[6] RECENT CHANGES
(Part of the CORBA FAQ, Copyright © 1996)

[6.1] WHAT IS THE CHAIN OF RECENTLY UPDATED FAQS?

The hyper-linked chain of and FAQs is a big help if you want to see what’s changed since the last time you read the CORBA FAQ.

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[6.2] WHAT UPDATES WERE MADE TO THE CORBA FAQ FOR THE 1997-07 (JUL 1997) RELEASE?

[Recently created (7/1997). Click here to go to the next FAQ in the “chain” of recent changes]

New FAQs:

• [6.2] What updates were made to the CORBA FAQ for the 1997-07 (Jul 1997) release?
• [22.1] What is a Factory?
• [22.2] What are some typical types of factories?
• [22.3] Does the CORBA specification define any specific capabilities for a factory object?
• [23.1] What is a distributed reference counting architecture?
• [23.2] Why would an application implement a distributed reference counting architecture?
• [23.3] Does CORBA support distributed reference counting architectures?
• [23.4] What problems might be associated with a distributed reference counting architecture?
• [23.5] Is there an alternative to distributed reference counting architectures?
• [30.1] What is the purpose of IDL?
• [30.2] Do I program in IDL?
• [31.1] How does a CORBA Object provide its services?
• [31.2] How are the skeleton and implementation object combined?
• [43.1] What is the purpose of the COS Lifecycle Service?
• [44.1] What is the purpose of the COS Object Transaction Service?
• [45.1] What is the purpose of the COS Trader Service?

Changed FAQs:

• [1.4] About Mike Girou
  (supplied bio info finally)
• [1.9] What the Intended Audience Looks Like
  (rewrote the last paragraph more modestly)
• [1.10] “Morality” in addition to just “Legality”
  (rewrote the last paragraph more modestly)
• [9.2] Are all Distributed Objects CORBA Objects?
  (added first two paragraphs and put break between other paras.)
• [9.3] Why should I develop Applications with Distributed Objects?
  (added last point on list)
• [11.1] How can CORBA enable Client/Server Communication?
  (fixed bad grammar/spelling in fifth sentence)
• [11.2] Do any Client/Server Limitations exist with CORBA?
  (added first paragraph)
• [12.1] I use Microsoft products; Why should I use CORBA and not DCOM?
  (rewrote answer totally.)
• [12.2] Must I choose between DCOM and CORBA?
  (added first sentence)
• [15.1] Can CORBA Objects be accessed by Web Based Applications?
  (added period at end of first sentence)
• [16.1] Can CORBA Allow Servers to cause Client Side Events or Notifications?
  (rewrote last sentence for clarity)
• [17.1] Does CORBA support functionality other than Request/Response?
  (added first paragraph and spelled lifecycle correctly)
• [17.2] Why would I use the CORBA Name Service?
  (added first paragraph)
• [17.3] Why would I use the CORBA Lifecycle Service?
  (spelled lifecycle correctly, added first paragraph)
• [17.4] Why would I use the CORBA Event Service?
  (added first paragraph)
• [19.1] Why would Applications require Asynchronous Communications?
  (added first paragraph)
• [19.2] Does CORBA support Asynchronous Communication?
  (added first sentence)
• [19.3] Are Application Threading and Asynchronous Communication related?
  (added first paragraph)
• [19.4] Are there Important Forms of Asynchronous Communication that Aren’t Supported Directly by CORBA?
  (added first paragraph)
• [20.1] Does CORBA define High Level Application Architectures?
  (added first paragraph)
• [20.2] Do Common Application Architectures Exist?
  (rewrote first paragraph for clarity)
• [24.1] Can CORBA Applications be Tuned for Better Performance?
  (added first paragraph)
• [24.2] Do Different CORBA Implementations perform at Significantly Different Levels?
  (added first paragraph)
• [38.1] What is the BOA?
  (spelled adapter properly)
• [38.2] What are the Four BOA Activation Policies for a CORBA Server?
  (spelled adapter properly)
• [38.3] Are there any other activation policies for CORBA objects?
  (spelled adapter properly)
• [40.3] Can an Application refer to Objects implemented with Multiple CORBA Products?
  (added first sentence)

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[6.3] WHAT UPDATES WERE MADE TO THE CORBA FAQ FOR THE 1997-02 (FEB 1997) RELEASE?

