Abstract: Resource usage calculation for process simulation (such as business process simulation). For each resource used by a simulated process, a usage counter object (or similar data structure) is used. In one embodiment, the usage counter object for each resource includes a list of time slots sorted by start times, and another list of time slots sorted by end times, to keep track of currently-scheduled time slots for this particular resource. In another embodiment, the usage counter object for each resource includes a list of time slots, sorted by start times and having associated end times, to keep track of the currently-scheduled time slots for this particular resource. The usage counter objects also store a count of how many units of this resource are currently in use, and a count of how many users are currently using the resource. These counters are updated using the sorted time slot lists.

Abstract: An online simulation model optimization receives data representative of a business process captured in real time to form instance metrics, aggregates the instance metrics to form aggregated instance metrics, and uses a particle filter for filtering the aggregated instance metrics to form calibrated data. The process iteratively computes an output value using the calibrated data, by a simulation model. Responsive to a determination that the output value is not within a predetermined tolerance of an error threshold, the process adjusts a weight previously assigned to an aggregated instance metric by the particle filter to form recalibrated data, whereby the recalibrated data is submitted to the simulation model for computation. Responsive to a determination that the output value is within the predetermined tolerance, the process sends a result to a correction selection process of a business process optimizer, the result comprising the output value, the calibrated data, and/or the recalibrated data.

Abstract: Embodiments of the present invention address deficiencies of the art in respect to decision node processing in a business process model and provide a method, system and computer program product for linked decision nodes in business process models. In an embodiment of the invention, a business process model simulation method can be provided. The method can include loading a business process model for simulation, designating a decision node in the business process model as a master decision node and linking another decision node in the business process model as a slave decision node to the master decision node. The method further can include simulating the master decision node to select an output pin and storing the selected output pin in association with the master decision node, and applying the selected output pin in the slave decision node when arriving at the slave decision node during the simulation without simulating the slave decision node.

Abstract: Resource usage calculation for process simulation (such as business process simulation). For each resource used by a simulated process, a usage counter object (or similar data structure) is used. In one embodiment, the usage counter object for each resource includes a list of time slots sorted by start times, and another list of time slots sorted by end times, to keep track of currently-scheduled time slots for this particular resource. In another embodiment, the usage counter object for each resource includes a list of time slots, sorted by start times and having associated end times, to keep track of the currently-scheduled time slots for this particular resource. The usage counter objects also store a count of how many units of this resource are currently in use, and a count of how many users are currently using the resource. These counters are updated using the sorted time slot lists.

Abstract: Embodiments of the present invention address deficiencies of the art in respect to event driven simulation and provide a method, data processing system and computer program product for mapping a process model for use in a generic simulation engine. In an embodiment of the invention, a generic model simulation method can include mapping a specifically formatted process representation into a generic process model, and providing the generic process model to a simulation engine. The method further can include executing a simulation on the generic process model in lieu of executing the simulation on the specifically formatted process representation.

Abstract: Embodiments of the present invention address deficiencies of the art in respect to decision node processing in a business process model and provide a method, system and computer program product for linked decision nodes in business process models. In an embodiment of the invention, a business process model simulation method can be provided. The method can include loading a business process model for simulation, designating a decision node in the business process model as a master decision node and linking another decision node in the business process model as a slave decision node to the master decision node. The method further can include simulating the master decision node to select an output pin and storing the selected output pin in association with the master decision node, and applying the selected output pin in the slave decision node when arriving at the slave decision node during the simulation without simulating the slave decision node.

Abstract: Embodiments of the present invention address deficiencies of the art in respect to event driven simulation and provide a method, data processing system and computer program product for mapping a process model for use in a generic simulation engine. In an embodiment of the invention, a generic model simulation method can include mapping a specifically formatted process representation into a generic process model, and providing the generic process model to a simulation engine. The method further can include executing a simulation on the generic process model in lieu of executing the simulation on the specifically formatted process representation.

Abstract: Embodiments of the present invention address deficiencies of the art with respect to event driven simulation and provide a method, data processing system and computer program product for mapping a process model for use in a generic simulation engine. In an embodiment of the invention, a generic model simulation method can include mapping a specifically formatted process representation into a generic process model, and providing the generic process model to a simulation engine. The method further can include executing a simulation on the generic process model in lieu of executing the simulation on the specifically formatted process representation.