COM Architecture Part 1

1
Chapter 5

• COM Architecture (Part 1)

2
Objectives

• Explain COM
• Discuss Microsoft Transaction Server and the
  services it offers
• Discuss enhancement of services from MTS to COM
• Discuss new services of COM
• Describe Object Communication in MTS and COM

3
Introduction to COM

• Integration of technologies, such as COM/DCOM
  and MTS
• Features like COM Queued Components and COM
  Events
• Backward compatibility

4
Microsoft Transaction Server
5
MTS Services

• Transactions
• Key Points
• MS DTC
• Entities involved

6
Enhanced Services in COM

• Transactions
• Key Points
• Automatic
• Transactions

7
New Services with COM
Queued components
Com Events
COM Load Balancing
8
Queued Components
COM Queued Components help developing
Distributed Component Systems using Asynchronous
Processing.
9
COM Events
COM Events models Loosely Coupled Events
10
COM Load Balancing
CLB gives the ability to dole out COM components
over multiple servers.
11
Object Communication
The combined task of a client sending a request
to a server object and the server object
responding to the client is termed as Object
Communication.
12
Object Communication in MTS
13
Object Communication in COM