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Rating: 
Summary: good description of middle-tier, not exactly unbiased
Review: For those with a rudimentary understanding of middle-tier architecture, this is a great book. I read it this weekend and will now be able to intelligently discuss the topic. Sessions gives some good reasons for using what he calls COMWare, which consists of COM+, CORBA, and EJB. His guidelines for effective use of COM+ will save us many hours of frustration, I am sure.However, I would not call his assesment of COM+ unbiased as others have here. Just read Part III, "Competition" to verify this. He brings out some valid points, like why entity beans are probably not what you want. But his presentation style is definitely biased. Overall, a very good book. I would highly recommend it to anyone considering one of the three COMWare solutions.
Rating: 
Summary: Excellent overview of Comware.
Review: I disagree with the person who only read the first chapter. In it he describes the difficulties in developing Enterprise Software Applications. He goes on to explain in later chapters how Comware addresses those issues. I found the level of detail to be perfect. Roger starts each chapter with the history of the technology, what real world problems it is trying to address, and then the specific technical details. After reading this book you will be able to answer questions in laymans terms what Com, Dcom, Com+, 3 tier architecture etc, is.
Rating:
Summary: a great book about COM+
Review: I loved the opening chapter on Starbucks. I also enjoy the fact that some here found that stupid and patronizing. This is the charm of the book. Reading chapters is like spending dinner in the company of a top industry veteran who's been through all the battles, switched sides along the way and can tell you not just what, or why, but how things got the way they are, in a very lucid way. It's filled with haymakers like (not an exact quote): the arrival of MTS in 1996 instantly made the COM programming model obsolete. In short, he keeps you reading. And he does know COM+.
Rating:
Summary: a great book about COM+
Review: I loved the opening chapter on Starbucks. I also enjoy the fact that some here found that stupid and patronizing. This is the charm of the book. Reading chapters is like spending dinner in the company of a top industry veteran who's been through all the battles, switched sides along the way and can tell you not just what, or why, but how things got the way they are, in a very lucid way. It's filled with haymakers like (not an exact quote): the arrival of MTS in 1996 instantly made the COM programming model obsolete. In short, he keeps you reading. And he does know COM+.
Rating:
Summary: No reason for battle ?it?s consumer?s preference
Review: If you don't like the book because of favoring MS technologies and COM+, you got to love the Starbucks reference. The book gives you good insight of COM+ (MTS), good evaluation of differences between COM+, CORBA and EJB, not an adequate amount of information on CORBA and EJB details. In short, COM+ will do 98% that EJB does, with much less hassle ... the question is will you (ever) need those 2%?
Rating:
Summary: No reason for battle ¿it¿s consumer¿s preference
Review: If you don't like the book because of favoring MS technologies and COM+, you got to love the Starbucks reference. The book gives you good insight of COM+ (MTS), good evaluation of differences between COM+, CORBA and EJB, not an adequate amount of information on CORBA and EJB details. In short, COM+ will do 98% that EJB does, with much less hassle ... the question is will you (ever) need those 2%?
Rating:
Summary: Sound Brilliant in Any Meeting After This
Review: The total overview that plugs you right in takes place in first four chapters. After that if you are technically ready to delve into threads, processes, stubs, transaction boundaries, asynchronous code, stateless components and more, this will be super intro to middle tier components. Especially good for programmers who assist with software/application specifying (or would like to). This is not a learn by example book. You will have to read another after this. Guaranteed. But your fluency in discussing COMware-type programming will go through the roof.
Rating: 
Summary: Is this the COM+ evangelical meeting room?
Review: This is a very well written and easy to read overview of COM+ and how it compares to EJB and CORBA. The author was in the OMG group as one of the developers of CORBA. He got an invitiation to write on how CORBA compares to Microsoft's version of the same thing, COM+. He accepted and realized that Microsoft has elegantly solved some of the problems that vexed CORBA. He describes Microsoft's solutions and then compares them to EJB and points out how EJB has copied alot of COM+ has done.
Rating: 
Summary: Good for Proj. Managers & M.Sc. (C.I.S.)Thesis Candidates
Review: You know, these two groups of fellas don't need detail code samples to work on, VISIO is ALL other tool they'll need, :-D (plus they probably won't understand a line of code anyway.) But for a Developer who ALREADY knows the background concepts, skip this, start with Wrox's Prof DNA if you still need to work on non- .Net 3-tiers stuffs.
Rating:
Summary: Unbiased? No way. Outrageous? Hell yeah!
Review: You wouldn't think of it by reading the title, but this book is actually quite crazy. I suppose that is the best way to describe it. I've never read a computer book like it. It's both technical (on a system architecture level) and free form (stream of consciousness). There are enough jokes here to make you laugh out loud, and enough bad jokes to make you laugh just the same. And, you get a unique viewpoint on all things COM. Roger Sessions says some on-the-money one-liners throughout the book, but you'll notice alot to disagree with. For example I found his remark that "no one has ever figured out how to make use of inheritance in OOP" way out to lunch. I recommend this book as a refresher companion to all those dreary COM manuals out there. It's also a great political primer. You just know some Javabean fanatic is gonna annoy you someday with his rantings. You'll know how to tell him off after you read this :)
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