report on: workshop on process modeling technologies
DESCRIPTION
Report on: Workshop on Process Modeling Technologies. Lee Osterweil University of Massachusetts Sue Koolmanojwong USC-CSSE. Problem: How to Sort Through a Profusion of Approaches to Software Process?. Monday’s Workshop. Presentation of four approaches - PowerPoint PPT PresentationTRANSCRIPT
![Page 1: Report on: Workshop on Process Modeling Technologies](https://reader036.vdocuments.site/reader036/viewer/2022062314/56813066550346895d9640f1/html5/thumbnails/1.jpg)
Report on:Workshop on Process Modeling Technologies
Lee Osterweil
University of Massachusetts
Sue Koolmanojwong
USC-CSSE
![Page 2: Report on: Workshop on Process Modeling Technologies](https://reader036.vdocuments.site/reader036/viewer/2022062314/56813066550346895d9640f1/html5/thumbnails/2.jpg)
Problem: How to Sort Through a Profusion of Approaches to Software
Process?
![Page 3: Report on: Workshop on Process Modeling Technologies](https://reader036.vdocuments.site/reader036/viewer/2022062314/56813066550346895d9640f1/html5/thumbnails/3.jpg)
Monday’s Workshop
• Presentation of four approaches
• Discussion of how to sort through the alternatives
![Page 4: Report on: Workshop on Process Modeling Technologies](https://reader036.vdocuments.site/reader036/viewer/2022062314/56813066550346895d9640f1/html5/thumbnails/4.jpg)
Phase 1: Presentation of Four Different Technologies
• Eclipse Process Framework Composer (EPFC) / Rational Method Composer
• System Dynamics• Object Petri-Nets• Little-JIL
![Page 5: Report on: Workshop on Process Modeling Technologies](https://reader036.vdocuments.site/reader036/viewer/2022062314/56813066550346895d9640f1/html5/thumbnails/5.jpg)
Modeling Software Engineering Processes using Eclipse Process Framework Composer (EPFC) /
Rational Method Composer (RMC)
Molly Phongpaibul, Sue Koolmanojwong
March 17, 2008
![Page 6: Report on: Workshop on Process Modeling Technologies](https://reader036.vdocuments.site/reader036/viewer/2022062314/56813066550346895d9640f1/html5/thumbnails/6.jpg)
Professional
Desires: - Simplicity - Templates - Examples - Guidance
Who Uses EPFC/RMC?
Process Author
Produces: - Base methods - Plug ins
Management
Requires: - Realistic consistency - Viable governance - Improved ROI
Service Provider
Provides: - Training - Consulting - Mentoring - Adoption services
Wants to: - Build tools - Sell tools - Sell services
Tool Provider
Needs: - Teachable material - Teach process development - Use in student projects - Bring research to mainstream
Academia
Process Coach
Performs: - Tailoring - Publishing - Support - Training
Source: www.eclipse.org/epf
![Page 7: Report on: Workshop on Process Modeling Technologies](https://reader036.vdocuments.site/reader036/viewer/2022062314/56813066550346895d9640f1/html5/thumbnails/7.jpg)
Process Representation
![Page 8: Report on: Workshop on Process Modeling Technologies](https://reader036.vdocuments.site/reader036/viewer/2022062314/56813066550346895d9640f1/html5/thumbnails/8.jpg)
Process Elements Representation
![Page 9: Report on: Workshop on Process Modeling Technologies](https://reader036.vdocuments.site/reader036/viewer/2022062314/56813066550346895d9640f1/html5/thumbnails/9.jpg)
Form-based Editor
![Page 10: Report on: Workshop on Process Modeling Technologies](https://reader036.vdocuments.site/reader036/viewer/2022062314/56813066550346895d9640f1/html5/thumbnails/10.jpg)
One Key advantage: Scalability
• Method content repository approximately contains– 100s Work products– 30-50 roles– 1,000+ tasks– Around 100 delivery processes
CommercialCommercialExtensionExtension
CompanyCompany
Proprietary ExtensionProprietary Extension
RUPRUP
OpenOpen
SourceSource
PracticesPractices
IBM Global ServicesIBM Global Services
![Page 11: Report on: Workshop on Process Modeling Technologies](https://reader036.vdocuments.site/reader036/viewer/2022062314/56813066550346895d9640f1/html5/thumbnails/11.jpg)
Other Advantages
• Reusability
• Compatibility
• Universality
![Page 12: Report on: Workshop on Process Modeling Technologies](https://reader036.vdocuments.site/reader036/viewer/2022062314/56813066550346895d9640f1/html5/thumbnails/12.jpg)
Modeling System and Software Engineering Processes with System
Dynamics
Ray MadachyUSC Center for Systems and Software Engineering
Annual Research ReviewMarch 17, 2008
![Page 13: Report on: Workshop on Process Modeling Technologies](https://reader036.vdocuments.site/reader036/viewer/2022062314/56813066550346895d9640f1/html5/thumbnails/13.jpg)
System Dynamics Notation• System represented by x’(t)= f(x,p).
