Plan Driven Development
Plan-driven development is a software engineering methodology characterized by comprehensive upfront planning and the sequential execution of distinct project phases. Frequently associated with the waterfall model, this approach structures the development lifecycle into clearly defined stages, typically encompassing requirements gathering, system design, implementation, testing, and deployment. The core tenet of this methodology is that each phase must be substantially completed and verified before the next phase begins, ensuring that deliverables are well-defined and traceable from the outset.
Characteristics and Workflow
The process relies on detailed documentation and strict adherence to initial specifications. Requirements are fully analyzed and documented before any coding commences, which minimizes ambiguity but reduces flexibility for changes later in the cycle. Each stage produces specific artifacts, such as requirement specifications or design documents, that serve as inputs for the subsequent phase. This linear progression ensures that progress is measurable and that the final product aligns closely with the original project scope.
Context and Applicability
While effective for projects with stable and well-understood requirements, plan-driven development is often contrasted with agile methodologies that prioritize iterative development and adaptability. In the context of AI agents, this approach may be applied to the development of the agent’s underlying architecture or the integration of external tools, where precise control over system behavior and safety constraints is critical. However, it is less suited for domains requiring rapid experimentation or where requirements evolve dynamically during the development process.