scrum mythbusters': ilan goldstein @ colombo agile conference 2014
TRANSCRIPT
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Popularity of Agile Development
7th Annual State of Agile Development Survey 2013 by Version One (Sample size = 4048 respondents)
Organisations practicing Agile
84% 16%
More than 84% of respondents said their organisations were practicing Agile development, up from 80% in 2011 (sample size = 4048).
YES NO
3400 respondents
648 respondents
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Scrum
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Recognition
Implementation ?
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Myth 1
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S c r u m is an acronym
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S C R U M Speaker Claims to Really Understand Myths
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Tight, self-organising, collaborative teamwork
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Ancient Spartan shield-locking phalanx
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is an acronym
S C R U M
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Myth 2
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Sprints
S P E E D =
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84%?
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Agile processes promote
The team should be able to maintain a
sustainable development.
constant pace indefinitely
Agile Manifesto 8th principle
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Focus Vs No end...
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Feature
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Sprints
S P E E D =
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Myth 3
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only for software
development
Scrum is an approach
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Software???
Engineering???
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§ Schools § Homes § Research § Training materials
SAAB Gripen Fighter Jet
WikiSpeed Car
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only for software
development
Scrum is an approach
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Myth 4
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As a something user, I want to perform a certain function to achieve some benefit.
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Individuals and interactions over processes and tools
Working software over comprehensive documentation
Customer collaboration over contract negotiation
Responding to change over following a plan
That is, while there is value in the items on the right, we value the items on the
LEFT MORE. Thanks to: Agile Alliance
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We don’t document, we’re agile!
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Individuals and interactions over processes and tools
Working software over comprehensive documentation
Customer collaboration over contract negotiation
Responding to change over following a plan
That is, while there is value in the items on the right, we value the items on the
LEFT MORE. Thanks to: Agile Alliance
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Not just 1 0 0 0 1 0 1 0 1 0 1 0 0 1 1 0 1 0 1 0 1 1 1 1 1 0 1 0 1 1 0 0 1 0 0 1 1 0 1 0 1 0 1 1 1 1 0 0 1 1 1 0 0 0 1
Code
Testing
Documentation
Audit
Support
User
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Memory Control upfront
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of detail at the Right level
right time
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anti- documentation
Scrum is
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Myth 5
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User Story
Scrum teams must use the
format
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As a something user, I want to perform a certain function to achieve some benefit.
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Product Backlog Items
User Stories
Bugs
Technical Work
Knowledge Acquisition
The product backlog can be cosmopolitan
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User Story
Scrum teams must use the
format
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Myth 6
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Planning Poker
Sprint Task Board Sprint Burndown Chart
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Planning Poker
100 40 20 13 8
5 3 2 1 1 2
∞
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Estimation is optional
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Not Started
In Progress
Ready to Verify Done!!!
As a…… I want to…… So that……
As a…… I want to…… So that……
As a…… I want to…… So that……
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Total hours of w
ork left to do on
expected days
300
270
240
210
180
150
120
90
60
30
0 1 2 3 4 5 6 7 8 9 10
Days
? Sprint Burndown
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Total hours of w
ork left to do on
expected days
300
270
240
210
180
150
120
90
60
30
0 1 2 3 4 5 6 7 8 9 10
Days
Team tallies up duration of collective sprint tasks
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Total hours of w
ork left to do on
expected days
300
270
240
210
180
150
120
90
60
30
0 1 2 3 4 5 6 7 8 9 10
Days
Daily tally
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Total hours of w
ork left to do on
expected days
300
270
240
210
180
150
120
90
60
30
0 1 2 3 4 5 6 7 8 9 10
Days
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Total hours of w
ork left to do on
expected days
300
270
240
210
180
150
120
90
60
30
0 1 2 3 4 5 6 7 8 9 10
Days
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YOU GUYS SUCK! You’re already
behind and you’ve barely started!
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Total hours of w
ork left to do on
expected days
300
270
240
210
180
150
120
90
60
30
0 1 2 3 4 5 6 7 8 9 10
Days
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It’s not all bad….
