Abstract:

The paper presents results of studies on modeling and characteristics investigation of business processes in a clothes clean&rental company warehouse. Business processes are mainly related to the activity of warehouse employees. Formal business process models are discussed and presented in the form of business process diagrams. Warehouse processes are aimed at streamlining and systematizing the activities carried out as part of warehouse management of workwear in Zwolen (Poland). Warehouse processes have been optimized and designed in accordance with standard procedures performed in the warehouse. The following models of business processes were developed: demand for clothing - activities within the process are carried out by the warehouse employee at the moment when the demand for clothing appears in the system (the emergence of clothing demand is a consequence of other business processes or decisions made at quality control desk), taking clothes into the warehouse (activities within the process are carried out by the warehouseman when there is a need to accept goods for storage; the result of activities is the full acceptance of clothing for the magazine), order to the warehouse (activities within the process are carried out, in the event of a justified need to order the additional items of clothing) and warehouse inventory (activities within the process are carried out when there is a need to conduct an inventory of the whole warehouse or element of the warehouse).

Supply flow streams have been defined for warehouse work. Times and costs of task implementation were assigned to individual activities in business process diagrams. The times of actions are of stochastic nature. Event attributes in diagrams were also defined. Control flows in the diagrams are determined in accordance with the previously tested probability distributions.

In the ARIS environment, to simulate modeling, simulation and analysis of business processes, a simulator of the functioning of the warehouse was built based on and constructed business process diagrams. Dynamic characteristics (in relation to personal resources, times and costs) of the functioning of the warehouse based on numerous simulation experiments were presented.