Vakmanschap
! Meterschap
Martijn Dashorst

© Grolsch

Agenda
•Wie ben ik?
•Vakmanschap van een
ontwikkelaar
•Gereedschappen van
een vakman

Wie ben ik?

Mar tijn Dashorst

Ontwikkelaar
sinds 1997

Apache Wicket
The Apache Software Foundation

Co-auteur

Topicus

Zorg Finance Onderwijs

Zorg
Huisartsen
Electronisch Patient
Dossier
Electronisch Kind
Dossier
Zorgverleners

Finance
Hypotheken
Verzekeringen
Backoffice verwerking

Onderwijs
•basisonderwijs
basisonderwijs
•voortgezet onderwijs
voortgezet onderwijs
•MBO/ROC
MBO/ROC

iDay
Top
2009
8 mei
2
ay.nl
/topid
http:/

TopiConf
13 oktober 2009
http://topiconf.nl
© De Boom Fotografie
http://www.flickr.com/photos/thijsch/2852113747/

Afstuderen!
• Google Apps @ School
• Automatische roosterplanner
voor ouderavonden
• Het zorgportaal
• Realtime testfeedback
dashboard

Afstuderen!
• Sociale netwerken in
administratieve systemen
• Security en onderwijssystemen
• Digitaal bulletinboard
• Grote applicaties met kleine
modules

Vakmanschap van
een ontwikkelaar

Waarom is
programmeren leuk?

1. The sheer joy of making things

2. Making things that are useful to
other people

3. Solving complex puzzles

4. Always learning

5. Working in a tractable medium

It's the only job I can think of where I get
to be both an engineer and an artist
[...] where the boundaries of
imagination are the only real
limitation.
Andy Hertzfeld

Het vakmanschap
van een ontwikkelaar

Academische software

“Academics want to figure out new ways of
doing stuff, doing it more efficiently... or at all.”
Ted Neward

Voor: Practicum assistent

Levensduur: practicum/
artikel/onderzoek

Availability: 0.01%

Bedrijfssoftware

“ Practitioners want to get business
problems done, quickly,
correctly... or at all”
Ted Neward

Voor: eindgebruikers

Levensduur: 10 jaar

Availability: 99.999%

00:05:15
downtime per jaar

Het vak van de Software
Developer

Renaissance in
Software
Development

Programmer - an organism that
turns coffee into software.

“ We are not laborers, we are not factory
workers... We are professionals like
doctors, like lawyers”
Robert C. Martin

Agile manifesto
Individuals and interactions over processes and tools
Working software over comprehensive documentation
Customer collaboration over contract negotiation
Responding to change over following a plan
Craftmanship over Execution

Manifesto for
Software Craftsmanship
Not only working software,
but also well-crafted software
Not only responding to change,
but also steadily adding value
Not only individuals and interactions,
but also a community of professionals
Not only customer collaboration,
but also productive partnerships

Disciplines van een vakman

Gebruik goed gereedschap
“Notepad is geen IDE”

Don’t write
bad code!
Robert C. Martin

DRY–Don’t Repeat Yourself
“Every piece of knowledge must have a
single, unambiguous, authoritative
representation within a system”

Doen is beter dan niets doen
“ Nothing settles an argument better than seeing it run...”
Robert C. Martin

Boyscout rule: leave the
campground cleaner than you
entered it

QA vindt
niets

Vermijd debugging

“Always code as if the guy who
ends up maintaining your code will
be a violent psychopath who
knows where you live.”
–Martin Golding

Hoe word en blijf
ik een vakman?

Care about your craft
“ Why spend your life developing software unless
you care about doing it well?”
Pragmatic Programmer

Think! about your work
“Turn off the autopilot and take control.
Constantly critique and appraise your work.”
Pragmatic Programmer

Kies de juiste baan

Werk mee aan open
source projecten
“Anyone can use Struts,
few can say Struts Committer”
– Chad Fowler

Bezoek user groups en
conferenties

Lees

the best software developers have a certain pride in
their work, stand by what they have done and are
“
willing to learn from others to improve.
–Sean Hanly

Gereedschappen
van een vakman

1. Programmeertalen

2. Build tools

3. Testing tools

4.Static code
analyzers

5. Source
Code
Control

6. SQL

7. Refactoring

8. Open Source

9. Continuous Integration

10. Boeken

Bedankt!

Bronnen
The Renaissance of Craftmanship
Robert C. Martin (Uncle Bob)
The Pragmatic Programmer
Dave Thomas & Andy Hunt
Manifesto for Agile Software Development
Kent Beck, Robert C. Martin, Dave Thomas, Martin Fowler, et al.
The Mythical Man Month
Frederick Brooks
Vakmanschap is Meesterschap
Grolsch

Agenda
28 mei TopiDay http://topiday.nl
13 oktober TopiConf http://topiconf.nl
Doorlopend: afstuderen/stages