involves the core team deciding together, not one party acting alone.

Quick Memory Aid
- DBB: Owner coordinates, designer designs, contractor builds.
- DB: One team, one contract, one throat to choke.
- CMAR: Advisor first, builder later, at risk for the GMP.
- CMa: Advisor only, owner keeps the risk.
- IPD: Everyone shares risk and reward.
- EPC/Turnkey: Contractor delivers the keys.
- P3: Private party designs, builds, finances and operates for decades.

Conclusion
Knowing roles and responsibilities by contract structure lets you predict where risk lands, who must act, and how disputes should be handled. On the PMI-CP exam, answer these questions in four steps:
1. Identify the delivery method.
2. Trace the contractual relationships.
3. Allocate design and cost risk correctly.
4. Choose the response that follows the contract and collaborative project management practice.