Różnice między wybraną wersją a wersją aktualną.
| Nowa wersja | Poprzednia wersja | ||
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pl:dydaktyka:dss:lab4 [2017/11/13 21:13] kkluza utworzono |
pl:dydaktyka:dss:lab4 [2019/06/27 15:50] (aktualna) |
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| ===== Step by step simulation ===== | ===== Step by step simulation ===== | ||
| - | Please import the model to Signavio and view it in the graphics editor. | + | Please import the model to Signavio and view it in the editor. |
| - | Then, in the upper right corner select "Simulation" from the drop-down list. | + | Then, select "Simulation" from the drop-down list in the upper right corner. |
| - | To start the simulation step by step (1), press the "Play" button (2) | + | To start the step by step simulation (1), press the "Play" button (2). |
| {{:pl:dydaktyka:bim:lab3_2014:step1.jpg?direct&600|}} | {{:pl:dydaktyka:bim:lab3_2014:step1.jpg?direct&600|}} | ||
| - | When you run the simulation, you can see the process flow -- blue bars (on transitions) or borders (on jobs, goals, and other items). If the strip or border is filled, the transition or task is completed if it is not completed - it is planned to be executed in the next order. To perform a task or transition, click on the unbilled bar or border. When the XOR is reached, the unused border appears on more than one transition. In this case, choose one of the tracks that the process can follow -- by clicking on one of the transitions. When you reach the AND gate, the empty border appears on several tasks -- in this case, each of them must be completed. | + | When you run the simulation, you can see the process flow -- blue arrows (on transitions) or borders (on jobs, goals, and other items). If the arrow or border is filled, the transition or task is completed. If it is not completed -- it is planned to be executed next. To perform a task or transition, click on the arrow or border. When the XOR is reached, the border appears on more than one transition. In this case, choose one of the flows that the process can follow -- by clicking on one of the transitions. When you reach the AND gate, the border appears on several tasks -- in this case, each of them must be completed. |
| {{:pl:dydaktyka:bim:lab3_2014:step2.jpg?direct&600|}} | {{:pl:dydaktyka:bim:lab3_2014:step2.jpg?direct&600|}} | ||
| Linia 20: | Linia 20: | ||
| ===== Simulation Scenario ===== | ===== Simulation Scenario ===== | ||
| - | Please create a basic simulation scenario with the following parameters: | + | Create a basic simulation scenario with the following parameters: |
| * Costs: | * Costs: | ||
| * The cost of the "Book tickets and hotel" and "Pay for travel" tasks due to external intermediaries is € 0.05. | * The cost of the "Book tickets and hotel" and "Pay for travel" tasks due to external intermediaries is € 0.05. | ||
| Linia 63: | Linia 63: | ||
| | 4. | Planer | 2 resources | Mon-Fri 40:00 hours per week | €20.00 | | | 4. | Planer | 2 resources | Mon-Fri 40:00 hours per week | €20.00 | | ||
| - | ==== Simulation of single pass ==== | + | ==== Simulation of single case ==== |
| - | The simulation of a single waveform (1) is started by pressing the "Play" button (2). Select one of the scenarios (3) that you created, and select whether to run another process instance ("Loop") or "Single run" (4) after the run. | + | The simulation of a single case (1) is started by pressing the "Play" button (2). Select one of the scenarios (3) that you created, and select whether to run another process instance ("Loop") or "Single run" (4). |
| {{:pl:dydaktyka:bim:lab3_2014:onecase2.jpg?direct&600|}} | {{:pl:dydaktyka:bim:lab3_2014:onecase2.jpg?direct&600|}} | ||
| - | In the case of this simulation, there is no need to skip further tasks and pass. In case of tasks it is done automatically, but in the case of flows it is possible to manually select the path on the gate, and if we do not do it within the time set by the clock (1), the selection will be drawn according to the probabilities defined in the scenario. On the left is a panel (2) showing the current cost and execution time of the process instance, resource usage time, and bottleneck if it has been detected so far. On the other hand, when we run the next run, we get the result of the last run. | + | In the case of this simulation, there is no need to skip further tasks and flows. In case of tasks, it is done automatically. In the case of sequence flows, it is possible to manually select the path on the gate, and if we do not do this within the time set by the clock (1), the selection will be drawn according to the probabilities defined in the scenario. On the left, there is a panel (2) showing the current cost and execution time of the process instance, resource usage time, and bottleneck if it has been detected so far. On the other hand, when we run the next run, we get the result of the last run. |
| {{:pl:dydaktyka:bim:lab3_2014:onecase3.jpg?direct&600|}} | {{:pl:dydaktyka:bim:lab3_2014:onecase3.jpg?direct&600|}} | ||
| - | ===== Multi-pass simulation ===== | + | ===== Multiple case simulation ===== |
| Simulating multiple runs for the selected scenario is started as before using the "Play" button. The new element is "Duration" (1), in which we choose how long the simulation takes. | Simulating multiple runs for the selected scenario is started as before using the "Play" button. The new element is "Duration" (1), in which we choose how long the simulation takes. | ||
| - | After the simulation for each task or event, you can see how many instance instances of the process were executed. You can also see how many tasks in different instances of the process have been completed and are waiting for execution (1), as well as how many tasks are currently being performed in the task (2). | + | After the simulation for each task or event, you can see how many instances of the process were executed. You can also see how many tasks in different instances of the process have been completed and are waiting for execution (1), as well as how many tasks are currently being performed in the task (2). |
