Monthly Archives: January 2014

Software Development Models: Waterfall

Waterfall model

medium_8054381402The waterfall model originated in manufacturing and construction where changes are costly and investment in design of the production line is often much less than potential loss if the actual production fails. It is based on idea that planning and design costs are much lower than those used in the actual production.

## Software development life-cycle (SDLC)

The software waterfall model often uses some variation of following phases:

  • Requirements specification (Requirements Analysis) resulting in Requirements Document
  • Software design resulting in Software Design (SD) document
  • Implementation resulting in the actual software
  • Integration
  • Testing (or Validation)
  • Deployment (or Installation)
  • Maintenance
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Scala Tutorial Through Katas: Fizz Buzz (Easy)

A programming kata is an exercise which helps a programmer hone his skills through practice and repetition.

This article is part of the series “Scala Tutorial Through Katas”. Articles are divided into easy, medium and hard. Beginners should start with easy ones and move towards more complicated once they feel more comfortable programming in Scala.

For the complete list of Scala katas and solutions please visit the index page
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