TSP/PSP and Agile/Scrum: Similarities & Differences StudyPorto, 23 of June of 2012                        Innovation in So...
About Strongstep•    Strongstep is a company specialized in     software engineering that contributes to the     improveme...
About César Duarte • Consultant in Software Engineering at Strongstep • Software Engineer, holds a Masters Degree in Infor...
• Speedtalk (Exactly 10mins!!)    • So it’s more like    TSP/PSP and Agile/Scrum:    (A brief description of) Similarities...
Expected Outcomes • Understand the purpose of TSP/PSP • Overcome common misunderstandings regarding TSP/PSP • Understandin...
TSP, PSP and CMM(i)                                                                              image from www.sei.cmu.ed...
Team Software Process + Agile??• Why was there a need to blend them?The goal was to get the best of the TSP and Agile meth...
TSP vs SCRUM: Introduction What do they have in common?                                  SCRUM                            ...
TSP vs SCRUM: Similarities                           SCRUM                                                                ...
TSP vs SCRUM: Similarities in team meetings                         Daily Scrum                                           ...
TSP vs SCRUM: Mapping of roles                Product Owner                                                               ...
TSP vs SCRUM: Differences                         SCRUM                                                         TSPSprint ...
TSP vs SCRUM: Differences (2)                         SCRUM                                                         TSPImp...
TSP Common Misunderstandings TSP = Classic Sequential Waterfall Lifecycle? There seems to be the implicit assumption that ...
TSP can be agile too!                                            Iterative Development                         TSP        ...
There’s much more on this topic but.. We’re almost out of time. Just to summarize some key subjects: • Shared Concepts bet...
Presentation Takeaways • Understand the purpose of TSP/PSP            – TSP improves team performance and focuses on team ...
References •   PSP: A Self-Improvement Process for Software Engineers, Watts S. Humphrey, 2005 •   TSP: Coaching Developme...
Contacts      Email: cesar.duarte@strongstep.pt      Mobile: + 351 91 898 70 25      Strongstep - Innovation in software q...
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[Agile Portugal 2012] TSP/PSP and Agile-SCRUM: Similarities & Differences Study (César Duarte)

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The Personal Software Process (PSP) and the Team Software Process (TSP) are process improvement frameworks tailored to produce virtually defect free software and deliver it on time.
The main focus of this speed talk is to state some of the similarities and differences between TSP/PSP and Scrum methodologies as well as some Agile practices. Why was there a need to blend these methods (TSP and Agile)? What were we trying to accomplish, or what was the goal here? The goal was to get the best of the TSP and Agile methods/models so that we could develop high quality products in a predictable and repeatable way to successfully tackle projects that are highly unpredictable, rapidly changing, with unknown final client, among others.
There are a few similarities between both management methods (TSP and SCRUM), as well as some differences. There also seems to be a lot of misunderstandings regarding TSP and this presentation will try to debunk some of them. TSP can be Agile too! – Incremental, iterative and adaptive.

Agile Portugal 2012
23 June 2012

Published in: Business, Technology, Education

[Agile Portugal 2012] TSP/PSP and Agile-SCRUM: Similarities & Differences Study (César Duarte)

