CS4624 Text Chapter 9 - Part for PI Unit

Distributed Object Models

Key Concepts

• Object Linking and Embedding (OLE)
• Document basis
• Multilevel nested embedding
• In-place activation fisual editing
• OLE objects
• Drag-and-drop
• Automation
• Link tracing
• OLE storage issues (compound files)
• Monikers (distributed naming)
• Object conversion
• Distributed System Object Model (DSOM)
  • IBM's System Object Model (SOM)
  • Designed to comply with CORBA
• Common Object Request Broker Architecture (CORBA)
  • Object Management Group (OMG) has developed CORBA
  • An object system = collection of objects isolating clients from servers by an interface; clients send msgs to servers which interpret the msgs and perform service
  • Components: Client, Object Request Broker (ORB), Object Implementation