Operating time

Operating time is a time interval, when one of the contradiction requirements must be met.

Overview

The operating time is a concept used in ARIZ. It is defined in Step 2.2 of the algorithm. Its purpose is to identify the time resources of the system.

The operating time is most simply defined as the time in which the conflict identified in the problem model occurs.

According to the previously formulated contradiction, the system faces two opposing requirements. Operating time 1 (OT-1) is the period during which the first requirement of the system is met, while operating time 2 (OT-2) is the period during which the second requirement occurs.

It is essential to determine whether these zones are separated or overlapping.

If these times are different, the contradiction can be resolved by separating the contradictory requirements in time. If the times overlap, the separation is not possible hence a different strategy is required.

Creating sketches that clearly highlight OT-1 and OT-2 is recommended. In fact, Altshuller considered such sketches mandatory during this step.

Altshuller recommended a deeper time analysis by examining three distinct phases:

before the conflict,
during the conflict, and
after the conflict.

Analysing the first phase enables the implementation of preventive measures ahead of time. Analysing the third phase allows for actions aimed at eliminating the consequences of the conflict.

Although in some projects the before and/or after phases may not be applicable, considering this structure can help identify a broader range of time-related resources, often leading to more effective and robust solutions.