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Retour d'expérience dev-ops AT-strasbourg 20121018

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Retour d'expérience dev-ops AT-strasbourg 20121018

  1. 1. Blitz-DevOps:Un retour d’expérience de Développement Opérationnel sur un projet critiquePierre Parrend, Denis Volpato18.10.2012
  2. 2. LE PROJET „FACTURES D‟AFFAIRES‟18/10/2012 Blitz-DevOps 2
  3. 3. Le Projet ‘Factures d’affaires’ Executive summary18/10/2012 Blitz-DevOps 3
  4. 4. Le Projet ‘Factures d’affaires’ Blitz-Project 25 avril  6 juin 2012 Image: FreeDigitalPhotos.net18/10/2012 Blitz-DevOps 4
  5. 5. Le Projet ‘Factures d’affaires’ Comment gérer le blitz-project “Relevez le défi !”, F. « Je l‟ai dit, je le fais», D18/10/2012 Blitz-DevOps 5
  6. 6. SCRUM BY THE BOOK18/10/2012 Blitz-DevOps 6
  7. 7. SCRUM by the book Création de valeur18/10/2012 Blitz-DevOps 7
  8. 8. SCRUM by the book Le projet SCRUM Retro Retro Retro Retro Planning spective Planning spective Planning spective Planning spective Sprint Sprint Sprint Sprint 1 2 3 N18/10/2012 Blitz-DevOps 8
  9. 9. SCRUM by the book Le sprint Daily Daily Daily Daily Daily scrum scrum scrum scrum scrum Planning Démo Sprint Retro spective18/10/2012 Blitz-DevOps 9
  10. 10. SCRUM by the book L’équipe (1/3): Les artisans • Hypothèse: Equipe homogène Réalisent l’application Effectuent les démonstrations Conçoivent l’application18/10/2012 Blitz-DevOps 10
  11. 11. SCRUM by the book L’équipe (2/3): Le Scrum Master Veille au bon déroulement du planning et des Met les outils à cérémonies disposition Image: cooldesign / FreeDigitalPhotos.net Préserve l’équipe des turbulences Image: Arvind Balaraman / FreeDigitalPhotos.net extérieures Image: Stuart Miles / FreeDigitalPhotos.net18/10/2012 Blitz-DevOps 11
  12. 12. SCRUM by the book L’équipe (3/3): Le Product Owner (PO) Définit les fonctionnalités Maintient le backlog18/10/2012 Blitz-DevOps 12
  13. 13. SCRUM by the book Burndown Chart Retard Rattrapage Tâches non réalisées Dans le sprint18/10/2012 Blitz-DevOps 13
  14. 14. DEVOPS SCRUM18/10/2012 Blitz-DevOps 14
  15. 15. DevOps Scrum le principe SCRUM pour le SI Développement Opérationnels Freedigitalphotos.org18/10/2012 Blitz-DevOps 15
  16. 16. DevOps Scrum le déroulement Le projet Facture d’Affaires Start Release Retro Retro Retro Planning spective Planning spective Planning spective Sprint Sprint Sprint 1 2 3 26.04 16.05 05.06 27.06 • Durée des sprints alignés sur les contraintes projet • Sprints concomitants ou espacés18/10/2012 Blitz-DevOps 16
  17. 17. DevOps Scrum les règles Planification • Estimation de la charge du projet par personne – tâches fixes • SCRUM: estimation des tâches à réaliser – charge fixe • Equipe de spécialistes: les membre ne sont pas interchangeables18/10/2012 Blitz-DevOps 17
  18. 18. DevOps Scrum Tableau de tâches18/10/2012 Blitz-DevOps 18
  19. 19. DevOps Scrum Gestion des tâches avec Redmine et Jasper18/10/2012 Blitz-DevOps 19
  20. 20. DevOps Scrum Gestion des tâches avec Redmine et Jasper18/10/2012 Blitz-DevOps 20
  21. 21. DevOps Scrum Gestion des tâches avec Redmine et Jasper18/10/2012 Blitz-DevOps 21
  22. 22. DevOps Scrum Fiche de tâches18/10/2012 Blitz-DevOps 22
  23. 23. DevOps Scrum Fiche de tâches18/10/2012 Blitz-DevOps 23
  24. 24. DevOps Scrum Allocation des tâches aux artisans Disponibilité (en jours) Sprint 1 Temps alloué Vélocité Charge à au projet Disponibilité estimée réaliser Jacques 20% 13 2,6 2,5 Jean 50% 14 7 6 Gilles 60% 14 8,4 8 Jules 45% 13 5,85 5 Performance Disponibilité totale 23,85 21,5 Focus factor estimé 60% Vélocité prévisionnelle 13 Vélocité effective 12 Focus factor effectif 56%18/10/2012 Blitz-DevOps 24
  25. 25. DevOps Scrum Allocation des tâches aux artisans: Le Burndown Chart18/10/2012 Blitz-DevOps 25
  26. 26. DevOps Scrum Le ramasse miette 2 types de tâches: Image: FreeDigitalPhotos.net - Tâches hors sprint, mal évaluées - Tâches finies, mais pas finies- finies. Ex: doc, déploiement ponctuel, etc.18/10/2012 Blitz-DevOps 26
  27. 27. DevOps Scrum Tableau récapitulatif de backlog18/10/2012 Blitz-DevOps 27
  28. 28. LESSONS LEARNED18/10/2012 Blitz-DevOps 28
  29. 29. Lessons learned Burndown Chart – profils de sprint ‘contrôle’ ‘stress’ ‘démotivation’18/10/2012 Blitz-DevOps 29
  30. 30. Lessons learned Facteurs de réussite Capitaliser sur les petites et grandes réussites « Orienter » la priorité des travaux. Toute tâche doit avoir un responsable Toutes les tâches du sprint doivent être réalisées par des membres de l’équipe agile Le project planning doit être réalisé avec précision18/10/2012 Blitz-DevOps 30
  31. 31. Lessons learned Quelques pièges à éviter • Attention à l’essoufflement : on ne peut pas « sprinter » constamment. • respecter réellement un délai d’au moins 2 jours entre 2 sprints • garder un côté fun de la méthode On peut être sérieux sans être triste !18/10/2012 Blitz-DevOps 31
  32. 32. Lessons learned Quelques pièges à éviter • Ne pas faire l’impasse sur la qualification des tâches • éviter les tâches avec de multiples artisans • ne pas sous-évaluer la durée des tâches • ne pas surévaluer la durée des tâches18/10/2012 Blitz-DevOps 32
  33. 33. Lessons learned Quelques retours « Depuis que je fais de l‟agile, je n‟ai plus de cadavres, je les tue » O. « Le projet a été un passage de l‟ombre vers la lumière », D. « Du bonheur absolu » dans les échanges, F.18/10/2012 Blitz-DevOps 33
  34. 34. 1234 80 PP / 0,50 Projet: Agile Tour 2012 - Strasbourg DV / 0,25 Présenter le retour d’expérience Vialis La présentation power point est terminée. La salle applaudit =;0) Utiliser des extraits du manuel Agile Vialis.18/10/2012 Blitz-DevOps 34
  35. 35. Agile... J’y croa !18/10/2012 Blitz-DevOps 35

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