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Are
you
ready
to
rock?
                  Chris&an Heilmann
Leancamp, London, England, May 2010
Some people call
me a “Rockstar
developer”...
The reason is that I
can churn out
demos and
products really fast.
http://keywordfinder.org/
http://isithackday.com/hacks/guardian/
http://icant.co.uk/geomaker/
http://isithackday.com/geoplanet-explorer/geodrilldown.php
http://icant.co.uk/geomaker/index.php
http://github.com/codepo8/QuickTrans
http://icant.co.uk/goohoobi/index.php?research
h;p://uk‐house‐prices.com/
... and I weep for
those who take this
“Rockstar” hoo-hah
serious.
DO WE NEED
     ROCKSTARS?
No, we need
pragmatic thinking.
So you want to
release some cool
products to the
world...
Let me introduce
you to some of the
technical things you
need to face...
Data           Environment
       Interface
How do we normally
start a new
product?
Summoning the inner
demon!
And we try to tackle
all of it ourselves.
And we fail...
Our users walk out
on us...
And we
wonder
what went
wrong.
You were just not
lazy enough!
You don’t need to
build the perfect
product.
You need to build
something that
people want to use.
Data           Environment
       Interface
Data is the most
important part of
your product.
You either need
unique and
interesting data...
Or you need to
make it dead easy
for people to enter
theirs.
And you need to
have means of
allowing people to
enhance their data.
You should also
think very much
about building your
product on top of a
data API.
The reasons are
obvious:
You can change the backend or the
frontend when you need to.
You build them in parallel.
You can have various different
interfaces to the same content (mobile,
web, iPad...)
You give third parties access to your
data and not to your system.
You crowdsource innovation.
Success stories?
Using other
people’s APIs also
allows you to enrich
your data.
This wasn’t easy
and took a while to
get into in the past.
Which annoyed us,
which is why we
created a simple
way.
YQL       h;p://developer.yahoo.com/yql/console/
YQL       h;p://developer.yahoo.com/yql/console/




     select {what} from {where}
          where {condi&ons}
http://winterolympicsmedals.com
http://www.guardian.co.uk/news/datablog/
2010/feb/11/winter-olympics-medals-by-country
select * from csv where url="http://
spreadsheets.google.com/pub?
key=tpWDkIZMZleQaREf493v1Jw&output=
csv" and
columns="Year,City,Sport,Discipline,Countr
y,Event, Gender,Type" and Year="1924"
http://isithackday.com/csv-to-webservice/
http://github.com/yql/yql-tables
Using YQL has a lot of
benefits:
 No time wasted reading API docs
 Using the console makes creating
 complex queries dead easy.
 Data filtering down to the least
 amount necessary.
 Fast pipes.
 Caching + converting
 Server-side JavaScript
Data           Environment
       Interface
Users are strange
creatures.
You are not your
users.

You are far too
close to the subject
matter.
Only real user
testing will tell you
what works with
users.
Instructions will be
misread.
Only real user
testing will tell you
what works with
users.
You can do cheap
and fast user
testing.
Or you can build on
things that were
already tested for
you.
http://developer.yahoo.com/ypatterns
http://developer.yahoo.com/ypatterns/wireframes/
Data           Environment
       Interface
All browsers
secretly hate
you.
http://developer.yahoo.com/yui/articles/gbs/
Build a CSS layout that works




    http://developer.yahoo.com/yui/grids/builder/
Use already existing widgets



  http://isithackday.com/hacks/cantine/
       index.php?loc=covent+garden




  http://isithackday.com/hacks/cantine/
http://isithackday.com/hacks/delhi/
http://developer.yahoo.com/yui/
http://developer.yahoo.com/yui/docs/
http://developer.yahoo.com/yui/examples/
The elevator lift pitch
YUI is the system that Yahoo uses to
build its web sites. It is constantly
tested to work for the largest amount
of users, free, open source and covers
everything from design patterns to out-
of-the-box widgets. It is modular and
you can use only what you need. You
can either host it yourself or get it from
a network of distributed servers.
Are you ready to rock?
 Chris&an Heilmann
 h;p://wait‐&ll‐i.com             Cheers
 h;p://developer‐evangelism.com
 h;p://twi;er.com/codepo8   

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Leancamp - are you ready to rock