Scrum is an agile software development framework that focuses on self-organizing cross-functional teams, sprints of work lasting 2-4 weeks, daily stand-up meetings, and empirical process control. The key roles are the Product Owner who prioritizes features, the Scrum Master who facilitates the process, and the self-organizing Development Team. Scrum uses sprints, daily scrums, sprint planning meetings, sprint reviews, and retrospectives to deliver working software frequently in an iterative and incremental fashion.
3. AgendaAgenda
Introduction
What is Agile Methodology?
What is Scrum?
History of Scrum
Functionality of Scrum
Components of Scrum
Scrum Roles
The Process
Scrum Artifacts
Scaling Scrum
Q & A Session
4. IntroductionIntroduction
Classical methods of software development have
many disadvantages:
huge effort during the planning phase
poor requirements conversion in a rapid changing
environment
treatment of staff as a factor of production
New methods:
Agile Software Development Methodology
5. What is Agile ?What is Agile ?
Agile proponents believe
Current software development processes are too
heavyweight or cumbersome
Too many things are done that are not directly related to
software product being produced
Current software development is too rigid
Difficulty with incomplete or changing requirements
Short development cycles (Internet applications)
More active customer involvement needed
CMM focuses on process
6. Contd…Contd…
Agile methods are considered
Lightweight
People-based rather than Plan-based
Several agile methods
No single agile method
XP most popular
No single definition
Agile Manifesto closest to a definition
Set of principles
Developed by Agile Alliance
7. Agile ManifestoAgile Manifesto
A Statement of Values
Individuals and interactions over processes and
tools
Working software over comprehensive
documentation
Customer collaboration over contract negotiation
Responding to change over following a plan
http://www.agilemanifesto.org
8. Agile MethodsAgile Methods
Agile methods:
Scrum
Extreme Programming
Adaptive Software Development (ASD)
Dynamic System Development Method (DSDM)
…
Agile Alliance (www.agilealliance.org)
A non-profit organization promotes agile
development
10. Scrum in 100 wordsScrum in 100 words
Scrum is an agile process that allows us to focus on
delivering the highest business value in the shortest
time.
It allows us to rapidly and repeatedly inspect actual
working software (every two weeks to one month).
The business sets the priorities. Our teams self-manage
to determine the best way to deliver the highest
priority features.
Every two weeks to a month anyone can see real working
software and decide to release it as is or continue to
enhance for another iteration.
11. History of ScrumHistory of Scrum
1995:
analysis of common software development processes not suitable for empirical,
unpredictable and non-repeatable processes
Design of a new method: Scrum by Jeff Sutherland & Ken Schwaber
Enhancement of Scrum by Mike Beedle & combination of Scrum with Extreme
Programming
1996:
introduction of Scrum at OOPSLA conference
2001:
publication “Agile Software Development with Scrum” by
Ken Schwaber & Mike Beedle
Successful appliance of Scrum in over 50 companies
Founders are members in the Agile Alliance
12. CharacteristicsCharacteristics
Self-organizing teams
Product progresses in a series of month-long “sprints”
Requirements are captured as items in a list of
“product backlog”
No specific engineering practices prescribed
Uses generative rules to create an agile environment
for delivering projects
One of the “agile processes”
14. SprintsSprints
Scrum projects make progress in a series of
“sprints”
Analogous to XP iterations
Target duration is one month
+/- a week or two
But, a constant duration leads to a better
rhythm
Product is designed, coded, and tested during
the sprint
16. No changes during the sprintNo changes during the sprint
SprintInputs Tested Code
Change
Plan sprint durations around how long you
can commit to keeping change out of the
sprint
18. Product OwnerProduct 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
Adjust features and priority every iteration, as
needed
Accept or reject work results.
19. The Scrum MasterThe Scrum Master
Represents management to the project
Responsible for enacting Scrum values and practices
Removes impediments
Ensure that the team is fully functional and productive
Enable close cooperation across all roles and
functions
Shield the team from external interferences
20. Scrum TeamScrum Team
Typically 5-10 people
Cross-functional
QA, Programmers, UI Designers, etc.
Members should be full-time
May be exceptions (e.g., System Admin, etc.)
Teams are self-organizing
What to do if a team self-organizes someone off the team??
Ideally, no titles but rarely a possibility
Membership can change only between sprints
22. Spring Planning MeetingSpring Planning Meeting
Sprint Planning
Meeting
Product Backlog
Team Capabilities
Business Conditions
Technology
Current Product
Sprint Backlog
ProductO
wner
Scrum
Team
M
anagem
ent
Custom
ers
Sprint Goal
23. Parts of Sprint Planning MeetingParts of Sprint Planning Meeting
1st
Part:
Creating Product Backlog
Determining the Sprint Goal.
