The paper addresses the field of Process Optimization in Slovenian companies, and their attitude toward optimization approaches. A survey was conducted, including professionals from companies, as well as students, examining approaches to assure business process quality, its validation and optimization, containing several methods. Survey results, both in companies (24 participants) and among students (24 participants) indicate that, although a combination of methods provides the best results, modeling, KPI identification and simulation are the best indicators of process strengths and weaknesses, as well as optimization potentials. Therefore, the research was complemented with a review of 5 available modeling and simulation tools, providing evaluation and comparison. To get insight into which of the tools best supports the optimization process, a comparative analysis was conducted, identifying key differences between them, and providing suggestions for optimization enhancement in companies.
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