Any data element should have an obvious and clear

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For example, you are creating a website. One side of the website is its software part or backend. It consists of many components: interaction with the server, work with data. Each component is divided into smaller fragments, and those, in turn, into small sections of code. The element that can no longer be divided into parts will be the basis of the entire system. This is an algorithm - a fragment that is responsible for one specific function.

The DRY rule states that each algorithm should only appear once in the code representation in the project. This way, the programmer can manage the complexity of the system and prevent development problems.

Three Important Principles of Software Development
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4 Reasons to Follow DRY
It's easy to make adjustments to a project - one change won't affect the entire work.
High-quality and simple testing.
Development takes less time and effort.
The quality of the code base is higher and italy email list maintainability is better.
KISS — Keep it simple or keep it simple stupid
Many remember Einstein's words: "Everything should be made as simple as possible, but not simpler." His scientific career has proven that this rule works in 99% of cases.

In the 19th century, physicists were looking for answers to questions like: How do magnetic fields and gravity work? What is time? Scientists developed a theory of ether, a substance that influences all forces in the galaxy. They came up with a term, but did not give it a clear definition. Years passed, but no one got to the heart of the matter.

And only in the 20th century Einstein suggested abandoning this theory, forgetting about calculations and accepting time as relative. This solution was the simplest - and it also turned out to be the most correct!