Growing large web applications
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The document discusses the challenges faced by developers of large web applications, including performance issues, complexity, and employee retention. It emphasizes the importance of effective communication, automated testing, and good design practices to improve development speed and reduce bugs. Strategies such as code reviews and utilizing the best development tools are recommended to enhance team effectiveness and maintain developer confidence.
Growing large web applications
- 2. Cezar Hălmăgean So#ware Development Consultant I help Ruby on Rails developers ship high-quality code faster Owner @ Mix & Go SRL mixandgo.com
- 3. The usual suspects @ scale A lot of concurrent users How many users can our site handle? Huge amounts of data How fast can we process data? Responsiveness How much 6me does it take to load a page? Market share dominaJon How fast can we build new features? Employee retenJon How can we make sure people don't leave? PERFORMANCE SPEED
- 4. Market share means $$$
- 6. The problem is complexity
- 7. Complexity symptoms Bugs The number of bugs is significant. Development speed It takes forever to build new features. Micromanagement Management doesn't trust employees. Confidence Developers lack confidence in their work.
- 9. Not sure how I got here...
- 10. The hunt for $$$ Idea "Let's make a social network for ants" Throw some code on the wall and hope it doesn't fall off. Ship it "Mom! Look! I'm going to be rich." Watch it sink And don't tell mom... yet. Repeat and hope for the best.
- 14. Foundation
- 15. So what? Development speed decreases There's increasingly more complexity to consider. Change will be hard Dependencies keep growing. Work becomes stressful Because everything you do is a new bug. Micromanagement starts to show up Because managers won't trust your ability to deliver anymore. Employees burn out, and eventually leave High stress == Lower reten6on
- 16. How to do it right Improve team communicaJon Develop systems that make communica6on easier Start tesJng before it's too late Automated tes6ng is so important. Invest in good design Code design can make a big difference. Use the best tools Editors, compilers, sta6c typing, beMer programming languages. Code review Helps junior learn, and keep developers aligned.
- 18. User story Feature: User registration As a first time visitor I want to be able to create an account So that I can access the members area Scenario: I create an account Given I am on the homepage And I click on the registration link When I fill in and submit the registration form Then I should see a registration confirmation message
- 19. Automated tests bit.ly/test_first Feature Tests vs. Integration Tests vs. Unit Tests
- 20. Code design
- 21. Tools
- 22. Tools
- 23. Code reviews
- 25. Cezar Hălmăgean @ c halm age an m ixandgo. com Growing Large Web Applications