[Recently created (2/1997). Click here to go to the next FAQ in the “chain” of recent changes]

New FAQs:

• [6.3] What updates were made to the CORBA FAQ for the 1997-02 (Feb 1997) release?

Changed FAQs:

• [1.7] Copying Permissions
  (clarified)

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[6.4] WHAT UPDATES WERE MADE TO THE CORBA FAQ FOR THE 1997-01 (JAN 1997) RELEASE?

New FAQs:

• [6.4] What updates were made to the CORBA FAQ for the 1997-01 (Jan 1997) release?
• [7.1] How can I find out about general netiquette so I don’t embarrass myself?
• [7.2] What does IMHO mean? (or IMO, IMNSHO, FWIW, OTOH, etc.)?
• [7.3] How do I get comp.object.corba to do my homework problem for me?
• [7.4] What do I do if someone else posts a question that’s already in the FAQ?
• [7.5] What makes a good “Subject:” line?
• [7.6] How do I post a question about code that doesn’t work correctly?
• [7.7] Which newsgroup should I post my questions?
• [7.8] How do I get the FAQs for a particular newsgroup?
• [7.9] In addition to these FAQs, what other useful URLs might I be interested in?
• [30.3] Is IDL a Specification Language, an Implementation Language, or Both?
• [30.4] Does my implementation need to use Inheritance just because my IDL intrerface uses Inheritance?
• [30.5] How do I express Aggregation in IDL?

Changed FAQs:

• [21.7] Who creates Object References?
  (rewrote)
• [41.3] What if I Do Not Know the Name of the Object?
  (fixed a typo in the spelling of “BindingIterator”)

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[6.5] WHAT UPDATES WERE MADE TO THE CORBA FAQ FOR THE 1996-12 (DEC 1996) RELEASE?

New FAQs:

• [1.14] How can I get a Copy of all the “plaintext” files of the CORBA FAQ so I can read them Off-Line?
• [6.5] What updates were made to the CORBA FAQ for the 1996-12 (Dec 1996) release?

Changed FAQs:

• [1.13] How can I get a Copy of all the HTML files of the CORBA FAQ so I can read them Off-Line?
  (rewrote and added a one-click feature to get .zip, .tar.Z or .tar.gz format)

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[6.6] WHAT UPDATES WERE MADE TO THE CORBA FAQ FOR THE 1996-11 (NOV 1996) RELEASE?

New FAQs:

• [6.6] What updates were made to the CORBA FAQ for the 1996-11 (Nov 1996) release?

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[6.7] WHAT UPDATES WERE MADE TO THE CORBA FAQ FOR THE 1996-10 (OCT 1996) RELEASE?

New FAQs:

• [1.15] What URLs are there for getting the CORBA FAQ?
• [6.7] What updates were made to the CORBA FAQ for the 1996-10 (Oct 1996) release?
• [8.1] Can Distributed Computing Enhance my Performance?
• [8.2] How is a Distributed Database related to Distributed Computing?
• [8.3] Can Distributed Computing solve Business Problems?
• [9.1] What is a Distributed Object?
• [9.2] Are all Distributed Objects CORBA Objects?
• [9.3] Why should I develop Applications with Distributed Objects?
• [9.4] How are Distributed Objects actually implemented?
• [9.5] Should all my Objects be Distributed?
• [10.1] What is the Basic Functionality provided by CORBA?
• [10.2] What Advantages does CORBA provide?
• [10.3] What other types of Distributed Systems does CORBA compete with?
• [11.1] How can CORBA enable Client/Server Communication?
• [11.2] Do any Client/Server Limitations exist with CORBA?
• [12.1] I use Microsoft products; Why should I use CORBA and not DCOM?
• [12.2] Must I choose between DCOM and CORBA?
• [12.3] Is CORBA more Mature than DCOM?
• [12.4] What Advantages does DCOM have over CORBA?
• [15.1] Can CORBA Objects be accessed by Web Based Applications?
• [16.1] Can CORBA Allow Servers to cause Client Side Events or Notifications?
• [17.1] Does CORBA support functionality other than Request/Response?
• [17.2] Why would I use the CORBA Name Service?
• [17.3] Why would I use the CORBA Lifecycle Service?
• [17.4] Why would I use the CORBA Event Service?
• [19.1] Why would Applications require Asynchronous Communications?
• [19.2] Does CORBA support Asynchronous Communication?
• [19.3] Are Application Threading and Asynchronous Communication related?
• [19.4] Are there Important Forms of Asynchronous Communication that Aren’t Supported Directly by CORBA?
• [20.1] Does CORBA define High Level Application Architectures?
• [20.2] Do Common Application Architectures Exist?
• [24.1] Can CORBA Applications be Tuned for Better Performance?
• [24.2] Do Different CORBA Implementations perform at Significantly Different Levels?
• [24.3] What Types of Performance should I be Concerned With?
• [28.1] How are CORBA Objects Defined?
• [28.2] What Capabilities do CORBA Objects Possess?
• [32.1] How are object references obtained by applications?
• [38.1] What is the BOA?
• [38.2] What are the Four BOA Activation Policies for a CORBA Server?
• [38.3] Are there any other activation policies for CORBA objects?
• [40.1] What is an IOR?
• [40.2] Are IORs obtained in the Same Manner as Object References?
• [40.3] Can an Application refer to Objects implemented with Multiple CORBA Products?
• [40.4] Can CORBA Vendors Simplify Interoperability and the Process of Obtaining Other Vendor’s Object References?
• [41.1] What are the IDL Interfaces defined within the COSNaming Module?
• [41.2] How do I use a NameContext?
• [41.3] What if I Do Not Know the Name of the Object?