  1. 1. TSP/PSP and Agile/Scrum: Similarities & Differences StudyPorto, 23 of June of 2012 Innovation in Software Quality SEI, TSP, PSP, Team Software Process and Personal Software Process are service marks of Carnegie Mellon University
  2. 2. About Strongstep• Strongstep is a company specialized in software engineering that contributes to the improvement of software quality in Portugal and in the world Universities• We want to induce a positive change in organizations. This will represent a step with a strong, sustainable and innovative way - a strong step Strongstep• Projects portfolio: Reference Enterprises Institutions • Process improvement with CMMI DEV L2, L3, L5, CMMI SRV, TSP/PSP, combining agile/CMMI, Six Sigma, NP4457, Kanban, Scrum, ITIL, PMBOK, ISTQB, RUPStrongstep 2012 | TSP/PSP and Agile/Scrum: Similarities & Differences Study 1
  3. 3. About César Duarte • Consultant in Software Engineering at Strongstep • Software Engineer, holds a Masters Degree in Informatics and Computing Engineering. He graduated from the Faculty of Engineering, University of Porto (FEUP) in Portugal • Worked as a Research Assistant at ESB - Universidade Católica Portuguesa – Porto • Specialties and research interests are related to Software Engineering, Software Process Improvement, Personal Software Process (PSP) and Team Software Process (TSP).Strongstep 2012 | TSP/PSP and Agile/Scrum: Similarities & Differences Study 2
  4. 4. • Speedtalk (Exactly 10mins!!) • So it’s more like TSP/PSP and Agile/Scrum: (A brief description of) Similarities & Differences Porto, 23 of June of 2012Strongstep 2012 | TSP/PSP and Agile/Scrum: Similarities & Differences Study 3
  5. 5. Expected Outcomes • Understand the purpose of TSP/PSP • Overcome common misunderstandings regarding TSP/PSP • Understanding of the differences and the similarities between Team Software Process/Personal Software Process and Agile/SCRUMStrongstep 2012 | TSP/PSP and Agile/Scrum: Similarities & Differences Study 4
  6. 6. TSP, PSP and CMM(i) image from www.sei.cmu.edu/tsp/Strongstep 2012 | TSP/PSP and Agile/Scrum: Similarities & Differences Study 5
  7. 7. Team Software Process + Agile??• Why was there a need to blend them?The goal was to get the best of the TSP and Agile methods so that we could develop highquality products in a predictable and repeatable way to successfully tackle projects thatare highly unpredictable, rapidly changing, with unknown final client and so on.Strongstep 2012 | TSP/PSP and Agile/Scrum: Similarities & Differences Study 6
  8. 8. TSP vs SCRUM: Introduction What do they have in common? SCRUM TSP Negotiation on prioritized features versus team estimates and dates Small multi-disciplinary, self-managing and self-directed teams that are pro-active. The teams are protected and trusted by management Tasks granularity Add new tasks as needed and delete tasks no longer needed Problems are identified and assigned – not solved – in brief team meetings. Planning, execution and improvement via retrospectivesStrongstep 2012 | TSP/PSP and Agile/Scrum: Similarities & Differences Study 7
  9. 9. TSP vs SCRUM: Similarities SCRUM TSPSprint Planning meeting Launch/RelaunchSprints have or are build on: (Re)launches have:• A goal • One or more team goals• A visible, usable, deliverable • Work products to develop for phaseList of identified tasks (Sprint Backlog) and project Task list, with assignments, for short term (phase), andrequirements (Product Backlog) long term with different granularity (project)High technical risks identified and planned for early Risk identification with mitigation & contingencysprints planning in [re]launchesLook at previous sprints to help with estimation on Data-driven planning and estimation in [re]launchescurrent sprintDaily Scrum’s Weekly team meetingsScrum Master Meeting facilitator, timekeeper, and recorder; Planning Manager; Team Leader; Process Manager; TSP CoachProgress monitoring via backlog Planned, actual, and predicted Earned Value (EV)Remove impediments, discuss risks & issues Risk and issue monitoring, mitigation, and contingenciesVolunteerism Dynamic workload balancingSprint Review Meeting Phase Post-Mortem Strongstep 2012 | TSP/PSP and Agile/Scrum: Similarities & Differences Study 8
  10. 10. TSP vs SCRUM: Similarities in team meetings Daily Scrum Weekly TSP Team MeetingLed by Scrum Master Team LeaderParticipants The team (“Pigs”) Team and TSP CoachObservers Stakeholders and Management (“Chickens”) None (Unless team agrees otherwise)Agenda of Meeting Three Questions: WEEK Script Includes:Each team member: What have you done since yesterday? Step 7 (Project Status): Review progress(relative to the and status (tasks completed)previous meeting) What are you planning to do today? Step 8 (Next Week Plans): Review tasks planned and any special dependencies Any impediments/stumblings blocks? Steps 4,5,6 (Role, Goal and Risk Report): Review role statuses, status against team goals, risks.Contributions by Inputs by Product Owners New developments, issues, actions,“Team Leader” management inputs Strongstep 2012 | TSP/PSP and Agile/Scrum: Similarities & Differences Study 9
  11. 11. TSP vs SCRUM: Mapping of roles Product Owner Customer Management SCRUM TSP Team Team Leader Roles Roles (Standard) SCRUM Master Support Mgr Process Mgr Customer Interface Mgr Architect Design Mgr Implementation Mgr SCRUM Team Member Team Member Test Mgr Planning Mgr Quality Mgr TSP CoachStrongstep 2012 | TSP/PSP and Agile/Scrum: Similarities & Differences Study 10
