Using Structured Design

Using Structured Design by Wayne P. Stevens 1981 

This book is a practical guide to structured design, a methodology for developing reliable and maintainable software systems through systematic decomposition and clear organization.

Stevens builds on earlier work in structured programming and introduces techniques for transforming system requirements into well-organized program structures. The central idea is to break complex systems into smaller, manageable modules with clearly defined responsibilities.

Key concepts include:

Top-down design: starting from a high-level system overview and progressively refining into detailed components
Modularity: dividing systems into independent, cohesive modules
Coupling and cohesion: minimizing interdependence between modules while maximizing internal consistency
Data flow analysis: using tools like data flow diagrams (DFDs) to model how information moves through a system

The book emphasizes the importance of design before coding, showing how careful planning improves readability, maintainability, and scalability of software. It also introduces practical tools and notations for documenting system structure and guiding implementation.

Stevens provides examples and case studies to illustrate how structured design principles can be applied in real-world software development, particularly in large systems where complexity must be controlled.