Participants: Product Owner, Scrum Master,
Scrum Team
2nd
Part:
Participants: Scrum Master, Scrum Team
Creating Sprint Backlog
25. SprintSprint
A month-long iteration, during which is
incremented a product functionality
NO outside influence can interfere with the
Scrum team during the Sprint
Each Sprint begins with the Daily Scrum
Meeting
26. Daily ScrumDaily Scrum
Parameters
Daily
15-minutes
Stand-up
Not for problem solving
Three questions:
1. What did you do yesterday
2. What will you do today?
3. What obstacles are in your way?
Chickens and pigs are invited
Help avoid other unnecessary meetings
Only pigs can talk
27. Daily ScrumDaily Scrum
Is NOT a problem solving session
Is NOT a way to collect information about
WHO is behind the schedule
Is a meeting in which team members make
commitments to each other and to the Scrum
Master
Is a good way for a Scrum Master to track the
progress of the Team
28. Scrum FAQsScrum FAQs
Why daily?
“How does a project get to be a year late?”
“One day at a time.”
Fred Brooks, The Mythical Man-Month.
Can Scrum meetings be replaced by emailed status
reports?
No
Entire team sees the whole picture every day
Create peer pressure to do what you say you’ll do
29. Sprint Review MeetingSprint Review Meeting
Team presents what it
accomplished during the sprint
Typically takes the form of a
demo of new features or
underlying architecture
Informal
2-hour prep time rule
Participants
Customers
Management
Product Owner
Other engineers
30. Sprint Retrospective MeetingSprint Retrospective Meeting
Scrum Team only
Feedback meeting
Three questions
Start
Stop
Continue
Don’t skip for the first 5-6 sprints!!!
31. Product BacklogProduct Backlog
A list of all desired work on the project
Usually a combination of
story-based work (“let user search and
replace”)
task-based work (“improve exception
handling”)
List is prioritized by the Product Owner
Typically a Product Manager, Marketing, Internal
Customer, etc.
32. Product BacklogProduct Backlog
Requirements for a system, expressed as a
prioritized list of Backlog Items
Is managed and owned by a Product Owner
Spreadsheet (typically)
Usually is created during the Sprint Planning
Meeting
Can be changed and re-prioritized before
each PM
34. From Sprint Goal to Sprint BacklogFrom Sprint Goal to Sprint Backlog
Scrum team takes the Sprint Goal and
decides what tasks are necessary
Team self-organizes around how they’ll meet
the Sprint Goal
Manager doesn’t assign tasks to individuals
Managers don’t make decisions for the team
Sprint Backlog is created
35. Sprint Backlog during the SprintSprint Backlog during the Sprint
Changes
Team adds new tasks whenever they need to in
order to meet the Sprint Goal
Team can remove unnecessary tasks
But: Sprint Backlog can only be updated by the
team
Estimates are updated whenever there’s new
information
36. Sprint BacklogSprint Backlog
A subset of Product Backlog Items, which
define the work for a Sprint
Is created ONLY by Team members
Each Item has it’s own status
Should be updated every day
37. Sprint BacklogSprint Backlog
No more than 300 tasks in the list
If a task requires more than 16 hours, it
should be broken down
Team can add or subtract items from the list.
Product Owner is not allowed to do it
39. Sprint Burn down ChartSprint Burn down Chart
Depicts the total Sprint Backlog hours
remaining per day
Shows the estimated amount of time to
release
Ideally should burn down to zero to the end of
the Sprint
Actually is not a straight line
Can bump UP
40. Information RadiatorInformation Radiator
"Two characteristics are key to a good
information radiator. The first is that the
information changes over time. This makes it
worth a person's while to look at the display...
The other characteristic is that it takes very
little energy to view the display."
42. Release Burndown ChartRelease Burndown Chart
Will the release be done on right time?
X-axis: sprints
Y-axis: amount of hours remaining
The estimated work remaining can also burn
up
44. Scalability of ScrumScalability of Scrum
A typical Scrum team is 6-10 people
Jeff Sutherland - up to over 800 people
"Scrum of Scrums" or what called "Meta-
Scrum“
Frequency of meetings is based on the
degree of coupling between packets
47. Pros/ConsPros/Cons
Advantages
Completely developed and
tested features in short
iterations
Simplicity of the process
Clearly defined rules
Increasing productivity
Self-organizing
each team member carries
a lot of responsibility
Improved communication
Combination with Extreme
Programming
Drawbacks
“Undisciplined hacking”
(no written
documentation)
Violation of
responsibility
Current mainly carried
by the inventors