In the process analysis, the process segments of the time studies are calculated or evaluated without reference to a unit with regard to their share in the total recording time, and their value added in the process.
While the proportion is to be clearly defined mathematically, the allocation to the criteria main process, secondary process (partly value-adding) or not value-adding is to be regarded as a “flowing transition”. First, the following definition applies:
Main process: Activities that are directly related to the performance of the work task. As a rule, these activities offer little potential for improvement.
Secondary process (partly value-adding): Activities that indirectly belong to the fulfilment of the work task and are variable in their expenditure. These activities offer rationalization approaches that can be realized through varying degrees of effort.
Non-value-adding activities: Activities that do not directly belong to the work task and usually cause additional work. These activities have the greatest potential for improvement, often through organisational changes or small investments.