• x: vector of levels (state variables), p: set of parameters
• Legend:
• Example system:
defects
defect generation rate
undetected defects
defect escape rate
detected defects
defect detection ratedefect detection
efficiency
Noname 1
level
rate
auxiliary variable
source/sink
information link
![Page 14: Report on: Workshop on Process Modeling Technologies](https://reader036.vdocuments.site/reader036/viewer/2022062314/56813066550346895d9640f1/html5/thumbnails/14.jpg)
Dynamic ODC COQUALMO Portion
• Portion for Requirements Completeness defects only:
timing defects
total timing defects
generation elaboration function
Graph 1
generation buildup parameter
Graph 2
defect gap
timing defects
total timing defectstiming defects found
detection elaboration function
schedule at completion
Automated Analysis Peer Reviews Execution Testing and Tools
~
SLOC
effort at completion
detection start time
schedule at completion
Graph 3
25.1schedule at completion
~~
83.2composite É efficiency
interface defects
total interface defects
detection elaboration function
detection buildup parameter
interface defects foundcorrectness defects
~
detection start timegeneration elaboration function
total correctness defects
detection start time
~~
SLOC
Automated Analysis Peer ReviewsExecution Testing and Tools
correctness defects found
~
~
schedule at completion
detection start time
~~
SLOC Automated Analysis Peer Reviews Execution Testing and Tools
340effort at completion
schedule at completion
~
requirements detection start time
Analyst Capability
~
requirements defect multiplier
~
requirements defect multiplier
completeness defects
completeness defect generation rate
total completeness defects
completenessdefect fraction
completness defect detection rate
completeness defects found
~
execution testing and toolscompleteness defect detection effic
composite completness defect detection efficiency
~
peer reviews completeness defect detection efficiency
~
automated analysis completeness defect detection efficiency
SLOC Automated Analysis Peer Reviews Execution Testing and Tools
consistency defects
requirements defect generationelaboration function
requirements defect detectionelaboration function
~
requirements defect multiplier
total consistecny defects
consistency defects found
~
~
~
SLOC Automated Analysis Peer Reviews Execution Testing and Tools
ambiguity testability defects
~
requirements defect multiplier
requirements defect fraction
~
~
~
SLOC Automated Analysis Peer Reviews Execution Testing and Tools
~
requirements defect multiplier
code timing defects
total code timing defects
code timing defects found
~
~
~
SLOC Automated Analysis Peer Reviews Execution Testing and Tools
code start time
~
requirements defect multiplier
code detection start time
code defects fraction
code defects fraction
code detection start time
code start time
schedule at completion
![Page 15: Report on: Workshop on Process Modeling Technologies](https://reader036.vdocuments.site/reader036/viewer/2022062314/56813066550346895d9640f1/html5/thumbnails/15.jpg)
Dynamic ODC COQUALMO Sample Outputs
• Example of applying increased V&V for Execution Testing and Tools at 18 months:
![Page 16: Report on: Workshop on Process Modeling Technologies](https://reader036.vdocuments.site/reader036/viewer/2022062314/56813066550346895d9640f1/html5/thumbnails/16.jpg)
Some Advantages
• Rests on established, respected work– Jay Forrester (1950s)
• Is a Macro approach
• Can address the highest level issues
• Yields nice analytic answers
![Page 17: Report on: Workshop on Process Modeling Technologies](https://reader036.vdocuments.site/reader036/viewer/2022062314/56813066550346895d9640f1/html5/thumbnails/17.jpg)
System Diagram
![Page 18: Report on: Workshop on Process Modeling Technologies](https://reader036.vdocuments.site/reader036/viewer/2022062314/56813066550346895d9640f1/html5/thumbnails/18.jpg)
03/17/08 18
LiGuo [email protected]
Department of Computer Science & Engineering
Southern Methodist University
Modeling Value-Based Process with Object Petri-Nets
![Page 19: Report on: Workshop on Process Modeling Technologies](https://reader036.vdocuments.site/reader036/viewer/2022062314/56813066550346895d9640f1/html5/thumbnails/19.jpg)
03/17/08 19
VBSQA-OPN System Net – VBSQA Process Framework
Mission objective s and stages
Project SCS classes & Business Cases
SCS define acceptable &desired
value s for Q -attributes(_)
Risk analysis & Architecture /technology evaluation
(_)
Identify conflicting Q-attribute s &
perform tradeoff analysis
(_)
Deliverables :System top -level design and FRD
Architecture /technology
combination (s ) CAN satisfy all Q -attribute
requirements ?
