BPMN + BPSim PEX Week 2014
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Intro presentation on BPMN and BPSim that I gave at the PEX Week 2014 Workshop
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BPMN + BPSim PEX Week 2014
- 1. Denis Gagné, www.BusinessProcessIncubator.com Chair BPSWG at WfMC Chair BPMN MIWG at OMG Member of BPMN 2.1 RTF at OMG
- 2. Poor Performing Processes May lead to: Delays Back log Refund Claims Angry customers Lost of goodwill (Mission Critical) Lost of lives (Life Critical) Gain Insight: Model and thoroughly analyse business processes in a safe isolated environment prior to Deploying
- 4. What is BPMN? What is BPMN? Business Process Model and Notation BPMN is a standard published by the Object Management Group (OMG). Why BPMN matters? Universal graphical notation for drawing business processes Readily understandable by business stakeholders Aim to bridge the gap from modeling to subsequent implementation Current Status BPMN 2.0 is the current version www.BPMN.org
- 5. Why BPMN? Simple to learn yet powerful enough to depict the potential complexity of most processes Bridges the communication gap that exists between Business, Engineering, Manufacturing, etc. and IT Provides organizations with the capability of defining, understanding and even executing their processes through diagrams Widely accepted and widely supported
- 6. BPMN WIIFM? Clearly capture business process logic using diagrams Learn a universally recognizable process modeling notation Apply best practice by using an industry standard for your process diagrams Learn fundamental and advanced features of the notation Prepare yourself to participate in BPMN modeling project Stay current or update your knowledge of BPMN
- 7. Basic Elements of BPMN Event Activity Gateway The vast majority of BPMN diagrams use a core 10% of total symbols and artifacts Source: zur Muehlen, M, Recker, J; www.bpm-research.com Flow www.BPMNQuickGuide.com
- 9. BPMN Example Send Rejection Letter Verify Employment Close-Out Rejection Loan Request Rejected Loan officer Loan Application [Initial] Record Loan Application Receive Loan Application Loan Application [Rejected] Review Loan Application Request Credit Report Receive Credit Report Send Approval Letter Close-out Approval Loan Request Approved Perform Title Search Review Title Report Underwrite Loan with Terms Loan Underwritter Title Researcher Loan Application [Approved] 1 Hour Time Limit Set with Default Terms www.BPMNWebModeler.com
- 10. www.BPSim.org
- 11. What is BPSim? What is BPSim? Business Process Simulation BPSim is a standard published by the Workflow Management Coalition (WfMC) Why BPSim matters? Allows parameterization of a process model (BPMN, XPDL) for Structural and Capacity Analysis purposes Allows parameterization from different perspectives (Resource, Time, Control, Cost, Property, Priority) for process analysis Current Status BPSim 1.0 is the current version www.BPSim.org
- 12. BPSim Complements existing process modeling standards
- 13. Why BPSim? Encourage wider adoption of simulation within BPM community through a standards led approach Process simulation is a valuable technique to support process design, reduce risk of change and improve efficiency in the organisation Provide a framework for the specification of simulation scenario data and results as a firm foundation for implementation Open interchange of simulation scenario data between modeling tool, simulator, results analysis/presentation tool
- 14. BPSim WIIFM? Process Design & Validation Reducing Risk of Change Predict Business Process Performance (KPIs, SLAs) Decision Support Resource Allocation and Management
- 17. Simulation is often a process of discovery Examine output results Unexpected result are not necessarily a problem Primary reason for your simulation experimentation Need to find an explanation Will provide enlightment of actual process behavior vs assumed process behavior Unexplainable results are a problem
- 18. BPSim Approach Parameterization of Business Process Model (BPMN or XPDL) from different perspectives for process analysis, simulation and optimization purposes P “Separations of Concerns”
- 19. BPSim Scenario Collections of Scenarios containing Collections of Element Parameters Used to provide complementary information to a BPMN or XPDL business process model in the context of process analysis, simulation and optimization (ASO) A collection of Element Parameters augmenting the Business Process Model A Scenario can capture: input parameter specification for ASO (What if); or results from ASO; or historical data from past real world execution of the business process model.
