4. The Agile Manifesto (2001)
Decrease “rigidness” of Waterfall model
Introduce more flexibility/agility
Structure the cowboy coding approach
New Ideas
5. Agile Manifest: in a nutshell
It’s a set of guiding principles and 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
That is, while there is value in the items on the right,
we value the items on the left more.
(see agilemanifesto.org)
9. Scrum :=
…is an agile framework for software
development
…that focuses on iterative and incremental
production of working software
…with emphasis on stakeholder
communication.
11. 1. Core Principles
Short iterations (=sprints)
Increments (first things first)
Production of software at each end of a sprint
“Potentially shippable”
Heterogeneous teams covering all required
functions
Customer/stakeholder integration
Ability to adapt to change
Build less
12. Build Less – focus on core
Often or Always Used: 20%
Rarely
Sometimes
16%
19%
Never
45%
Often
13%
Always
7%
Standish Group study reported at XP2002 by Jim Johnson, Chairman; Internal software products
Remainder: 80%
14. 2. Roles
Scrum has three roles
ScrumMaster
I’m the team coach. I teach
`rules of the game then
step back and let the
team play
Team member
We have 7 people in our team,
`
test, developers, design…
Product Owner
I’m responsible for overall
`
product success
14
Graphics Source: Gabrielle Benefield (2011) “The little book of Scrum”
15. Role of the Product Owner
Understand the business value
Is responsible for the RoI
Deliver the right product set
Deliver it in right timing
Deliver it in the right order that will maximize
revenue
Satisfy and excite the customer
Dynamically respond to change faster than
competitors
Graphics Source: Gabrielle Benefield 15
(2011) “The little book of Scrum”
16. ScrumMaster
Ensures that the team and Product Owner
is fully functional and productive
Enables close cooperation across all roles
and functions and removes barriers
Shields the team from external
interferences
Removes any impediments
Coordinates the Scrum meetings
16
Graphics Source: Gabrielle Benefield (2011) “The little book of Scrum”
17. Team
Cross-functional, max seven people
Decides how they will get the work done
Has the right to do everything possible to
reach the Sprint goal
Organizes itself and its work
Produces high quality work each iteration
and reviews them with the Product
Owner
For larger projects: Scrum of Scrums
17
Graphics Source: Gabrielle Benefield (2011) “The little book of Scrum”
19. Exercise: Item Identification
App development project. Consider the following:
You are a team who should implement a car configurator mobile
app for Jaguar.
Develop items for the product backlog in a simulated
planning meeting
1. Identify the main users of a system
2. Items are called “user stories”
Answer questions who? What? Why?
As a <user role> I want <goal> so that <reason>
Eg: flight booking system
“As a frequent flyer I want to book a trip using miles so that I can
save money”
20. Exercise: Silent Sort
In your teams, sort the various user stories
according to priority
5’ strictly no speaking
Feel free to change and change and change again
Add stories if they come up
5’ discussion and creating consens
Add further stories if they come up
31. Daily Scrum
Rules:
- Every work day
- Same place
- Start on time / End on Time
- Max 15 Minutes
Answer 3 questions:
1. What did I do since we last met ?
2. What do I plan to do today ?
3. What is blocking me from progressing ?
- Speak to fellow Team members
- Everyone must attend
- One person talks at a time
- Not a status tracking meeting
- Issues are raised -- not solved !
33. 5. Rules
In Scrum, there are Chickens and Pigs…
Only the PO can change the product backlog
Only the team can change the sprint backlog
But it also commits to the features selected
Any rule that the team considers useful can be
introduced
To increase productivity
To avoid (team) problems
… whatever makes sense for the team
36. The Scrum Take-aways
Foundations are comprehensive…
…but application is practical (simple)
…the combination makes the difference !
“ScrumBut(t)”
37. The Scrum Take-aways
My personal differentiators of Scrum are:
Iterations and increments
Flexible and adaptive
Focus on core of software development
Working software instead of extensive documentation
Split up of Project Manager role
Project Owner and ScrumMaster
Focus on communication
Daily scrum
Co-Location, attitude and tools
Discipline, good old whiteboard
