rule(In Operations Manager, an element in a management pack that defines the events and performance data to collect from computers, and what to do with the information after it is collected. A rule cannot set a health state); ruler(An on-screen scale marked off in inches or other units of measure and used to show line widths, tab settings, paragraph indents, and so on)
check out(To finalize a purchase on a Web site. For example, when customers shop on your Web site, they may select several items and save them in their shopping basket. When they have finished shopping, they click on a checkout link or graphical button that takes them to an online form where they enter their name, billing address, payment type, and shipping information)
