43. What is Scrum?
• Scrum is an agile process that allows us
to focus on delivering the highest
business value in the shortest time.
44. What is Scrum?
• It allows us to rapidly and repeatedly
inspect actual working software
(every two weeks to one month).
45. What is Scrum?
• The business sets the priorities. Teams
self-organize to determine the best way
to deliver the highest priority features.
46. What is Scrum?
• Every two weeks to a month anyone can
see real working software and decide to
release it as is or continue to enhance it
for another sprint.
47. Scrum Characteristics
• Self-organizing teams
• Product progresses in a series of
month-long ―sprints‖
• Requirements are captured as items in a
list of ―product backlog‖
48. Scrum Characteristics
• No specific engineering practices
prescribed
• Uses generative rules to create an agile
environment for delivering projects
• One of the ―agile processes‖
49. The Agile Manifesto–a statement
of values
Individuals and
over Process and tools
interactions
Comprehensive
Working software over
documentation
Customer
over Contract negotiation
collaboration
Responding to
over Following a plan
change
Source: www.agilemanifesto.org
52. Sprints
• Scrum projects make progress in a series of
―sprints‖
• Analogous to Extreme Programming
iterations
• Typical duration is 2–4 weeks or a calendar
month at most
53. Sprints
• A constant duration leads to a better rhythm
• Product is designed, coded, and tested
during the sprint
• Rather than doing all of one thing at a time...
...Scrum teams do a little of everything all
the time
54. Sprints
• During the Sprint, NO CHANGES
• Plan sprint durations around how long you
can commit to keeping change out of the
sprint
57. Product Owner
• The product owner is responsible for
bridging the gaps between the customer,
business stakeholders, and the
development team.
• The Product Owner is typically a project's
key stakeholder with a vision for what is to
be built.
58. Product Owner
• Define the features of the product
• Decide on release date and content
• Be responsible for the profitability of the
product (ROI)
•
Prioritize features according to market value
59. Product Owner
• Adjust features and priority every iteration,
as needed
• Accept or reject work results
• Closely collaborates with the team on an
ongoing basis and guides and direct the
team (e.g. managing product backlog,
feedback, signing off work results)
62. ScrumMaster
• Ensure that the team is fully functional and
productive
• Enable close cooperation across all roles
and functions
• Shield the team from external interferences
63. ScrumMaster
• The ScrumMaster is often considered a
coach for the team, helping the team do the
best work it possibly can.
• The ScrumMaster is also often viewed as a
protector of the team.
• Protects the team from complacency –
knows when is the time to push for more
65. Team
• Typically 5-9 people
• Cross-functional:
• Programmers, testers, user experience
designers, etc.
• Members should be full-time
• May be exceptions (e.g., database
administrator)
66. Team
• Teams are self-organizing
• Ideally, no titles but rarely a possibility
• Membership should change only between
sprints
68. Sprint Planning
• Is the planning session before each sprint,
where the scope of work for an iteration is
determined.
• The purpose of the Sprint Planning is to
decide on the sprint commitments, and
ensure their content is clearly
communicated across the board
69. Sprint Planning
Team
Meeting
capacity
Sprint prioritization
Product • Analyze and evaluate product Sprint
backlog backlog goal
• Select sprint goal
Business
conditions Sprint planning
• Decide how to achieve sprint
Current goal (design)
Sprint
product • Create sprint backlog (tasks) backlog
from product backlog items (user
stories / features)
Technology • Estimate sprint backlog in hours
70. Sprint Planning
• Team selects items from the product
backlog they can commit to completing
• Sprint backlog is created
• Tasks are identified and each is estimated
(ideally 1-8 hours MAX)
71. Sprint Planning
• Collaboratively, not done alone by the
ScrumMaster
• High-level design is considered
As a vacation planner, I want to
see photos of the hotels. Code the middle tier (8 hours)
Code the user interface (4)
Write test fixtures (4)
Code the foo class (6)
Update performance tests (4)
73. Sprint Review
• At the end of each sprint a sprint review
meeting is held. During this meeting the
Scrum team shows what they accomplished
during the sprint. Typically this takes the form
of a demo of the new features – no slides
• No more than two hours of preparation time
for the meeting - is intentionally kept very
informal
74. Sprint Review
• Participants in the sprint review typically
include the Product Owner, the Scrum Team,
the ScrumMaster, management, customers,
and developers from other projects if apply
• Project is assessed against the Sprint Goal
• Important to achieve the overall goal of the
sprint
76. Sprint Retrospective
• It is a brief, dedicated period at the end of
each sprint to deliberately reflect on how the
team are doing and to find ways to improve
• Done after every Sprint
• Less than 1 hour preferable
77. Sprint Retrospective
• The entire team, including both the
ScrumMaster and the Product Owner should
participate, possibly customers and others
• Recommended to do it outside the office
• The next retrospective is often begun by
reviewing the list of things selected for
attention in the prior retrospective.
