Components of a scheduling system rev 2015 slide show
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The document outlines the essential components of a scheduling system, focusing on elements such as calendars, networks, activities, relationships, algorithms, constraints, and resources. It discusses the complexities of assembling schedules and the challenges posed by variations in scheduling software, including resource scheduling difficulties and the need for standards. Recommendations for future improvements include certifying scheduling algorithms, enhancing visibility, and providing operator training.
Components of a scheduling system rev 2015 slide show
- 1. Basu Technology, Inc. 1 Components of a Scheduling System Abhi Basu June 2004 abhibasu@basutech.com
- 2. Basu Technology, Inc. 2 Components of a Scheduling Tool Calendar Network Activity Relationship Algorithm Scheduling Leveling Constraints Resources To understand CPM Scheduling calculations, you need to understand the components of the scheduling systems Stripping aside the bells & whistles, there are 5 main components that make up the scheduling system.
- 3. Basu Technology, Inc. 3 Assembling a Schedule - Calendar Calendar The first component is the calendar
- 4. Basu Technology, Inc. 4 Assembling a Schedule - Activities Calendar Activities The next component is the network with the sub-component – activity and ….
- 5. Basu Technology, Inc. 5 Assembling a Schedule - Relationships Calendar Relationships ……. relationship
- 6. Basu Technology, Inc. 6 Assembling a Schedule - Network Calendar Network Activities and Relationships together make up the network
- 7. Basu Technology, Inc. 7 Assembling a Schedule – Forward Pass Calendar Network Calculation Algorithm The algorithm comprises of a forward pass and a backward pass
- 8. Basu Technology, Inc. 8 Assembling a Schedule – Forward Pass Calendar Network Calculation Algorithm
- 9. Basu Technology, Inc. 9 Assembling a Schedule – Backward Pass Calendar Network Calculation Algorithm
- 10. Basu Technology, Inc. 10 Assembling a Schedule – Backward Pass Calendar Network Calculation Algorithm
- 11. Basu Technology, Inc. 11 Assembling a Schedule Calendar Network Calculation Algorithm Float
- 12. Basu Technology, Inc. 12 Assembling a Schedule Calendar Network Calculation Algorithm
- 13. Basu Technology, Inc. 13 Assembling a Schedule Calendar Network SNET Applying a Constraint Constraints restrict the movement of activities on the calendar There are categories of constraints such as date constraints and float constraints etc.
- 14. Basu Technology, Inc. 14 Assembling a Schedule Calendar Network SNET Applying a Constraint Float Addl. Float
- 15. Basu Technology, Inc. 15 Assembling a Schedule Calendar Network 5-Day Week Calendar
- 16. Basu Technology, Inc. 16 Assembling a Schedule Calendar Network 5-Day & Weekend Calendars Multiple calendars cause anomalies in float calculations
- 17. Basu Technology, Inc. 17 P3 MSPSureTrakP3e Network Components Activities Relationship Calendars Constraints Task Dependent Resource Dependent Level of Effort Start Milestone Finish Milestone Task Independent Meeting Start Milestone Finish Milestone Hammock WBS Fixed Duration Fixed Unit Fixed Work Finish to Start Start to Start Finish to Finish Start to Finish Finish to Start Start to Start Finish to Finish Start to Finish Finish to Start Start to Start Finish to Finish Start to Finish Finish to Start Start to Start Finish to Finish Start to Finish Activity Relationships Resource Shifts Duration Type Fixed Units/Time Fixed Units & Duration/Time Fixed Units Fixed Duration & Units Task Project Resources Task Dependent Independent Meeting Start Milestone Finish Milestone Start Flag Finish Flag Hammock WBS Early Late Start On Mandatory Expected Finish ZFF/ZTF Start On Start On or After Start On or Before Finish On Finish On or After Finish On or Before Start Finish As late as possible Planning Units Activity Resource Activity Resource Day, Week, Month Must Start On Start No Earlier Than Start No Later Than Must Finish On Finish No Earlier Than Finish No Later Than As Soon As Possible As Late as possible Early Late Start On Mandatory Expected Finish ZFF/ZTF Hour, Day Hour, Day, Week, Month, Year Estimated Hour, Day Variations in the Internals of Scheduling Packages
- 18. Basu Technology, Inc. 18 Variations - Continued Scheduling and Resource Leveling Algorithms Updating Percent Completion and ETC Calculations Large Impact on Results
- 19. Basu Technology, Inc. 19 Resource Scheduling Calendar Resource Scheduling adds an order of magnitude difficulty
- 20. Basu Technology, Inc. 20 Additional Computational Complications Resource Limits and Prioritization Resource dependent task durations Incompatible Resource Calendars Departure from CPM Scheduling basics At least 3 dimensions are added to the calculations
- 21. Basu Technology, Inc. 21 System Has Become Opaque Transparency Repeatable Results Solvability The basis of calculations are not easy to decipher Difficult to do objective independent analysis and verification System is used for other goals such as project administration which may conflict with the goals of CPM scheduling
- 22. Basu Technology, Inc. 22 Tasks Ahead Certify the scheduling algorithms Fix variations in scheduling packages Improve visibility tools Establish Standards for Usage Require training and certification for operators Research / Establish Additional Metrics