Agile development is now widely accepted and there are more companies and people who have started following this development methodology.
The most wisely used agile process is "Scrum". In scrum work is divided into short cycles called "Sprint". Typically the sprint duration is 2-4 weeks but it can be as short as one week and as long as one month.
The whole scrum is composed of 3 roles, 3 activities and 3 artifacts.
Given below is a scrum cheat sheet which consists of all major terms and short definitions. This sheet can be used as quick refresher or pocket reference.
You can also download pdf version of scrum cheat sheet from below.
Scrum Cheatsheet.pdf (86.14 kb)