| {{:pl:dydaktyka:bim:lab3_2014:multiple3.jpg?direct&600|}} | {{:pl:dydaktyka:bim:lab3_2014:multiple3.jpg?direct&600|}} | ||
| - | You can also see how many requests for a business trip have been finalized as rejected (1) or accepted (2) and generated a simulation report (3). | + | You can also see how many requests for a business trip have been finalized as rejected (1) or accepted (2) and generate a simulation report (3). |
| {{:pl:dydaktyka:bim:lab3_2014:multiple4.jpg?direct&600|}} | {{:pl:dydaktyka:bim:lab3_2014:multiple4.jpg?direct&600|}} | ||
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| ====== Assignment ====== | ====== Assignment ====== | ||
| - | ===== Simulation of a laboratory model ===== | + | ===== Simulation of the travel request model ===== |
| - | Please perform the multi-pass simulation several times in accordance with the described scenario for duration: 30 days. | + | Please perform the multiple case simulation several times following the described scenario for the duration: 30 days. |
| - | Then compare the simulation results, analyze them and generate a simulation report. | + | Then, compare the simulation results, analyze them and generate a simulation report. |
| - | Then in the groups, please discuss the conclusions of the simulation. | + | In the groups, discuss the conclusions of the simulation. |
| ===== Model optimization ===== | ===== Model optimization ===== | ||
| - | Using the tools to simulate and considering the development of the company should consider the improvement of the process. | + | Considering the need for company development, using the tools to simulate the process, propose the improvement of the process. |
| Please suggest possible solutions to improve the process, taking into account the following assumptions: | Please suggest possible solutions to improve the process, taking into account the following assumptions: | ||
| * The frequency of the "Travel request submitted" event will increase to 100 times per week. | * The frequency of the "Travel request submitted" event will increase to 100 times per week. | ||
| - | * The company may employ 1 additional person with a salary of 20€/hour. | + | * The company may employ one additional person with a salary of 20€/hour. |
| * In the company you can transfer funds up to 10% for each resource. | * In the company you can transfer funds up to 10% for each resource. | ||
| - | * The company may propose changes in the number of human resources and their working time (as far as possible, these should be cautious decisions, as employees do not perform only this process, in particular, the Management Board will reluctantly attempt to change the number of employees who do basic work in company in other processes). | + | * You can propose the changes in the number of human resources and their working time (as far as possible, these should be cautious decisions, as employees do not perform only this process). In particular, the company board will reluctantly attempt to change the number of employees who work in other processes. |
| - | * The company may propose process changes, in particular: | + | * You may also propose other process changes, e.g.: |
| * assignments of tasks (but it must be justified that it is possible and appropriate), | * assignments of tasks (but it must be justified that it is possible and appropriate), | ||
| - | * break up tasks into smaller ones or groupings into larger ones, the total time for such grouped tasks must be the same as the original ones). | + | * break up tasks into smaller ones or grouping some tasks into larger ones, but the total time for such a grouped task must be the same as the sum of times of the original ones. |
| - | The resulting process should have minimized bottlenecks, \\ | + | The bottlenecks in the process should be minimized i.e. |
| - | i.e. it must be possible to run the simulation for a minimum of 90 days. | + | it must be possible to run the simulation for a minimum of 90 days. |
| - | ^ In the group report should be proposed to the management of the company \\ appropriate changes along with the justification ^ | + | ^ In the group report for the board of the company, you should propose the appropriate changes along with the justification ^ |
| The report should include a systematic description of the proposed changes with justification: | The report should include a systematic description of the proposed changes with justification: | ||
| * the reason for the change (resulting from the simulation analysis before the change); | * the reason for the change (resulting from the simulation analysis before the change); | ||
| - | * anticipated effects of the change (which will improve); | + | * the anticipated effects of the change (what will be improved); |
| - | * the above items should be backed up by the corresponding screenshots of the simulation or simulation report; | + | * provide the appropriate screenshots (from simulation or the simulation report) for the items mentioned above; |
| - | * you can include relevant graphs illustrating the scope of improvement of various process parameters with the changes introduced. | + | * you can include relevant charts/graphs illustrating the scope of improvement of various process parameters with the changes introduced. |
| - | ** The report should be convincing and understandable to a person who \\ | + | ** The report should be convincing and understandable to a person who does not know the tools for process simulation. ** |
| - | does not know the tools for process simulation. ** | + | |
| Max. report length is 5 pages A4 :!: | Max. report length is 5 pages A4 :!: | ||
| - | Report as attachments (separate files): | + | As the attachments to the report please send (separate files): |
| - | * models, | + | * the models, |
| - | * list of necessary simulation parameters for each model (or screenshots with parameters) so that the simulation can be repeated, | + | * the list of necessary simulation parameters for each model (or screenshots with these parameters) so that the simulation can be repeated, |
| - | * automatically generated report from the simulation in Signavio. | + | * the automatically generated report from the simulation in Signavio. |
