Editing Systems development life cycle (section)

=== Design ===
In [[systems design]], functions and operations are described in detail, including screen layouts, business rules, process diagrams, and other documentation. Modular design reduces complexity and allows the outputs to describe the system as a collection of subsystems.

The design stage takes as its input the requirements already defined. For each requirement, a set of design elements is produced.

Design documents typically include functional hierarchy diagrams, screen layouts, business rules, process diagrams, pseudo-code, and a complete [[data model]] with a [[data dictionary]]. These elements describe the system in sufficient detail that developers and engineers can develop and deliver the system with minimal additional input.