What's inside a management pack?
Now that you have an understanding of the different types of management packs that OpsMgr uses, it's time to take a look under the hood and discuss the contents of a management pack. Depending on what the management pack was authored for, you will find one or more of these elements inside.
Classes (Object types)
Also referred to as object types, classes represent a kind (or type) of object in OpsMgr and every object is basically a single unit of a class that can be monitored. Examples of an object could be a computer, a network device, a logical disk or a power supply. It could also be an Active Directory domain, an application or an installation of SQL.
Each object in OpsMgr has its own class and that object is an instance that shares a common set of properties with other objects that are all part of a particular class.
Think of it like this, you're monitoring the C:\
logical disk on a Windows Server 2012 computer. The logical disk is seen as an object in OpsMgr...