  12. 12. TSP vs SCRUM: Differences SCRUM TSPSprint duration 1-4 weeks, project duration Phase durations 1-3 months, project duration ???~couple monthsExcludes formal planning Teams must make some kind of plan to be able to make a real commitmentExcludes formal roles Roles are defined in the launch and provide focus to key areas“Time-boxing”: sprint end dates are fixed – Phases and project commitments are made andfunctionality can change, date cannot generally kept; changes which jeopardize team commitments are escalatedBusiness decision at end of sprint on whether Not address by TSPproject should continueMore differences:• TSP Includes a robust measurement and quality management framework. TSP also includes operational guidance (procedures and scripts)Strongstep 2012 | TSP/PSP and Agile/Scrum: Similarities & Differences Study 11
  13. 13. TSP vs SCRUM: Differences (2) SCRUM TSPImplicit management role as “chickens” Explicit role for management in launches, status reviews, etc.Focus for improving the project’s work processes Continuous attention to improvement of individualis at the team level skills and methods, as well as team working processesPrimary explicit improvement mechanism is the Weekly team meetings and PIPs for ongoingSprint Retrospective improvement; deeper analyses in Post-Mortems and CheckpointsEngineering processes are examined when Both engineering and management processes aresurfaced in daily scrums as issues addressed by PSP and TSP, and regularly examinedTeam as a whole owns the sprint plan, and Team members own and commit to their personalcommits to meet it plans, as well as committing to meet the team’s TSP plan There are more differencesStrongstep 2012 | TSP/PSP and Agile/Scrum: Similarities & Differences Study 12
  14. 14. TSP Common Misunderstandings TSP = Classic Sequential Waterfall Lifecycle? There seems to be the implicit assumption that PSP/TSP works only with a Big Design Up Front (BDUF) • PSP and TSP do not require a “complete up-front design” as they are compatible with cyclic development • The TSP Team chooses (during Launch) their development strategy and lifecycle model, as well as define their development process • Agile, PSP and TSP are people-oriented in philosophy and results • Both Agile and TSP use appropriate planning (and replanning) by the team to support improved productivity • TSP can be incremental, iterative and adaptive, TSP can be agile too!Strongstep 2012 | TSP/PSP and Agile/Scrum: Similarities & Differences Study 13
  15. 15. TSP can be agile too! Iterative Development TSP SCRUM Business Launch and Estimates, plans, technical process, commitment goals Re-launch Sprint PlanningLessons, new goals, new Developmentrequirements, Cyle new risks, . Cycle Work products, status, Retrospective metrics, results Project Release Planning RetrospectiveStrongstep 2012 | TSP/PSP and Agile/Scrum: Similarities & Differences Study 14
  16. 16. There’s much more on this topic but.. We’re almost out of time. Just to summarize some key subjects: • Shared Concepts between PSP/TSP and Agile. Examples: – Teamwork empowered teams who define and enforce their own goals and rules – The developers who will do the work must estimate and schedule it • Agile Manifesto vs PSP/TSP – Actual Agile Manifesto statements vs PSP/TSP concepts and practices – There are quite a few similarities here too! • Advantages of PSP/TSP. Examples: – better estimation and predictability (estimation accuracy) – leads to an almost immediate leap to high quality! • Advantages of Agile. Example: – focus on keeping it small and simple (YAGNI – you ain’t gonna need it)Strongstep 2012 | TSP/PSP and Agile/Scrum: Similarities & Differences Study 15
  17. 17. Presentation Takeaways • Understand the purpose of TSP/PSP – TSP improves team performance and focuses on team building and management – PSP improves individual skills and discipline. Focus on individuals • Overcome common misunderstandings regarding TSP/PSP – TSP/PSP is not waterfall confined. TSP can be agile too! • Understanding (some) of the differences and the similarities between TSP/PSP and Agile/SCRUMStrongstep 2012 | TSP/PSP and Agile/Scrum: Similarities & Differences Study 16
  18. 18. References • PSP: A Self-Improvement Process for Software Engineers, Watts S. Humphrey, 2005 • TSP: Coaching Development Teams, Watts Humphrey, 2006 • P. Gomes – Integração de modelos de desenvolvimento de software mais e menos ágeis, MSc Thesis, Strongstep and FEUP, 2009. (Supervised by João Pascoal Faria and Ademar Aguiar) • James Over – Team Software Process – SEPG Europe 2008, Munique • Noopur Davis, Darryl L. Davis – Using SCRUM in a TSP Measurement Framework – SEPG Europe 2008 • Noopur Davis – Lessons Learned Using Agile Practices with TSP – TSP Symposium 2010 • Karen J. Smiley, Brian P. Robinson, Gregory Gilooly – Integrating Agile Pratices and TSP: Team eXtreme Process (TXP) – SEPG 2005 • Alan Padula – TSP*-Agile Blend: The Gun Smoke Clears – TSP Symposium 2009 • Daniel M. Roy – Agile, TSP, CMMI, pick one, pick two, pick all three! – Cape Town SPIN 2008 • Karen J. Smiley – Comparing Agile and TSP – TSP/PSP Users Group Conference 2003 • Jim Sartain – Inspiring, enabling and driving the Evolution of Quality at Adobe leveraging the TSP – TSP Symposium 2009Strongstep 2012 | TSP/PSP and Agile/Scrum: Similarities & Differences Study 17
  19. 19. Contacts Email: cesar.duarte@strongstep.pt Mobile: + 351 91 898 70 25 Strongstep - Innovation in software quality Email: geral@strongstep.pt Web: www.strongstep.pt Telephone: + 351 22 030 15 85 Porto: UPTEC - Parque de Ciência e Tecnologia da U. Porto Rua Alfredo Allen, 455/461 4200-135 Porto, Portugal Lisbon: Av. Infante Santo, Nº 63-3ºEsq. 1350-177 Lisbon, PortugalStrongstep 2012 | TSP/PSP and Agile/Scrum: Similarities & Differences Study 18

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