• Identifying Classes

• Identifying and Comparing Objects

• Managing Reference Counts

• Testing Object Inheritance, Behavior, and Conformance

• Describing Objects

• Sending Messages

• Determining Allocation Zones

• Identifying Proxies

• autorelease

• class

• conformsToProtocol:

• description

• hash

• isEqual:

• isKindOfClass:

• isMemberOfClass:

• isProxy

• performSelector:

• performSelector:withObject:

• performSelector:withObject:withObject:

• release

• respondsToSelector:

• retain

• retainCount

• self

• superclass

• zone