Gane-Sarson Diagrams have an added capability that many others do not. This is that they show the storage, exchange, and alteration of data and resources throughout the diagram. In most Gane-Sarson diagrams, the information released at the end of the process is different than the information received at the beginning of the diagram.

Typical Uses

Gane-Sarson diagrams should be used any time resources or information is being moved or changed throughout the course of a process. These diagrams are made especially for this and can show data movement in a relatively simplistic manner.

Best Practices

• Start the diagram. Gane-Sarson Diagrams always begin with an outside entity. This is represented by a square and should be placed at the top or right hand side of the paper to signify a starting point. You may choose to label what the outside entity is.
• Make connections. Use lines with arrows on the end to show the direction and path of the information. The arrows should link each symbol.
• Add to the diagram. Throughout the course of the diagram there should be processes, represented by rectangles. You must name each rectangle with the title of the process it entails. This allows you to know exactly what is occurring along the way.
• Data storage. An open ended rectangle represents data storage. The right side is left open while a number is placed on the left side. This number helps you to identify between data storage and keeps things organized.
• Finish the diagram. At the end of the diagram add another square or outside entity. Once the system is concluded the resources or information is released in its new, altered state.
• Verify accuracy. Consult with coworkers or team members to ensure that your diagram is accurate.