Term explained
What is DevOps?
DevOps is a way of working where the people who build software and the people who run it work as one team, using automation to release changes quickly and safely.
In plain English
Software used to be built by developers and then “thrown over the wall” to a separate operations team, who installed it and kept it running. Releases were rare, slow and stressful, and when something broke, each side blamed the other.
DevOps, short for development and operations, joins the two. The same team writes the code, tests it, releases it and looks after it in use. Repetitive steps such as testing and releasing are automated, so small changes can go out many times a day instead of in one big, risky release every few months.
Why it matters
Almost every app and website you use is updated this way. DevOps is why bugs can be fixed within hours and new features appear without long outages. Teams measure it with simple numbers: how often they release, how long a change takes to go live, how often releases fail and how quickly they recover.
An example
A banking app team spots a bug in the morning. A developer fixes it, automated tests check the change, and an automated pipeline releases it to a small group of users first, then to everyone, all before lunch, with a person approving each step.
What to watch out for
DevOps is a way of working, not a tool you can buy. AI is now speeding up parts of it, especially writing code, which puts more pressure on reviews, testing and security. See how AI is changing the way software gets shipped.