Turnaround Time (TAT)

In simple terms, turnaround time is the total time needed for an application to provide the required output to the user. From a batch system perspective, turnaround time can be considered the time taken in batch formation and printing of results. The concept of turnaround time overlaps with lead time and contrasts with the concept of cycle time. Turnaround time is expressed in terms of units of time for a specific system state and at times for a given algorithm. Turnaround time varies for different applications and different programming languages.

Many factors influence turnaround time, such as:

• Memory needed for the application
• Execution time needed for the application
• Resources needed for the application
• Operating environment

Turnaround time is an important component in the design of microprocessors, especially for multiprocessor systems. Faster turnaround designs are preferred by hardware design companies, as they lead to faster performance and computing speeds.