Object Activation

Server-activated Objects (SAOs)

Lifetime controlled by CLR on the server, and it's stateless objects.

An SAO can be a single-call object or singleton object.

Client Activated Objects (CAOs)

Lifetime mainly controlled by CLR on client, it's stateful objects

Client/Server Communication Channels

The TCP Channel

Fast, most used in LAN, point to point connection

The HTTP Channel

A little slower, most used in WAN, able to pass proxy