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Expert C# 2005 Business Objects (Expert's Voice in .NET) 2nd ed. 2006. Corr. 2nd printing 2006 Edition

3.4 out of 5 stars 18 customer reviews
ISBN-13: 978-1590596326
ISBN-10: 1590596323
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Editorial Reviews

About the Author

Rockford Lhotka is the author of numerous books, including Expert One-on-One Visual Basic .NET and Expert C# Business Objects. He is a Microsoft Software Legend, regional director, "Most Valuable Professional", and INETA speaker. Rockford speaks at many conferences and user groups around the world and is a columnist for MSDN Online. Rockford is the principal technology evangelist for Magenic Technologies, one of the nation's premiere Microsoft Gold Certified Partners dedicated to solving today's most challenging business problems using 100% Microsoft tools and technology.
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Product Details

  • Series: Expert's Voice in .NET
  • Paperback: 696 pages
  • Publisher: Apress; 2nd ed. 2006. Corr. 2nd printing 2006 edition (March 20, 2006)
  • Language: English
  • ISBN-10: 1590596323
  • ISBN-13: 978-1590596326
  • Product Dimensions: 7.3 x 1.6 x 9.6 inches
  • Shipping Weight: 2.2 pounds (View shipping rates and policies)
  • Average Customer Review: 3.4 out of 5 stars  See all reviews (18 customer reviews)
  • Amazon Best Sellers Rank: #2,948,403 in Books (See Top 100 in Books)

Customer Reviews

Top Customer Reviews

By Joseph Reddy on July 19, 2006
Format: Paperback
Truly, I think this book is an introduction to Mr. Lhotka's CSLA Framework, and not a text for designing expert business objects. Discovering and designing business objects for an application are tough exercises that are not covered in much detail here.

There are applications that can benefit from the type of design suggested in the book and the CSLA framework, but in the realm of business applications I think they are few and far between. If you want to build an application that essentially pulls records from a database, lets the user view or change that data and return it to the database, then this book offers a very straightforward way to build these types of applications. However it is easy for a developer to believe that this type of design can be applied to every application they face. (When you have a hammer, everything looks like a nail.) Often, I think the result is an application highly coupled to the implementation of storage, with quasi-business objects that have complexity above and beyond their true business complexity, no core system that can be cleanly modeled and understood by non-technical team members, and a user interface that is often no more than just a front-end to a database. Again, I think the CSLA framework promotes this kind of design; it does not enforce it or stop you from building a more solid design.

The book is well written and is not too difficult to follow the concepts offered. This is why I give it 3 stars and not less. However I have to warn the newer developer who is looking for guidance in building OO designed applications in an effort to manage the difficulties of the more complex business applications they are starting to deal with. I don't think this book addresses this need. I would suggest Object-Oriented Design Heuristics by Arthur J.
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Format: Paperback
This book has a very good discussion of frameworks and includes the details of the CSLA (Component Scalable Logical Architecture) framework. However, I don't believe the book is worthwhile for the discussion of frameworks alone. If you're required to use CSLA, then this is the book for you.

I give the book three stars because its contents can't be separated from the design of CSLA. The problem with CSLA is the layers. The use of "fat", fully encapsulated business objects has fallen out of favor recently and is not the best architecture for enterprise applications. Despite what the author says, I don't believe CSLA is truly a layered architecture, either.

The book lacks a discussion of when CSLA is a good choice and when another architecture is better. Choosing to use CSLA pre-determines your architecture (the "A" stands for "Architecture", after all). You should always choose your architecture based on your requirements and never select an architecture in advance.

That said, CSLA can be a good architecture for smaller projects. New developers often have issues understanding true multi-tiered architectures. Because CSLA uses an encapsulated architecture that's similar to the OOP training they had in school, those developers may find CSLA a good choice because it's easier for them to understand.
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Format: Paperback
I have tracked CSLA and used the architecture since the Early VB6 days and I unfortunately have to admit that I have moved from being a follower to becomming increasingly dissapointed over the years. CSLA has in my opinion just failed to keep up with the newer concepts of Domain Modelling etc from Eric Evans it has also failed to in incorporating concepts and patterns from Martin Fowler et al. The architecture does not solve or present any real solution for the Object Relational mapping issues etc etc etc. The problem in my opininion stem from the fact that the architecture has remained rooted in the principles that worked and were needed in VB6. If you and your organisation are already committed to CSLA then keep buying the book and keep up with the minor changes that happen to the architecture with each iteration. The second problem for me is that the CSLA is not test driven (although there are some tests that appear to have been retrofitted). The Framework itself is fairly limited with most of the logic being in the generated code. This means that it is extremely difficult to extend or enhance since you need to start fiddling with templates etc. We all know that generated code is very hard to test so doing this makes things very fragile and frustrating.

If you are looking learn Domain Concepts and to utilise these in production projects then I would suggest that you go for one of the Open Source Enterprise Application Frameworks that are available. These are more feature rich and more alive in terms of contribution than CSLA.

My suggestions would be
1)NHibernate - this is an open source ORM but has many generators e.g. CodeSmith that allow you to generate the Business Object Layer.
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Format: Paperback
I found this book to be a great book to learn the ins and outs of designing and implementing a Business Framework, and how to implement real world OOP. I have had a lot of trouble in the past reading all the examples in books about OOP in general. They would start off with the analogy of a car, an airplane, a person, etc. a lot of detail would go into designing that object. All well and good but how do I really break down these objects so they can be used in a business model and extend that same object. Well this book has moved me a long way down the road in that regard. I have had the privilege of seeing Rocky at a training event. This book is not a hypothetical to him but real world knowledge put into practice.
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