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Design–build (or design/build, and abbreviated D–B or D/B accordingly), also known as alternative delivery, [1] is a project delivery system used in the construction industry. It is a method to deliver a project in which the design and construction services are contracted by a single entity known as the design–builder or design–build ...
Design–bid–build is the traditional method for project delivery and differs in several substantial aspects from design–build. [ 1] There are three main sequential phases to the design–bid–build delivery method: [ 2] The design phase. The bidding (or tender) phase. The construction phase.
Project delivery method. Project delivery methods defines the characteristics of how a construction project is designed and built and the responsibilities of the parties involved in the construction (owner, designer and contractor). [ 1] They are used by a construction manager who is working as an agent to the owner or by the owner itself to ...
Construction cost management is a fee-based service in which the construction manager (CM) is responsible exclusively to the owner, acting in the owner's interests at every stage of the project. The construction manager offers impartial advice on matters such as: Optimum use of available funds.
Integrated project delivery ( IPD) is a construction project delivery method that seeks the efficiency and involvement of all participants (people, systems, business structures and practices) through all phases of design, fabrication, and construction. [ 1] IPD combines ideas from integrated practice [ 2] and lean construction.
Early contractor involvement. Early contractor involvement (ECI) is a type of construction contract where the principal contractor is engaged at an early stage in a project to offer input into the design phase. It is in contrast to the design–bid–build model where the contractor is only brought onboard at the end of the design phase.
Build–operate–transfer (BOT) or build–own–operate–transfer (BOOT) is a form of project delivery method, usually for large-scale infrastructure projects, wherein a private entity receives a concession from the public sector (or the private sector on rare occasions) to finance, design, construct, own, and operate a facility stated in the concession contract.
The fast-tracking of the project is therefore achieved through the integration of design and construction phases. Fast-track is more difficult to manage than the traditional design–bid–build process. It requires detailed knowledge of the process, effective planning, integrity and close coordination among the organizations executing the work.