PhD Day 2014

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Slides of my presentation at our faculty's PhD Day, 23 May 2014, Gent, B

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PhD Day 2014

  1. 1. 1/23 www.janclaes.info FACULTY OF ECONOMICS AND BUSINESS ADMINISTRATION Jan Claes Teaching assistant : PhD 2009 – 2015 Supervisors : Geert Poels & Frederik Gailly Why do people struggle with the complexity of constructing a process model?
  2. 2. 2/23 www.janclaes.info Business Process Modeling (BPM)
  3. 3. 3/23 www.janclaes.info Business Process Modeling (BPM) Assumptions  Constructing process models is useful  Process model quality is important Business Process Modeling (BPM)  Process model quality “what is a good process model?”  Process of process modeling (PPM) “how to make a good process model?”
  4. 4. 4/23 www.janclaes.info FACULTY OF ECONOMICS AND BUSINESS ADMINISTRATION How do people construct such process models?
  5. 5. 5/23 www.janclaes.info Process of Process Modeling (PPM) Descriptions of real or intended process Modeler Modeling Process model Modeling software Modeling language Real process Model reader Process engine
  6. 6. 6/23 www.janclaes.info PPMChart visualization  CREATE_ACTIVITY  CREATE_START_EVENT  CREATE_END_EVENT  CREATE_AND  CREATE_XOR  CREATE_EDGE  MOVE_ACTIVITY  MOVE_START_EVENT  MOVE_END_EVENT  MOVE_AND  MOVE_XOR  DELETE_ACTIVITY DELETE_START_EVENT  DELETE-END_EVENT  DELETE_AND  DELETE_XOR  DELETE_EDGE  NAME_ACTIVITY  RENAME_ACTIVITY  NAME_EDGE  RENAME_EDGE  Start event  Edge  Activity  Gateway  Edge  Activity  Edge  Edge  Activity  Edge  Gateway  Edge 7 29 8 9 32 14 30 31 10 33 56 34 time modelelements
  7. 7. 7/23 www.janclaes.info Flow-oriented modeling
  8. 8. 8/23 www.janclaes.info Aspect-oriented modeling
  9. 9. 9/23 www.janclaes.info Undirected modeling
  10. 10. 10/23 www.janclaes.info Observations (objective) Obs. 1. Majority used serialized approach Obs. 2. 28% flow-oriented modeling Obs. 3. 9% aspect-oriented modeling Obs. 4. 10% undirected modeling Obs. 5. Undirected sessions lasted longer
  11. 11. 11/23 www.janclaes.info FACULTY OF ECONOMICS AND BUSINESS ADMINISTRATION What about the quality of the corresponding models?
  12. 12. 12/23 www.janclaes.info Impressions (subjective) Impr. 1. Modelers need serialization Impr. 2. Structured serialization helps Impr. 3. Structuring does not help everyone Impr. 4. Structuring the modeling process helps structuring the model
  13. 13. 13/23 www.janclaes.info Effectiveness and efficiency Flow-oriented Aspect-oriented Undirected  Good structure  Fast modeling  Good structure  Fast modeling  Poor structure  Slow modeling
  14. 14. 14/23 www.janclaes.info FACULTY OF ECONOMICS AND BUSINESS ADMINISTRATION Is there a rational for these observations and impressions?
  15. 15. 15/23 www.janclaes.info Kinds of human memory input Sensory memory Working memory Long term memory performance OBSERVATION SELECTION ORGANIZATION RETRIEVALTRANSFER
  16. 16. 16/23 www.janclaes.info Types of cognitive load Time Instantaneousload overall load intrinsic load extraneous load germane load free capacity assumed capacity instantaneous load overload
  17. 17. 17/23 www.janclaes.info PRESAGEPROCESSPRODUCT Cognitive Load Theory (CLT) case complexity prior knowledge input material representation fit working memory capacity extraneous cognitive load germane cognitive load schema construction process model quality A B The more A, the more B A B The more A, the less B A B The more A, the more B on the long term overall construction time cognitive overload intrinsic cognitive load ++ + + +++ + + – ––– – –
  18. 18. 18/23 www.janclaes.info Cognitive Fit Theory (CFT) Hidden Figures Test (HFT) Need for structure Learning styleField dependency Sensory Visual Inductive Active Sequential Intuitive Auditory Deductive Reflective Global I ♥︎ chaos I #$@&! chaos
  19. 19. 19/23 www.janclaes.info FACULTY OF ECONOMICS AND BUSINESS ADMINISTRATION What can we do with this knowledge?
  20. 20. 20/23 www.janclaes.info Impressions Cognitive theoryObservations Theory building Structured Process Modeling Theory 20/32 www.janclaes.info
  21. 21. 21/23 www.janclaes.info Structured Process Modeling Theory (SPMT) A B A determines BA B The more A, the more B+ A B The more A, the less B– A B A translates into B learning style degree of serialization adopted serialization style need for structure field- dependency – + intrinsic cognitive load for modeling phases intrinsic cognitive load for aggregation phases cognitive overload intrinsic cognitive load for strategy building phases + + + serialization style fit structuredness of serialization – –– – 1 2 3
  22. 22. 22/23 www.janclaes.info Future work SPMT = theory for explaining reality  Descriptive, not for predicting Future work = theory for design and action  Prescriptive, differentiation is key Future work = design science  Tool support • Measure cognitive style • Suggest appropriate modeling technique • Adapt tool to support that particular technique
  23. 23. 23/23 www.janclaes.info OVERVIEW COGNITION EXPERIMENT Thanks for you attention! > Do you have feedback on my research plans? < > how do people construct models < > cognitive support < > SPMT < Jan Claes jan.claes@ugent.be http://www.janclaes.info Twitter: @janclaesbelgium

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