Final answer:
The design phase is responsible for developing detailed specifications for a new or revised system, turning a general design concept into a detailed design through prototyping, testing, and refinement.
Step-by-step explanation:
The phase of development tasked with the purpose of developing specifications for a new or revised system is the design phase. During this phase, a team transitions from a general design concept to a detailed design. This involves creating a design architecture, which assigns the functional elements of a product to its physical components, as referenced by Eppinger and Ulrich (2003).
The detailed design includes all technical specifications, materials, components, and subsystems. This crucial step has a significant influence on the project's success, as a poorly executed detailed design can undermine a well-conceived design concept. The design team employs various strategies, such as prototyping, testing, and refinement, often going through multiple iterations to hone the design based on performance and to rectify any unforeseen design challenges.