- 20. BPSim Element Parameters Each element parameter of a scenario references a specific element of a process within the business process model Each element of the business process model may be parameterized with zero or multiple element parameters Perspectives P TimeParameters ControlParameters ResourceParameters CostParameters InstanceParameters PriorityParameters
- 21. Demo Send Rejection Letter Verify Employment Close-Out Rejection Loan Request Rejected Loan officer Loan Application [Initial] Record Loan Application Receive Loan Application Loan Application [Rejected] Review Loan Application Request Credit Report Receive Credit Report Send Approval Letter Close-out Approval Loan Request Approved Loan Underwritter Title Researcher Loan Application [Approved] Perform Title Search Review Title Report Goal Underwrite Loan with Terms Explore temporal perspective of the AS-IS process 1 Hour Time Limit BPSim Implementers’ Guide Set with Default Terms
- 22. Demo Send Rejection Letter Verify Employment Close-Out Rejection Loan Request Rejected Loan officer Loan Application [Initial] Record Loan Application Receive Loan Application Loan Application [Rejected] Review Loan Application Request Credit Report Receive Credit Report Send Approval Letter Close-out Approval Loan Request Approved Loan Underwritter Title Researcher Experiment Loan Application [Approved] We will only consider the temporal aspects of the model. Specifically we will look at finding values for these questions: What is the mean cycle time (time-in-system)? What is the mean wait time for each loan as a whole (and broken down by task)? Is the process sustainable, in other words does a backlog of work build up and is all work completed by end of day? Perform Title Search Review Title Report Underwrite Loan with Terms 1 Hour Time Limit Set with Default Terms BPSim Implementers’ Guide
- 23. Demo Send Rejection Letter Verify Employment Close-Out Rejection Loan Request Rejected Loan officer Loan Application [Initial] Record Loan Application Receive Loan Application Loan Application [Rejected] Review Loan Application Request Credit Report Receive Credit Report Send Approval Letter Close-out Approval Loan Request Approved Loan Underwritter Title Researcher Loan Application [Approved] As is Perform Title Search Review Title Report Normally receive about 30 loan applications per days Of these about 8 are approved Underwrite Loan with Terms Work 8 hours per business day 1 Hour Time Limit The particulars of the resource work calendar is not specified in this example as we are assuming all resources are available for the period. BPSim Implementers’ Guide Set with Default Terms
- 24. Temporal Scenario Example Triangular Distribution Mode: 16 minutes as the most likely value Min: 10 Max: 30 Verify Employment Loan officer Request Credit Report Receive Credit Report Title Researcher Loan Underwritter Loan Application [Rejected] 1 Minute Send Approval Letter Triangular Distribution Mode: 5 minutes Min: 4 Max: 6 Perform Title Search truncated normal distribution 1 hour, σ 2 1 Minute Review Loan Application truncated normal distribution 20 minutes, σ 1 Close-Out Rejection Loan Request Rejected 27% truncated normal distribution 5 minutes, σ 0.25 Send Rejection Letter truncated normal distribution 30 minutes, σ 4 Record Loan Application Receive Loan Application truncated normal distribution 30 minutes, σ 4 Loan Application [Initial] Duration: 40 hours Replications: 3 Time unit: minutes Close-out Approval Loan Request Approved truncated normal distribution Loan 10 Application minutes, σ 0.25 [Approved] Review Title Report truncated normal distribution 20 minutes, σ 2 Underwrite Loan with Terms truncated normal distribution 50 minutes, σ 10 1 Hour Time Limit Set with Default Terms 60 minutes 1 Minute
- 25. Temporal Scenario Results Send Rejection Letter Verify Employment Close-Out Rejection Loan Request Rejected Loan officer Loan Application [Initial] 140 Record Loan Application Receive Loan Application 132 131 Loan Application [Rejected] Review Loan Application Request Credit Report 131 Receive Credit Report Send Approval Letter 120 Close-out Approval Loan Request Approved 100 80 Receive Loan Application 60 140 40 120 20 Title Researcher 32 100 0 Loan Underwritter Loan Application [Approved] Repl1 Repl2 Perform Title Search Repl3 70 60 50 40 30 20 10 0 Review Title Report 32 31 80 Loan Request Approved 60 93 90 92 Repl1 Repl2 Repl3 40 20 0 Underwrite Loan with Terms 1 Hour Time Limit Set with Default Terms Loan Request Rejected
- 26. Optimization Selection of a best scenario (with regard to some criteria) from some set of available alternatives Almost impossible without tool support Sub optimization caveat Optimizing the outcome for a subsystem will in general not optimize the outcome for the system as a whole.
- 28. Forecasting and Optimization are Complex
- 29. Expertise vs Experimentation Expert Verify Process Structure and logic Optimization Learning via Experimentations Quantitative Analysis Process Modeling Novice Novice Expert Simulation
- 30. Model Granularity Pick the right level of process model abstraction e.g. What is an atomic task For example a certain level of details may suitable to compare relative throughput of alternative process designs while not be detailed enough to provide reliable prediction of actual throughput
Notas del editor
- Ludic : playful in an aimless way