The WMI Schema

Abstract

Strictly speaking, the WMI schema is a logical grouping of classes and instances that constitute a particular managed environment. Thus, the WMI SDK comes, equipped with two schemas: the CIM schema and the Win32 schema. The former includes class and instance definitions for those managed entities that are common to all managed environments regardless of the underlying hardware and OS platform. As you may remember from Chapter 1, the CIM schema essentially covers two layers of CIM model: the core model and the common model. The Win32 schema contains classes and instances specific to Win32 environments; and, in CIM parlance, is said to be an extension model schema.