Agile software development in
practice
Michal Krajíček
The big picture
Agile methodologies
• Scrum
• Kanban
• Extreme Programming
...
Scrum
• Process framework for organizing and
managing work
• Lightweight
• Simple to understand
• Difficult to master
• Not a cookbook
• Defined by roles, events, artifacts and rules
Roles
Product owner
Product owner
• Represents business and stakeholders
• Responsible for the product and ROI
• Defines visions and goals
• Manages Product Backlog
• Explains items in Product Backlog
The team
The team
• Cross functional
• Self organizing
• Collective responsibility
• As a whole defines HOW MUCH and HOW
• Collocation, replaceability, softskills
Scrum Master
Scrum Master
• Responsible for the process
• Facilitator
• Remove impediments
• Coach
• Helps both PO and the team to achieve their
goals
Processes & events
Backlog grooming
• Clarify user stories
• Break down epics into user stories
• Estimate user stories
• Add acceptance criteria
• The team knows his backlog
• Feedback for PO
Example
As a content manager, I can publish a news story to the
corporate website…
…I can publish a news story directly to the corporate website... [5SP]
…I can publish a news story with editor review... [8SP]
…I can publish a news story with legal review... [8SP]
…I can view a news story on a staging site… [5SP]
…I can publish a news story from the staging site to production… [2SP]
Bicycle
Estimations
• Planning poker
1, 2, 3, 5, 8, 13, 20, 40, 100, ? [SP]
(XS), S, M, L ,XL, (XXL)
Estimations
Estimations
Sprint planning
What How
Tasks
• Concrete tasks for the team to complete
• Implement domain logic
• Add database table
• Create new UI form
• Update build script
• Update documentation
• Write unit tests
• ...
Daily Scrum
Sprint review
Sprint retrospective
Artefacts
• Product backlog
• Sprint backlog
• Potentially shippable product increment
• (Scrum wall)
• (Burndown chart)
Scrum rules
• No one can provide advice, instructions,
commentary, or direction to the Team during the
Sprint.
• The Team commits to Product Backlog during the
Sprint planning meeting. The Product Backlog is
frozen until the end of the Sprint.
• The Product Owner must prepare the Product
Backlog prior to the planning meeting.
• During the Daily Scrum, only one person talks at a
time.
…
Scrum summary
Kanban
Scrum
Kanban
After a while…
Engineering practices
• Pair programming
• Test driven development
• …
Resources
http://scrumtrainingseries.com
https://www.scrum.org/Scrum-Guides
Essential Scrum (Kenneth S. Rubin)
Agile Project Management with Scrum
(Ken Schwaber)
http://www.jamesshore.com/Agile-Book
Otázky, diskuze