Architect and Engineer’s Spectrum of Engagement under Alternative Delivery Methods: Agreement Negotiation and Formation Implications

Abstract

The proliferation of the several alternatives to the traditional design-bid-build (DBB) project delivery method (PDM), coupled with the ever-increasing demand to reach a faster delivery of construction projects, may commonly result in exposing the architect/engineer (A/E) to various uncertainties at the time of the agreement signature. By shedding light on the relevant criteria underlying these uncertainties, the objective of this paper is to examine the implications of the A/E’s spectrum of engagement under alternative PDMs on the respective design agreement negotiation and formation process. This is primarily achieved by (1) conceptualizing the models pertaining to the A/E’s staging of services under each of the considered PDMs, (2) identifying the parameters/factors that the A/E needs to deal with in order to realistically strategize and organize for its involvement/engagement throughout the project, (3) inferring the expected changes in the staffing requirements, and (4) establishing the foundation for negotiating the agreement for design and construction supervision services. The offered analysis can be viewed as a means for facilitating the negotiation process in light of the several unveiled parameters. It also serves as an eye-opener for the A/E when planning and organizing for the assignment of resources required under each project delivery method and formulating the services’ professional fees proposal.