Integrated development environment. An all-in-one application for software engineering that combines a source code editor, a compiler, a debugger, and other tools in a graphical interface.
In Scrum projects, great tasks are broken into small and self-contained increments. Each of the increments can be released in one sprint. An increment is the sum of all product backlog entries that have been completed during the current sprint and the previous sprints.
The acronym stands for a checklist of criteria that help evaluate and improve requirements that are written as user stories. I(ndependent). N(egotiable). V(aluable). E(stimatable). S(small). T(estable).