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The planning, scheduling, evaluation, and controlling of construction tasks and activities to accomplish specific objectives outlined in the contract documents.

 Option 1: agency CM The Construction Management Association of America (CMAA) defines agency CM as a fee-based service in which the construction manager is responsible exclusively to the owner and acts in the owner's best interests at every stage of the project. In this case, the construction manager offers advice uncolored by any conflicting interest because the construction manager does not perform any of the actual construction work and is not financially at risk for it.agency CMA construction management option in which the construction manager acts in the owner's best interests at every stage of the project from design through construction. In this capacity, the construction manager provides only advice and management oversight services to the owner, and has no legal authority, operational responsibility, or financial obligation for the delivery of the design or construction of the project. Therefore, agency-CM is not a project delivery system, but simply a professional service.This arrangement involves three contracts: one between the owner and the designer, one between the owner and the contractor, and one between the owner and the construction manager. The owner hires a designer and a contractor exactly as described under the design-bid-build scenario. In addition, the owner also contracts with a third party, a construction management firm that provides construction management functions but as an independent agent or representative of the owner.

The party responsible for the construction work is still an individual general contractor, and that contractor still carries out construction management functions relative to their internal requirements for managing the project to completion. In some unique situations, the owner may elect to bypass a general contractor and contract directly with several specialty contractors and allow the CM firm to manage each of them. These are called multiple prime contracts.

 Option 2: at-risk CM (also called CM/GC) The CMAA defines the at-risk CM project delivery method as an option that entails a commitment by the construction manager to deliver the project within a guaranteed maximum price (GMP). The construction manager acts as consultant to the owner in the development and design phases but does the work of a general contractor during the construction phase.multiple primeA contracting methodology in which the owner bypasses the use of a general contractor and enters into multiple separate contracts with trade or specialty contractors for the various sections of the work associated with the project, such as concrete, framing, mechanical, and electrical work. Each of the specialty contractors involved becomes a prime contractor on the project.at-risk CMA project delivery method where the construction manager acts as a consultant to the owner in the development and design phases but as the equivalent of a general contractor during the construction phase.In this scenario, there are only two contracts, one between the owner and designer and one between the owner and the at-risk CM.Although this might seem like a tricky relationship to manage, owners are comfortable with it because the at-risk CM is also responsible for performing the construction and carries financial liability for bringing the project in on time and within budget. By contrast, under the agency CM model, which is not classified as a project delivery method, the construction manager is not at risk for the budget, the schedule, or the performance of the work.