Number of gates
The number of gates used is based on the pressure to fill the cavity.  In general, the minimum number of gates to fill the cavity is selected.
Position of gates
The position of the gate is determined by the flow balancing principle.
Flow pattern
The mold should fill with a straight fill pattern with no changes in direction during filling.

Runner Design
The runner system is designed to achieve the required filling pattern in the cavity.
Sequence of Analysis
The procedure of the mold design always starts with the cavity.

Determine the design criteria for the project
Use previous experience of analyst
Discuss the project with all disciplines involved in the project
Use Moldflow Design Principles
Use Moldflow Design Rules with the software
Interpret results and make changes where necessary
Discuss changes with all disciplines involved in the project
Repeat Moldflow analysis to ensure acceptable results