Design-Bid-Build
Design-Bid-Build (DBB) is a traditional project delivery method in construction and engineering where the design phase is completed separately before contractors bid on the project, followed by construction. It involves sequential stages: an owner hires a designer to create full plans and specifications, then solicits bids from contractors to build based on those designs. This linear approach separates design and construction responsibilities, with the owner managing contracts with both parties.
Developers should learn DBB when working on construction software, project management tools, or in industries like architecture, engineering, and construction (AEC) to understand standard workflows and compliance requirements. It's used for public projects, large-scale infrastructure, or when owners prioritize cost certainty and competitive bidding, but it can lead to longer timelines and less collaboration compared to integrated methods.