Ruby on Rails is a web application development framework written in Ruby that makes web development simpler and more productive. It uses conventions over configurations, test-driven development, and an agile approach to build applications quickly with clean and simple code. Some of its main principles include DRY (Don't Repeat Yourself), convention over configuration, opinionated software development, agile development with user stories and iterations, and test-driven development.

1. Why I Love
Ruby on Rails

2. What is
Ruby
on
Rails?

3. Ruby is
object-oriented
dynamic
programming language
simple from outside
powerful inside

4. Ruby on Rails
Web applications development framework
Written in Ruby programming language
Extracted from 37signals Basecamp application
Open source software
Focused on productivity of developers
Agile software development approach

5. Main Principles
DRY - Don’t Repeat Yourself
Convention over Configuration
Opinionated software

6. Agile software
development
User
stories Iteration
Iteration development
Code & tests
tasks
Pirority
Demonstration
1-2 weeks Acceptance
Regular
planning
meetings Production

7. Test Driven Development
Create test
Execute test
Create code
Execute test
Refactor

8. Simple & Beautiful
Code

9. Usability

10. Books

11. Community

12. Open-source
culture

13. “Enterprise-ready”
Some references...

14. Thanks!
Raimonds
Simanovskis
http://blog.rayapps.com
http://github.com/rsim
http://elietas.wordpress.com
http://ruby.lv