Namespace provides a domain (in other words, a container), in which the instances [of a class] are guaranteed to be unique per the KEY qualifier definitions. It is named relative to the CIM_ObjectManager implementation that provides such a domain.
CIM_Namespace - child subclasses in ROOT\CIMV2\storage\iscsitarget
'Enumeration indicating the schema of the Namespace's objects. For example, they may be instances of classes of a specific CIM version or a mapping from another standard, such as SNMP. If 'Other' is selected, the DescriptionOfClassType property MUST be populated.'
'The version of the objects in this namespace. The string representing the version MUST be in the form: M + "." + N + "." + U Where: M - The major version (in numeric form) N - The minor version (in numeric form) U - The update (e.g. errata, patch, ..., in numeric form)'
'CreationClassName indicates the name of the class or the subclass used in the creation of an instance. When used with the other key properties of this class, this property allows all instances of this class and its subclasses to be uniquely identified.'
'Namespace provides a domain (in other words, a container), in which the instances [of a class] are guaranteed to be unique per the KEY qualifier definitions. It is named relative to the CIM_ObjectManager implementation that provides such a domain.'