Initiate project(_)
Project cost /benefit
analysis(_) Launch project
SCS adjust acceptablevalues for Q -attributes
(_)
Terminate or redefine project
Architecture /technology
combination (s) CANNOT satisfy all
Q-attribute requirements ?
System top -level design
(_ )
LCO Pass LCO Review ( _)(Exit criteria : Provide at
least one feasible architecture)
LCO Fail
LCO phase rework or extra work
(_)
SCS: Success Critical Stakeholders
LCO: Life Cycle Objective
FRD: Feasibility Rationale D escription
Q-: Qualitysynchronous transitions
status transitions
Legend (System Net)
![Page 20: Report on: Workshop on Process Modeling Technologies](https://reader036.vdocuments.site/reader036/viewer/2022062314/56813066550346895d9640f1/html5/thumbnails/20.jpg)
03/17/08 20
Developer’s Object Net System Acquirer’s Object Net
VBSQA-OPN Object Nets – Stakeholders’ Process Instances
object-autonomous transitionssynchronous transitions
status transitions
Legend (Object Net )
Mission objective s and stages
Project SCS classes & Business Cases
Requirement elicitation meeting
(_)
External prototypeevaluation
(_)
Identify conflicting Q-attribute s &
perform tradeoff analysis
(_)
Deliverables :System top -level design and FRD
Architecture /technology
combination (s ) CAN satisfy all Q -attribute
requirements ?
Acquire system upgrade
requirements(_)
Estimate system upgrade schedule /cost & develop DMR results chain
(_)
Schedule /cost accepted
Stakeholder renegotiation
(_)
Schedule /cost not accepted
Architecture /technology
combination (s) CANNOT satisfy all
Q-attribute requirements ?
System top -level design
(_)
LCO Pass LCO Review ( _)(Exit criteria : Provide at
least one feasible architecture)
LCO Fail
LCO phase rework or extra work
(_)
Developers
Peer review system top-level design & other documents
Mission objective s and stages
Project SCS classes & Business Cases
Requirement elicitation meeting
(_)
External prototypeevaluation
(_)
Identify conflicting Q-attribute s &
perform tradeoff analysis
(_)Deliverables :
System top-level design and FRD
Architecture /technology
combination (s) CAN satisfy all Q-attribute
requirements ?
Issue project bidding
(_)
Verify system upgrade
schedule/cost & DMR results
chain(_)
Launch project
Stakeholder renegotiation
(_)
Terminate or redefine project
Architecture /technology
combination (s) CANNOT satisfy all
Q-attribute requirements ?
