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The Component Object Model (COM) is a software architecture that allows applications to be built from binary software components. COM is the underlying architecture that forms the foundation for higher-level software services, like those provided by OLE. OLE services span various aspects of commonly needed system functionality, including compound documents, custom controls, interapplication scripting, data transfer, and other software interactions." (Microsoft) 
"ActiveX controls are among the many types of components that use COM technologies to provide interoperability with other types of COM components and services. ActiveX controls are the third version of OLE controls (OCX), providing a number of enhancements specifically designed to facilitate distribution of components over high-latency networks and to provide integration of controls into Web browsers." (Microsoft) 

"The Distributed Component Object Model (DCOM) is a protocol that enables software components to communicate directly over a network in a reliable, secure, and efficient manner. Previously called "Network OLE," DCOM is designed for use across multiple network transports, including Internet protocols such as HTTP." (Microsoft) 
"What, exactly, is COM+? COM+ is many things, but the basic answer is quite simple. COM+ is the merging of the COM and MTS programming models with the addition of several new features. COM was created long ago as a workstation-level component technology; with the release of Distributed COM (DCOM) in Windows NT 4.0, the technology was expanded to support distributed applications via remote component instantiation and method invocations. MTS followed. It was designed to provide server-side component services and to fix some of DCOM's deficiencies, e.g., how it handles security issues, and the complete lack of a component management and configuration environment. COM+ now comes along to unify COM, DCOM, and MTS into a coherent, enterprise-worthy component technology." (Visual C++ Developers Journal) 

"Microsoft Transaction Server (MTS) combines the features of a TP monitor and an object request broker into an easy-to-use package. Developers use MTS to deploy scalable server applications built from ActiveX components, focusing on solving business problems instead of on the programming application infrastructure. MTS delivers the "plumbing" - including transactions, scalability services, connection management, and point-and-click administration - providing developers with the easiest way to build and deploy scalable server applications for business and the Internet." (Microsoft) 

"Message Queuing (MSMQ), part of Windows NT Server, is communications technology that enables applications on different systems to communicate with each other, even if systems and networks occasionally fail. MSMQ does this by enabling applications to communicate with each other through messages. MSMQ guarantees delivery of messages even despite network and application failures." (Microsoft)


Central Sites:
  • COM (Microsoft) 
  • CORBA (OMG) 
  • DCE (OSF) 
  • Enterprise JavaBeans (Sun Microsystems) 
  • Java Beans (Sun Microsystems) 
  • Object Technology and the Web (W3C) ) 
  • Tutorials
  • Distributed Software Systems Development (Douglas C. Schmidt) 
  • Tutorials on Distributed Objects (Expersoft)
  • FAQs
  • CBD Questions (Alan W. Brown) 
  • comp.client-server FAQ (Lloyd Taylor) 
  • FAQ about dist-obj (Adam Rifkin) 
  • OAG Frequently (OAG) 
  • OSF DCE FAQ - Distributed Computing Environment (Jon Mauney)
  • Glossaries
  • Component-Speak: A Glossary (CIO Magazine) 
  • Componentware Glossary (Object Services and Consulting) 
  • Related Sites:
  •  CBD Central (Alan Brown) 
  • (Alan Brown) 
  • CBD-HQ Home Page (Castek Software Factory) 
  • Common Enterprise Integration Framework CEIF (Science Applications International) 
  • Component Based Development and Integration Forum (CBDi Forum) [Updated/Week 04] 
  • ComponentTalk (Riverton Software) 
  • Component Technology Homepage (OdaTeam) 
  • COTS-Based Systems (CBS) Initiative (Carnegie Mellon University) 
  • Distributed Computing (Cutter Consortium) 
  • Enterprise Distributed Object Computing Pages (DSTC) 
  • Enterprise Zone (DevX) 
  • OODT - OO Data Technology (JPL & NASA) [New/Week 03] 
  • Open Distributed Computing (MCI Systemhouse) 
  • SoftwareCompositionWiki (University of Berne) 
  • The Product Line Practice (PLP) Initiative (SEI) 
  • Web Cornucopia (Gopalan Suresh Raj) 
  • XML-RPC Home Page (UserLand Software) 
  • Component-based Development 
  • Components 
  • COTS / Commercial Off-The-Shelf 
  • Distributed Objects 
  • Further interesting links to Intro:
  • A Blueprint for Component-Based Applications (Compuware) 
  • A Detailed Comparison of CORBA, DCOM and Java/RMI (Gopalan Suresh Raj) 
  • Components and Objects Together (Software Development magazine) 
  • Component Software - A Market on the Verge of Success (Oberon microsystems) 
  • Distributed Computing Overview (QUOIN) 
  • Part 1: RMI, CORBA and DCOM 
  • Part 2: The Java-RMI Solution  
  • Part 3: The Java-CORBA solution 
  • Part 4: The DCOM solution 
  • Distributed Objects for Business (Peter Fingar & Jim Stikeleather) 
  • Making Sense of Distributed Objects (Chappell and Associates) 
  • Software Construction - Industry Trends (CBDi Forum Journal) 
  • The Component Edge -- An Industrywide Move To Component-Based Development Holds The Promise Of Massive Productivity Gains (CMP Media) 
  • The Significance of Components (Bertrand Meyer) 
  • Why Use Distributed Computing (Rob Appelbaum et al.) 
  • Why use Distributed Objects? (Rob Appelbaum et al.) 
  • Special Articles
  •  General Issues 
  • DCE (Distributed Computing Environment) 
  • e-Commerce 
  • Bibliographies
  • Books
  • Magazines
  • Organizations
  • Projects