Swarming
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USE WITH CARE
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are fundamental to Scrum
Planning Poker
Sprint Task Board Sprint Burndown
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Myth 7
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two weeks
Pre-work must fit into
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Work before first delivery Sprint
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Official
Mandated
Sprint Zero
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Initial Product Backlog
Formulation
SM D PO
Vision Creation
Team Formation Sourcing Environments
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Sprint 0
= 2 weeks???
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FOR PURPOSE
F T I
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two weeks
Pre-work must fit into
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Myth 8
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end
You must ship
or can only ship
at the
of every Sprint
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Potentially shippable
increment product
Potentially
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T E S
D
V A L I D T
D E M O N S T R E B L A T E D
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Release after multiple sprints
Release every sprint
Release every feature
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Scrum is no longer agile
enough!
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At LEAST have
something potentially shippable
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end
You must ship
or can only ship
at the
of every Sprint
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Myth 9
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Product Owner
Sprint Review is the event
to engage the
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Scrum Team
D D D
D PO SM
SH SH SH
Broader stakeholder community
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PO D
Walkthrough
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G PASenerally G
ccepted A crum S
ractice P
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Product Owner
Sprint Review is the event
to engage the
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Myth 10
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failure Sprint is a
when the team does not complete
everything in the Sprint Backlog
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Sprint Backlog
Sprint Commitment =
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Team commits to do their best
“ ”
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SPRINT COMMITMENT
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PLAN GUARANTEE ≠
PERFECT KNOWLEDGE
WHEN DONE =
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Commitment
Forecast
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Sprint
Is my Sprint a success or failure?
Success Failure
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100% 0%
Team 1
0% 100%
Team 2
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BONU
Constant accuracy is a false economy
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Day Tester Programmer 1 Programmer 2
1
2
3
4
5
6
7
8
9
10
Test Design
Test Design
Test Design
Programming
Programming
Programming
Programming
Programming
Programming
Test Automation
Test Design
Test Automation Programming
Programming
Programming
Test Automation
Programming
Programming
Rework
Programming
Programming
Test Automation
Programming
Backlog Refinement
Exploratory Testing
Confirm Adjustments
Backlog Refinement
Walkthrough
Sprint Planning
Review and Retrospective Rework Rework
Walkthrough
Walkthrough
Exploratory Testing
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Fear of over-extending
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NEAR HORIZON PLANNING
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Swarm to deliver product increments
Swarming
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LESS
MORE
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100% ACCURATE FORECAST
CULTURE OF
FEAR =
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PLANNED
PLANNED
PLANNED
PLANNED
PLANNED
0% 100%
PLANNED
PLANNED
PLANNED
PLANNED
0% 100%
Sometimes over
EXTRA
Sometimes under
PLANNED
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CONTINUOUS IMPROVEMENT
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failure Sprint is a
when the team does not complete
everything in the Sprint Backlog
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Myth 11
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end-to-end
Requirement must
in the one Sprint
be completed
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D D
D
D D
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FUNCTIONAL DESIGN
TECHNICAL DESIGN
TEST DESIGN
DEVELOPMENT
TESTING
PB
I A
SP
RIN
T 3
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Sprint...
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often unpredictability =Functional
design
requires socialization
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Delays
Waste
Confusion
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end-to-end
Requirement must
in the one Sprint
be completed
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Myth 12
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cross- functional
All Scrum team
members must be
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Design Team
Front-end Development
Team
Testing Team
Back-end Development
Team
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TESTING
TECHNICAL WRITING
US
ER
EX
PE
RIE
NC
E
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Can a UX designer
potentially conduct
some testing?
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Teamwork
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D
My bit is done, it’s your
problem now
D
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cross- functional
All Scrum team
members must be
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Final Myth...
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D D
D
D D
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SCRUMBUT
Scrum but We try to do we have to
conduct a testing Sprint from time to time
“ ”
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Rome wasn’t built in a day!
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SCRUMBUT
SCRUM IN PROGRESS
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HYPOCRITICAL
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Incrementally
iteratively improve
products
process of Scrum
&
not just our
but also the
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It’s not about loops and lists...
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Close feedback loops as soon as possible
Continuously improve both product & process
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