LCO Pass LCO Review (_)(Exit criteria: Provide at
least one feasible architecture)
LCO Fail
System Acquirer
![Page 21: Report on: Workshop on Process Modeling Technologies](https://reader036.vdocuments.site/reader036/viewer/2022062314/56813066550346895d9640f1/html5/thumbnails/21.jpg)
03/17/08 21
VBSQA Process Generator – Based on VBSQA-OPN Model
VBSQA Process Creator
VBSQA Process Checker
VBSQA Process Simulator
A Mapping between ERP Software Development Activities
and VBSQA Process Framework
Simulation Results
![Page 22: Report on: Workshop on Process Modeling Technologies](https://reader036.vdocuments.site/reader036/viewer/2022062314/56813066550346895d9640f1/html5/thumbnails/22.jpg)
03/17/08 22
VBSQA Process Simulator– ROI of Synchronous Stakeholder Interaction Activities
DIMS Top-Priority Q-attributes: Performance, Evolvability
![Page 23: Report on: Workshop on Process Modeling Technologies](https://reader036.vdocuments.site/reader036/viewer/2022062314/56813066550346895d9640f1/html5/thumbnails/23.jpg)
Some Advantages
• Petri Nets have interesting well-defined properties
• Coordination of different views– Separation of concerns
• Graphical notation
• Particularly useful for concurrency
![Page 24: Report on: Workshop on Process Modeling Technologies](https://reader036.vdocuments.site/reader036/viewer/2022062314/56813066550346895d9640f1/html5/thumbnails/24.jpg)
The Little-JIL Process Definition Language
Leon J. Osterweil ([email protected])
Lab. For Advanced SE Research
University of Massachusetts
USC Center for Software and Systems Engineering
17 March 2008
![Page 25: Report on: Workshop on Process Modeling Technologies](https://reader036.vdocuments.site/reader036/viewer/2022062314/56813066550346895d9640f1/html5/thumbnails/25.jpg)
The “Step” is the central Little-JIL abstraction
TheStepName
Interface Badge(parameters, resources, agent)
Prerequisite Badge Postrequisite Badge
Substep sequencingHandlers
X
Artifactflows
Exception type
continuation
![Page 26: Report on: Workshop on Process Modeling Technologies](https://reader036.vdocuments.site/reader036/viewer/2022062314/56813066550346895d9640f1/html5/thumbnails/26.jpg)
Trivial Example Elaboration of Design Step
![Page 27: Report on: Workshop on Process Modeling Technologies](https://reader036.vdocuments.site/reader036/viewer/2022062314/56813066550346895d9640f1/html5/thumbnails/27.jpg)
![Page 28: Report on: Workshop on Process Modeling Technologies](https://reader036.vdocuments.site/reader036/viewer/2022062314/56813066550346895d9640f1/html5/thumbnails/28.jpg)
Little-JIL Environment Architecture
ProcessDefinition
VariousEditors
ResourcesDefinition
ArtifactsDefinition
ExecutionEngine
(Juliette)
Agents
Agendas
CoordinationStructure
ResourceRepository
ArtifactRepository
AgendaManager
Analyzers
Properties Flavers
Simulator
Fault TreeAnalyzer
User InterfaceManager
ProcessProgrammer
![Page 29: Report on: Workshop on Process Modeling Technologies](https://reader036.vdocuments.site/reader036/viewer/2022062314/56813066550346895d9640f1/html5/thumbnails/29.jpg)
Some Advantages
• Broad semantics
• Precise semantics
• Analysis
• Growing toolset
![Page 30: Report on: Workshop on Process Modeling Technologies](https://reader036.vdocuments.site/reader036/viewer/2022062314/56813066550346895d9640f1/html5/thumbnails/30.jpg)
Phase 2:What to Make of All of This?
![Page 31: Report on: Workshop on Process Modeling Technologies](https://reader036.vdocuments.site/reader036/viewer/2022062314/56813066550346895d9640f1/html5/thumbnails/31.jpg)
What to Make of All This?
• Which is good for what?
• What are we missing?
• What needs are not covered?
• Can we compare and contrast?
• Can we combine best features?
![Page 32: Report on: Workshop on Process Modeling Technologies](https://reader036.vdocuments.site/reader036/viewer/2022062314/56813066550346895d9640f1/html5/thumbnails/32.jpg)
A Classification and Comparison Framework for Software
Architecture Description Languagesby Medvidovic and Taylor
as a model?
• Comparison of Software Architecture technologies
• Technologies are rows
• Features are columns
• Lots of work to fill in the entries
![Page 33: Report on: Workshop on Process Modeling Technologies](https://reader036.vdocuments.site/reader036/viewer/2022062314/56813066550346895d9640f1/html5/thumbnails/33.jpg)
The paper by Taylor and Medvidovic as a model?
