What does 'best practice' mean?

What it means: The most effective, efficient, and commonly accepted way of doing something in a particular field — established through experience, research, or wide adoption.

"Following best practice, we test all code before deployment."
"Industry best practice recommends a three-month notice period."

What makes it "best": Best practices emerge when many people have tried various approaches and converged on what works. They encode accumulated wisdom.

The problem with "best practice": It's often invoked without evidence. "This is best practice" can be used to shut down questions rather than answer them. The genuine test: best practice according to whom, based on what evidence?

• "Standard practice" — what most people do, not necessarily best
• "Good practice" — widely accepted but not the definitive best
• "Industry standard" — the norm in a particular sector

Register: Professional. Common in legal, medical, business, and technical contexts.

Tags: business English, professional standards, workplace, jargon