The paper discusses the identification of common business process design-time problems using Yet Another Workflow Language (YAWL). The approach proposed by the authors is based on the creation of business process in the YAWL environment in order to simulate the process model which could resolve some of the design-time problems, i.e., possible bottlenecks, as well as provide hints on how to correct initial process. The simulation is done using process mining software “ProM Framework” and the Colored Petri nets simulation and analysis framework “CPN Tools”. The process design with YAWL is done with respect to Business Process Execution Language (BPEL) requirements, thus later allowing the transformation from YAWL to BPEL via the intermediate structure. The examples show that it is possible to identify some of the possible faults of the process using the proposed approach.