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[6.8] WHAT UPDATES WERE MADE TO THE CORBA FAQ FOR THE 1996-09 (SEP 1996) RELEASE?

New FAQs:

• [6.8] What updates were made to the CORBA FAQ for the 1996-09 (Sep 1996) release?
• [21.1] What is an Object Reference?
• [21.2] Why a Handle rather than a “Hard” Address?
• [21.3] For How Long is an Object Reference Valid?
• [21.4] What if I want a Persistent Reference?
• [21.5] I want to be an expert. How do I Stringify an Object Reference?
• [21.6] What is the Format of an Object Reference?
• [21.7] Who creates Object References?
• [21.8] How do I Compare References?
• [21.9] Great. What other Surprises are there with is_equivalent()?
• [21.10] Is that All of the Bad News about is_equivalent()?
• [21.11] So why don’t we just Compare Stringified References?
• [21.12] This sounds Too Complicated. Should I just learn DCOM instead?
• [21.13] Why do you say, “Most people never need this kind of knowledge”?
• [21.14] Then why did you just Drag us through the Mud?
• [21.15] How are Object References declared in C?
• [21.16] How are Object References handled in C++?
• [21.17] When do I use _var instead of _ptr?
• [21.18] What if I want to invoke Methods on an Object in another ORB?
• [21.19] Does an IOR have a Defined Format and, if so, Why?
• [21.20] What is the Format of an IOR?
• [21.21] What is a Tag?
• [21.22] What is a Profile?
• [21.23] What is the Difference between the two Types of Profiles?
• [21.24] Why did you say that the Specific Details Probably Shouldn’t Matter?
• [21.25] But how does my program use an IOR?
• [21.26] This Expert Stuff isn’t so tough. What about Stringifying an IOR?
• [26.1] Should I use Underscores (“_”) in the Names of Interfaces and/or Methods?

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[6.9] WHAT UPDATES WERE MADE TO THE CORBA FAQ FOR THE 1996-08 (AUG 1996) RELEASE?

New FAQs:

• [0] The CORBA FAQ — Frequently Asked Questions
• [1.1] The Authors (Alphabetically)
• [1.2] About Rob Appelbaum
• [1.3] About Marshall Cline
• [1.4] About Mike Girou
• [1.5] Copyright Notice
• [1.6] No Warranty
• [1.7] Copying Permissions
• [1.8] Trademarks
• [1.9] What the Intended Audience Looks Like
• [1.10] “Morality” in addition to just “Legality”
• [1.11] Tutorial
• [1.12] Four Different Ways to Navigate the CORBA FAQ
• [1.13] How can I get a Copy of all the HTML files of the CORBA FAQ so I can read them Off-Line?
• [2] Table of Contents — Overview
• [3] Table of Contents — Exhaustive
• [4] Alphabetical List of All FAQs
• [5] Subject Index
• [6.1] What is the chain of recently updated FAQs?
• [6.9] What updates were made to the CORBA FAQ for the 1996-08 (Aug 1996) release?

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