What does "assumption" mean in programming?
assumption is one of the most common terms in software development. This guide explains what it means, how it is used in practice, and why it matters, with real examples from the developer world.
Definition
A belief taken as true without proof, used as a basis for a decision or design. Assumptions should be made explicit and validated early because incorrect assumptions cause rework. Common in estimation and architecture decisions.
Example
"We assumed users log in once per session, but analytics show many re-authenticate every visit — revisit the design."
Related terms
Ready to practice your English at work?
Lingua-e has interactive exercises built around real developer conversations: standups, code reviews, retrospectives, and more. Practice until it comes naturally.
Try Lingua-e for free