stories from flex company - odd-e · 2 © nokia siemens networks stories from flexible company /...
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![Page 1: Stories from flex company - Odd-e · 2 © Nokia Siemens Networks Stories from Flexible Company / Bas Vodde / 2007 Public DISCLAIMER! This presentation is based on my views and my](https://reader033.vdocuments.mx/reader033/viewer/2022042015/5e73ecd5f332fb5a6a4bd365/html5/thumbnails/1.jpg)
1 © Nokia Siemens Networks Stories from Flexible Company / Bas Vodde / 2007Public
Stories from the Flexible CompanyBas VoddeAarhus, DenmarkSeptember 2007
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2 © Nokia Siemens Networks Stories from Flexible Company / Bas Vodde / 2007Public
DISCLAIMER!
This presentation is based on my views and my opinion. This is not the view of the company and also others have experienced the same time in a different way :)
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3 © Nokia Siemens Networks Stories from Flexible Company / Bas Vodde / 2007Public
Stories
• Creation story• First months• Flexible team• Scrum• Clearcase and other ill weeds• Becoming Flexible Company• CMMi• Failures• Teaching TDD• Metrics• The dead Scrum Master
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4 © Nokia Siemens Networks Stories from Flexible Company / Bas Vodde / 2007Public
Creation story
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5 © Nokia Siemens Networks Stories from Flexible Company / Bas Vodde / 2007Public
Problems in product development
• Many faults found in testing… and by customer.• Most important features are not implemented in time.
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6 © Nokia Siemens Networks Stories from Flexible Company / Bas Vodde / 2007Public
Obvious solution!
Architecture
and
Requirement
analysis
Development Test
Milestone
#1
Milestone
#2
Milestone
#3
Milestone
#4
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Maybe not?
What if we would develop more efficiently and with a better quality?
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Result:
Flexible R&D
Make R&D more flexible.
By introducing,
Agile and iterative development
To Nokia Networks
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First months
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The search
Where in Networks did people experimented with Agile?
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The Nokia Test (called so by Jeff)
You know when you are not doing iterative developme nt when:– Iterations are longer than 2-4 weeks.
– Team tries to complete specification before programming.
– An iteration does not include testing.– Iteration does not produce workable code.
– Detailed (task level) plan are accurate estimates are expected at the beginning of a project.
– The sprint plan doesn’t reflect what the team is doing.
You know when you are not doing agile development w hen:– There is little co-operation within the team.
– Design and code is produced in individual effort.– Progress is measures by hours spend or documents created instead of
working code.
– Builds are done once every three weeks.
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Suddenly
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13 © Nokia Siemens Networks Stories from Flexible Company / Bas Vodde / 2007Public
Share information, be open!
Newsgroups
Newsletter
Agile Wiki
Scrum Master mailing list
Flexible R&D programs list
AgileNet Blog Flexible R&D blog
Product Owner Mailing
list
Open Space Gathering
Continuous Integration Wiki
AgileNokia wiki
T-Shirt
Reports & presentations
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What do we do?
Give and arrange training
Facilitation
Organize Gatherings
Create Communities
Coaching
Project Support
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Support, NOT control
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Flexible Team
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No evangelists, cross functional team!
- Cmm assessor, process architect.- Test specialist, TPI assessor
- Developer- Requirement process expert
- Project advisor- Quality & process expert
And… 2 agile evangelists.
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Monday Morning
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Result:
Agile evangelists…
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Scrum
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Simple
A good start
Focus on management (?)
Craig & Ken
Good training available
Not selected! Emerged
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Scrum Masters
Scrum Masters in Nokia / Nokia Siemens Networks
0
100
200
300
400
500
600
700
Q105 Q205 Q305 Q405 Q106 Q206 Q306 Q406 Q107 Q207 Q307 Q407
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Clearcase and other ill weeds
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Individuals and interaction over process and tools
But some tools are always trouble.
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25 © Nokia Siemens Networks Stories from Flexible Company / Bas Vodde / 2007Public
Continuous integration
“1% of my time goes in setting up continuous integration. 99% goes into getting it working with clearcase”
“Luntbuild is nice and works fine, but not with clearcase”
“Clearcase is not made for this style of development. At least don’t use dynamic views”
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Get rid of it!
- Cost-benefit analysis clearcase vs subversion.
- Users survey.
- Support in transition.
- Other examples.
But… “Ill weeks grow apace”.
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Becoming the Flexible Company
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“Making R&D more flexible”
How about that for a sub-optimization?
How is a Flexible R&D going to be useful for our customers?
What about Flexible Product Managementor Flexible delivery, or…?
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29 © Nokia Siemens Networks Stories from Flexible Company / Bas Vodde / 2007Public
Flexible R&D -> Flexible Company
The goal of Flexible (Agile) software development must always be to work more flexible with the customers.
That’s where the ultimate benefit for the company comes. That’s how agile development can grow.
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CMMi
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Finding the roots!
Cmmi ->Roots in Quality management, Deming, Juran
Agile ->Roots in Lean… based on Deming, Juran, Ishikawa, Ohno
Same roots.
We should be able to agree, right?
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BUT!
What are the assumptions behind CMMi?
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Cmmi: don’t
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Failures
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Easier to ruin scrum than to make it good.
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After one release, switch to new management.
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Strong super project management.
Developers jailed.
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Teaching TDD
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Lecture in TDD
50 people at 9:00
5 people at 17:00
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Change -> TDD needs to be done, not told.
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Only way to teach Test-Driven-Development
Get a coach. Let him sit beside you for weeks.
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Fault finding profile and other useless metrics.
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Fault finding profile
Percentage of faults found in testing phas^H^H^H^H level.
Goal: Measure development and improve early defect finding.
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What if test failed does not mean fault found?
Was that an assumption behind the metric?
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Do we report defects from the CI system?
Assumption of:
Fault Finding Profile
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How do we estimate the total tests when test-driving?
Assumption of:
Testing progress
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Conclusion:
When using Scrum: All metrics must change.
Especially metrics tied to performance evaluation :)
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The dead scrum-master
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Push the organization
Don’t push too hard, or you’ll end up in China.