Its mainly done, but time is needed to say it's fully ok
No big deal for MRI users due to the lack of native threads
JRuby users actually are the only ones that will really leverage this improvement., JRuby threads == java.lang.Thread
No milestones defined
Rails major design changes tends do be fewer by now
the framework of a developer
"Purple Cow" by Seth Godin, Mainly a business/marketing book, But devs can borrow alot of ideas for building their carrers
Chad's Example: Ipod, Joined a saturated market, Its price was way more expensive than average, Turned out to be a world fever!
My Example: Nintendo NES, Released in a time where the home console market was considered dead(~1983), Tons of low-quality games that saturated the marked causing a massive loss of public interest in games, It bringed the market back to life and turned to be a synonym of electronic entertainment
IT Shops market resembles the initial scenario of both examples, Programmers == Lemmings
People with jobs aren't remarkable
Do you trespass the investments they put in you?
Pragmatic Thinking and Learning by Andy Hunt
To leverage it well you MUST learn Ruby decently!!!
Closures are responsible for 83% of the cool stuff you can do with Ruby
Fluency is productivity, "Experts makes things easy"
Keep calm even if the world is falling apart, "Doom"
Real experience comes from Changes
Brings Evolution, don't be afraid of it!
Keep your critical sense high
Be critical but keep it to yourself, Do something better instead of talking
Ahmdal's Law, Load distribution calculations considering sequential/parallel processing
Major Bottleneck is I/O
Application Scaling, Spreading app servers over different machines, Load balancers, Can be done via DNS as well, Caching, Page rendering cache (Fragment Cache), DB Access cache (Memcached)
Database Scaling, Master Slave Replication, Multi-Master Replication, Sharding, Absolutely no data normalization
1 object per test-case, problematic instantiation = bad smell
Selenium, Good tool but Far from perfect, 1000 ways to do the same thing. Can turn to a mess., Speed issues
Do every effort for, Ex: In a project jay invested lots of time to remove DB access from tests
Foul goal, Doesn't mean your app is properly tested
Focus in high quality tests at high business value parts instead
Acceptance criteria defined at planning
helps to estimate
User Stories Applied by Mike Cohn
Different stories templates
"Feature Injection" concept by Chris Matts
Rspec + Selenium
Main issue: Selenium is slow
Enforces parallel acceptance tests
Initializing the domain object in the own test is better
Use ObjectMother pattern instead
A living proof of successful agile+lean driven company