Business Process Development: Simulation (Bagian 3 dari Tahapan Pengembangan Proses Bisnis)

Summary of YouTube Video Transcript

Key Concepts:

• Business Process Simulation: Using software (specifically Bizagi) to model and analyze business processes for validation, time analysis, resource allocation, and cost optimization.
• Process Validation: Ensuring the logical correctness of a process model (syntax, grammar, and semantics).
• Time Analysis: Determining the time required for each activity and the overall process duration.
• Resource Analysis: Evaluating the utilization and allocation of resources (human, equipment) within a process.
• Cost Analysis: Calculating the operational costs associated with a process, including fixed and variable costs.
• Bizagi Modeler: A software tool used for business process modeling and simulation.
• Simulation View: The Bizagi interface for setting up and running simulations.
• Token: Represents a single instance of a process being executed (e.g., a patient in a healthcare process).
• Gateway: A decision point in a process where the flow diverges based on conditions.
• Exclusive Gateway: A gateway where only one path can be taken.
• Parallel Gateway: A gateway where multiple paths are executed concurrently.
• Converging Gateway: A gateway that merges multiple paths into one.
• SLA (Service Level Agreement): A commitment to provide a certain level of service within a specified timeframe.
• Utilization: The percentage of time a resource is actively working.
• Fixed Cost: Costs that do not change with the level of production.
• Variable Cost: Costs that vary with the level of production.

1. Introduction to Business Process Simulation

• The video introduces the concept of business process simulation using Bizagi Modeler.
• The speaker emphasizes the importance of simulation to validate process design, analyze efficiency, and optimize resource allocation.
• Simulation helps identify bottlenecks, assess resource utilization (over or under-utilization), and determine service level agreements (SLAs).

2. Objectives of Simulation

• Process Validation: To ensure the process is logically correct and free of errors. This includes checking the syntax (e.g., correct use of connectors) and semantics (e.g., whether the process flow makes sense).
• Time Analysis: To determine the time required for each activity and the overall process duration.
• Resource Analysis: To evaluate the utilization and allocation of resources (human, equipment) within a process.
• Calendar Analysis: (Briefly mentioned) To account for shifting schedules and resource availability.

3. Bizagi Simulation Concepts

• The speaker advises against using complex gateways in Bizagi simulations, as they may not be fully supported.
• The simulation process involves:
  • Ensuring the process model is error-free.
  • Switching to the "Simulation View" in Bizagi.
  • Selecting the type of analysis (process validation, time analysis, resource analysis).
  • Entering data for each element in the process (e.g., number of tokens for the start event, probability distributions for gateways, time durations for activities, resource assignments).
  • Running the simulation.
  • Analyzing the results.
  • Iterating and refining the process model based on the simulation results.

4. Simulation Steps in Detail

• Data Input: Elements highlighted in a bright color in the Simulation View require data input.
  • Start Event: Requires the number of tokens to be initiated (e.g., the number of patients arriving).
  • Gateways: Require probability distributions for each outgoing path (e.g., the percentage of patients classified as high, medium, or low severity).
  • Activities: For time analysis, each activity requires a time duration. For resource analysis, each activity requires resource assignments.
• Running the Simulation: After entering the data, the simulation is run.
• Analyzing Results: The simulation results are displayed in the "Rizal" (Results) section, providing insights into process performance, resource utilization, and costs.

5. Case Study: Emergency Patient Handling Process

• The video uses a case study of an emergency patient handling process to illustrate the simulation process.
• The process involves:
  • A call center receiving emergency reports.
  • A nurse classifying the severity of the patient's condition (high, medium, low).
  • Dispatching appropriate resources (ambulance with different levels of staffing).
  • Treating the patient at the scene or transporting them to the hospital.
• The speaker demonstrates how to model this process in Bizagi and simulate it to identify bottlenecks and optimize resource allocation.

6. Process Validation Example

• The initial simulation reveals that the number of "end" events (patients processed) exceeds the number of "start" events (patients arriving), indicating an inefficiency in the process.
• The speaker identifies a missing converging gateway (parallel gateway) before the "authorize patient" activity.
• Adding the converging gateway ensures that the "authorize patient" activity is only executed when both the patient data has been entered and the patient has arrived.
• After correcting the process model, the simulation shows that the number of "end" events now matches the number of "start" events, indicating a valid process.

7. Time Analysis Example

• The speaker demonstrates how to add time durations to each activity in the process.
• The simulation results show the average, minimum, and maximum time required to handle a patient.
• The speaker uses this information to determine the number of patients that can be handled within a given timeframe (e.g., an 8-hour workday).
• The speaker adjusts the number of tokens (patients) in the simulation to match the desired service level agreement (SLA).

8. Resource Analysis Example

• The speaker demonstrates how to assign resources (call center staff, nurses, doctors, drivers, paramedics, ambulances) to each activity in the process.
• The simulation results show the utilization of each resource.
• The speaker identifies that nurses are over-utilized (98% utilization), while other resources are under-utilized.
• The speaker reallocates tasks to balance the workload and reduce nurse burnout. For example, the task of entering patient data is reassigned from nurses to receptionists and call center staff.
• The speaker adjusts the number of resources to optimize utilization and minimize costs.
• The speaker mentions general utilization guidelines:
  • Top Management: 65-75%
  • Middle Management: 75-85%
  • Clerical Staff: 85-95%

9. Cost Analysis Example

• The speaker demonstrates how to add cost information to each resource (e.g., salary, hourly rate, per-transaction cost).
• The simulation results show the total operational cost of the process.
• The speaker uses this information to make informed decisions about resource allocation and process optimization.
• The speaker distinguishes between fixed costs (e.g., salaries) and variable costs (e.g., fuel).

10. Notable Quotes

• "Saya ngurusin 100 Pasien itu kecapean saya, capeknya saya seperti ngurusin 146 pasien ini nggak efisien." (Handling 100 patients is exhausting, my exhaustion is like handling 146 patients, this is not efficient.)
• "Sebenarnya bukan masalah karena masalah ada penutup atau enggak Pak, Tapi itu perlu sinkronisasi Pak." (It's not really a problem because there is a closing or not, Sir, but it needs synchronization, Sir.)

11. Conclusion

• The video provides a comprehensive overview of business process simulation using Bizagi Modeler.
• The speaker demonstrates how to use simulation to validate process design, analyze efficiency, optimize resource allocation, and calculate costs.
• The case study of an emergency patient handling process illustrates the practical application of simulation in a real-world scenario.
• The speaker emphasizes the importance of iterative refinement and continuous improvement based on simulation results.