78. Sprint Retrospective
Whole team gathers and discusses what they’d
like to:
Start doing
Stop doing
This is just one
of many ways to Continue doing
do a sprint
retrospective.
80. Daily Scrum Meeting
• Happens Daily
• 15-minutes Max
• All Standing (aka. Stand-up Meeting)
81. Daily Scrum Meeting
• It is NOT for problem solving
• Whole world is invited
• Only team members, ScrumMaster, product
owner, can talk
• Helps avoid other unnecessary meetings
82. Daily Scrum Meeting
• Everyone answers 3 questions:
1. What did you yesterday?
2. What will you do today?
3. Is anything in your way?
These are NOT status for the ScrumMaster
They are commitments in front of colleagues
84. Product backlog
• The requirements
• A list of all desired work on
the project
• Ideally expressed such that
each item has value to the
users or customers of the
product
86. Sample Product backlog
Backlog item Estimate
Allow a guest to make a reservation 3
As a guest, I want to cancel a
5
reservation.
As a guest, I want to change the dates
3
of a reservation.
As a hotel employee, I can run RevPAR
8
reports (revenue-per-available-room)
Improve exception handling 8
... 30
... 50
87. The Sprint Goal
• is a short, one - or two-sentence, description
of what the team plans to achieve during the
sprint.
• It is written collaboratively by the Team and
the Product Owner.
88. Sprint Goals
Sample Ecommerce App
• Implement basic shopping cart functionality
including add, remove, and update
quantities.
• The checkout process—pay for an order,
pick shipping, order gift wrapping, etc.
90. Sprint backlog
• Individuals sign up for
work of their own choosing
• Work is never assigned
• Estimated work remaining
is updated daily
91. Sprint backlog
• Any team member can add,
delete or change the sprint
backlog
• If work is unclear, define a
sprint backlog item with a
larger amount of time and
break it down later
92. Sprint backlog
• The Product Owner does not get to say, "We
have four sprints left so you need to do one-
fourth of everything I need.
93. Sprint backlog
• It is up to the Team to
determine how much they
can do in the sprint
• Work for the sprint
emerges
• Update work remaining as
more becomes known
94. Sample Sprint backlog
Tasks Mon Tues Wed Thur Fri
Code the user interface 8 4 8
Code the middle tier 16 12 10 4
Test the middle tier 8 16 16 11 8
Write online help 12
Write the foo class 8 8 8 8 8
Add error logging 8 4
95. Sprint backlog
• During the sprint, team members are
expected to update the sprint backlog as
new information is available, but minimally
once per day. Many teams will do this during
the daily scrum.
96. Sprint backlog
• Once each day, the estimated work
remaining in the sprint is calculated and
graphed by the ScrumMaster, resulting in a
Sprint Burndown chart
99. Tasks Mon Tues Wed Thur Fri
Sprint Burndown Chart
Code the user interface 8 4 8
Code the middle tier 16 12 10 7
Test the middle tier 8 16 16 11 8
Write online help 12
50
40
30
20
10
Hours
0
Mon Tue Wed Thu Fri
100. Sprint backlog
• The team does its best to pull the right
amount of work into the sprint but
sometimes too much or too little work is
pulled in during the Sprint Planning meeting
• In this case the team needs to add or
remove tasks and the Product Owner
consulted
103. Portions of this Presentation are
from the following sources:
• Mike Cohn, Mountain Goat Software, LLC
• Scrum.org
• Scrum Alliance, scrumalliance.org