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The P-Modeling Technique: Results Of The CMMI-P-SPEM Experiment

The P-Modeling Technique: Results Of The CMMI-P-SPEM Experiment. the experiment CMMI-P-SPEM was conducted on October 26, 2005, collocated with the First Software Engineering Conference in Russia . Vladimir L Pavlov Nikita Boyko. vlpavlov@ieee.org mboyko@acm.org. Agenda. Historical overview

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The P-Modeling Technique: Results Of The CMMI-P-SPEM Experiment

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  1. The P-Modeling Technique: Results Of The CMMI-P-SPEM Experiment the experiment CMMI-P-SPEM was conducted on October 26, 2005, collocated with the First Software Engineering Conference in Russia Vladimir L Pavlov Nikita Boyko vlpavlov@ieee.org mboyko@acm.org

  2. Agenda • Historical overview • October 15 and October 26 • Results of the Experiment

  3. The Babel Experiment • A team of students gets an assignment to create a high-level design for a software system • They are required to use UML and are not allowed to use any other language (English, German, Russian, Ukrainian, etc), either spoken or written • Students are given 4-6 hours to complete the task • This assignment was always presented as an experiment – the students are to discover whether or not UML is “a real language” that can successfully serve as a communication tool within a team

  4. The Babel Experiment:A Training On OOA/OOD • Developed in 2001by Vladimir L Pavlov • Since 2001 it has been successfully delivered more than ten times to the software developing companies and universities • The results of the “experiment” were always positive – students were always able to “prove” that the UML is a “real” language

  5. The Babel ExperimentWas Discussed At • The First Open Conference “IT-Education in Russia”, Suzdal, May 2003 • http://www.it-education.ru • 36th ACM “Technical Symposium on Computer Science Education” (SIGCSE 2005), St. Louis, Missouri, USA, February 2005 • http://www.ithaca.edu/sigcse2005/ • 18th IEEE Conference on Software Engineering Education and Training (CSEE&T 2005), Ottawa, Canada, April 2005 • http://www.site.uottawa.ca/cseet2005/ • These articles and presentations are available for download fromhttp://www.vlpavlov.com

  6. Once in 2004… • Two teams were working independently on the same task • One team was limited to using only the UML language and pantomime in their communication • The other was allowed to use speech in addition to UML • The first team (which was not allowed to use speech) coped with a task more successfully than the other team • Their diagrams were more detailed, more elaborate and elegant

  7. Not Only Training? • So, we decided to find out whether the speechless modeling sessions can be used in real software development projects • Can they be used not only for training purposes, but also to produce real design? • Is a speechless approach more effective than “traditional” approach? • The CMMI-P-SPEM experiment was designed to answer these questions

  8. Agenda • Historical overview • October 15 and October 26 • Results of the Experiment

  9. The Rehearsal And The Experiment • The rehearsal was organized to validate and correct (if needed) the experiment methodology • It was organized 10 days before the experiment • some of the rehearsal participants also attended the experiment on October 26 • After the rehearsal, no changes were made to the methodology • The name of the experiment was corrected • from CMMI-P-SPEM to P-MODELING

  10. Was organized in Dnepropetrovsk, Ukraine Co-sponsored by StarSoft Labs http://www.starsoftlabs.com 2 teams, 10 participants October 15, 2005Rehearsal

  11. Was organized in Moscow, Russia Collocated with the First Software Engineering Conference in Russia http://www.secr.ru 2 teams, 10 participants October 26, 2005Experiment

  12. P-modelingMethodology • Is based on using: • Silent Modeling Sessions • a team is not allowed to use speech during the modeling session • Reverse Semantic Traceability • one team creates a design (“translates” from human language to UML), • another team validates it (translates it back from UML to human language, initial and restored texts are compared)

  13. Experiment Methodology • 2 teams work independently on different tasks • Each team is given a text descriptions of a domain, and they have to create a UML model for it • They are not allowed to speak • They have 3 hours to complete the assignment • Then the teams exchange the results of their work (sets of UML diagrams) • Based on the received UML models, the teams have to restore the original text descriptions • They are allowed to speak at this phase • They have 1 hour to complete this task • Then the teams have a joint workshop where they compare results and discuss possible ways to use the P-modeling techniques in their real-life work

  14. Consolidated Data From Both Rehearsal And Experiment • 15 participants • 12 practitioners • 2 students • 1 university instructor • Experience in Object-Oriented Programming (OOP) from 1 to 10 years • Average 4.5 years • Experience in Object-Oriented Modeling from 1 to 5 years • Average 2.5 years

  15. Consolidated Data From Both The Rehearsal And Experiment • Participants formed 4 teams • 4 text descriptions of different domains were used • Russian language was used • Size from 150 to 300 words (from half of page to the whole page) • These text descriptions were “translated” to UML and then “restored” back to texts

  16. Diagrams • 3-11 diagrams were created for each model • Almost all types of UML diagrams were used • none of the 4 teams created collaboration and state-chart diagrams

  17. Agenda • Historical overview • October 15 and October 26 • Results of the Experiment

  18. Results • In all 4 cases restored texts were “very close” to the original texts • Almost no data was lost or misinterpreted • Some new (implementation) data were added • Most experiment participants said, that the “silent” approach allowed them to create their models faster, than it would take using “traditional” approaches • All experiment participants said that Reverse Semantic Traceability is the most powerful design validation technique • 90% of the experiment participants are going to use “Silent” Modeling Sessions in their real-life software development projects • All experiment participants are going to use Reverse Semantic Traceability in their real-life software development projects

  19. Feedback From Participants • The P-Modeling technique can be used in industrial software development for: • Conceptual design • Increasing effectiveness of current software development processes • Design validation • Detailed design • Quick diving into new domains • Building effective teams

  20. …The Day Before Yesterday • The experiment was conducted on October 26 - the day before yesterday • Today is October 28, 2005 • So, we did not have much time to analyze all collected data • A detailed report will be published soon

  21. Summary • Today the P-modeling technique consists of: • Silent Modeling Sessions • Reverse Semantic Traceability • The P-modeling technique was successfully used before for educational purposes • The experiment has demonstrated that P-modeling can also be used in real-life software development projects, and can be more effective than “traditional” modeling approaches

  22. Thank You: • RUSSEE • http://www.russee.com • StarSoft Labs • http://www.starsoftlabs.com

  23. Thank You: • Ilya Antipov http://www.russee.com • Alexander Babich http://ppc-kpi.ukrbiz.net • Dmitry Bednyak http://www.dr.dp.ua • Dmitry Dakhnovsky http://www.russee.com • Dmitry Malenko http://www.itgny.com • Pavel Tsitovich http://www.susu.ac.ru • Igor Kaftannikov http://www.susu.ac.ru • Lubov Orlova http://www.russee.com • Konstantin Philonenko http://www.starsoftlabs.com • Ivan Poyda http://www.poyda.com

  24. This presentation was delivered in Moscow on October 28, 2005, at the First Software Engineering Conference in Russia You can download it form http://www.secr.ru or http://www.vlpavlov.com

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