• Comparison of Software Architecture technologies
• Technologies are rows
• Features are columns
• Lots of work to fill in the entries
Can we do something like that forProcess modeling technologies?
![Page 34: Report on: Workshop on Process Modeling Technologies](https://reader036.vdocuments.site/reader036/viewer/2022062314/56813066550346895d9640f1/html5/thumbnails/34.jpg)
A Possible Approach
• What should we be doing?– What goals do stakeholders have?– Columns of a matrix (??)
• What are we currently doing?– What do we say our goals are?
• What are we really doing?– What do our technologies address?– Rows of a matrix (??)
![Page 35: Report on: Workshop on Process Modeling Technologies](https://reader036.vdocuments.site/reader036/viewer/2022062314/56813066550346895d9640f1/html5/thumbnails/35.jpg)
Process Stakeholders
• Process performer • Process engineer• Manager• Customer • End user• Educator/trainer• Tool provider• Researcher• Union representative• Regulator• Standardizer (e.g. OMG) • Domain specific stakeholder• …….. MORE?
![Page 36: Report on: Workshop on Process Modeling Technologies](https://reader036.vdocuments.site/reader036/viewer/2022062314/56813066550346895d9640f1/html5/thumbnails/36.jpg)
Stakeholder Goals for Process Technology
• Ambiguity tolerance • Analysis • Automation • Compliance • Composability • Cost effectiveness / save money • Coverage • Efficiency • Evolvability • Implementability / doable • Interchangability • Learnability • Maintainability • manager’s satisfaction • Marketability • Minimum cost of the product • No job loss• Non-interference (with other standards) • Optimal time of the product / speed • Precision
• Prepare negotiation stance • Process analysis • Process management • Profit • Purpose fulfillment • Quality • Reasoning • Reinvention • Repeatability • Reusability • Risk mitigation • Satisfiability • Satisfy high value stakeholders • Scalability • Tailorability • Teachability • Understandability • Usability • Verifiability/ conformance • Work rule
MORE
![Page 37: Report on: Workshop on Process Modeling Technologies](https://reader036.vdocuments.site/reader036/viewer/2022062314/56813066550346895d9640f1/html5/thumbnails/37.jpg)
Goals Technologies seem to be addressing
• Comprehension• Coordination• Automation• Education and training• Continuous improvement• Deep understanding• Planning and control• Reinvention• Strategic management• Communication• Standardization• Analysis• Risk mitigation• Agility
These don’t match theprevious list very well
![Page 38: Report on: Workshop on Process Modeling Technologies](https://reader036.vdocuments.site/reader036/viewer/2022062314/56813066550346895d9640f1/html5/thumbnails/38.jpg)
First Attempt to Structure and Organize the Goals
• Survey some example stakeholder communities
• Top level goals
• Some decomposition into subgoals
![Page 39: Report on: Workshop on Process Modeling Technologies](https://reader036.vdocuments.site/reader036/viewer/2022062314/56813066550346895d9640f1/html5/thumbnails/39.jpg)
Goals for Researchers, Educators• Understanding, comprehension
– Understanding, comprehension– Education– Training– Dissemination– Radical reinvention
• Improvement– Of workforce
• More (,) better workers• Better management• Better resource allocation
– Of process itself• Faster, better, cheaper
– Of product• More better ilities in the product
![Page 40: Report on: Workshop on Process Modeling Technologies](https://reader036.vdocuments.site/reader036/viewer/2022062314/56813066550346895d9640f1/html5/thumbnails/40.jpg)
Possible Research roadmap
• Refine and organize list of goals• Turn it into a list of desired capabilities
– The columns of a matrix
• Identify a list of technologies– The four presented here are only a start– Some come from other disciplines
• E.g. business process, workflow, service architecture
• Study which technologies do what well• Identify gaps in coverage• Suggest syntheses
![Page 41: Report on: Workshop on Process Modeling Technologies](https://reader036.vdocuments.site/reader036/viewer/2022062314/56813066550346895d9640f1/html5/thumbnails/41.jpg)
Something for CSSE to Lead?