Warnier-Orr Diagram

Warnier-Orr Diagram technique is also a system design and program design technique.
The basic building blocks are;

• Process
• Decision
• Iteration

Advantages of Warnier-Orr Diagram

• This diagrams are used by analysis to design new systems and to document the existing systems.
• It provides good data structure documentation.
• The technique is best suited for small problems.

Disadvantages of Warnier-Orr Diagram

• This diagrams don't focus conditional logic.
• It can only represent hierarchical data structures.