Using of state approach in process modelling in civil engineering

Process modelling has become an integral part of the field of civil engineering, especially due to the need to ensure a formal framework for the field. Due to the huge financial flows within the AECO industry and the importance of the industry, it is not possible to carry out individual processes on an ad hoc basis, but it is necessary to have them properly mapped - and this is exactly what the process models are for. Traditional modelling methodologies and tools are used for process modelling, especially BPMN. Despite the fact that this is a sophisticated and robust methodology, it turns out that it is not always appropriate, especially in cases where the use of the behavioral approach itself, i.e., the approach that perceives the process as a sequence of activities, fails. These are, for example, situations where we are not able to precisely define the sequence of individual activities. The behavioral approach also does not consider in-process measurement or continuous improvement, because it does not monitor any parameters, but only describes follow-up activities. It is therefore necessary to consider a different approach which would perceive the process other than as a simple sequence of actions and activities. One of the possible approaches is the state approach, which perceives the process as a transition between the initial and final state, or between individual intermediate states. This approach has been developed by the authors for several years, the application in the AECO industry is a logical application of the approach, which could mean its significant expansion, especially if the condition of improving software support for this approach to modelling is met. The state approach in the AECO industry has the potential to bring the possibility of effective process management, even those that pose a problem for behaviorally oriented methodologies. At the same time, it is possible to count on a tool that will enable the measurement and evaluation of processes, both individually and within statistical processing. This work provides basic considerations on how the state process can be incorporated into the AECO industry.