Full Form of DRY

What is DRY?

DRY, or Don't Repeat Yourself, is a fundamental principle in software development that advocates reducing repetition of information or code. Originating from the book "The Pragmatic Programmer" by Andrew Hunt and David Thomas, it states that every piece of knowledge should have a single, unambiguous, authoritative representation within a system. In the Indian tech industry, DRY is widely taught in computer science curricula and practiced in software engineering roles across startups, IT services firms like Infosys and TCS, and product companies. It is used during code reviews, refactoring, and design discussions to improve maintainability, reduce bugs, and save development time. For example, instead of writing similar code in multiple places, developers abstract common logic into functions or modules. DRY is particularly relevant for students preparing for campus placements and coding interviews, as it demonstrates clean code practices. While the principle originates from programming, it also applies to documentation, database schema design, and business processes. Over-applying DRY can lead to premature abstraction, so it is balanced with other principles like KISS (Keep It Simple, Stupid). Overall, DRY is a cornerstone of efficient, scalable software engineering in India's growing tech ecosystem.

DRY का फुल फॉर्म

Example

During the code review at a Bengaluru startup, the senior engineer reminded the team to follow the DRY principle before merging the pull request.

DRY — frequently asked questions