Synopsis
In recent years, the concept of 'business objects' has taken hold in the developer community. Basically, these are the processes that deal with some input data and mediate the appropriate business response. Whether this be a stock-withdrawal from a warehouse supply system, an invoice-sender or whatever, writing the code in such a way that it can be used by an entire organization to maintain coherent information on the business is worthwhile. Visual Basic 6 classes can be exposed as ActiveX objects. This allows the developer to use DCOM to enable objects to communicate between machines. Also, objects can be both called and scripted by Active Server Pages and controlled by Microsoft Transaction Server, so that they are accessible through a web browser. Tied to these new server-side technologies from Microsoft, we can see that Visual Basic is a great tool to implement such a system. The book does this for a variety of client-server designs, to show how to design and deploy business objects. This book is aimed at experienced application developers, who have developed applications in Windows using Visual Basic. It will also appeal to intermediate-level programmers because it presents components and techniques that can easily be integrated into their applications.

From the Publisher
This book is aimed at experienced application developers, who have developed applications in Windows using Visual Basic. It will also appeal to intermediate-level programmers because it presents components and techniques that can easily be integrated into their applications.

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Customer Reviews

26 Reviews

5 star:		(16)
4 star:		(3)
3 star:		(0)
2 star:		(4)
1 star:		(3)

Average Customer Review

4.0 out of 5 stars (26 customer reviews)

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2 of 2 people found the following review helpful:

5.0 out of 5 stars Don't leave home without it!, 6 Aug 1999

By A Customer

Another fantastic Wrox book! I have already used Rocky's design principles in a 4 tier Web application and they are already reaping the dividends (literally!). Rocky doesn't just copy out examples from the MSDN - he actually explains in great detail HOW to design a working application outlining the pitfalls on the way. Rocky guides the reader through the basic principles all the way to a full blown 3/4 tier working development using different front ends, while explaining the limitations and power of Microsoft's DNA paradigm. You will learn and understand the principles faster by actually going through the examples and using the VB debugger rather than leaving it for bedtime reading. It takes a little longer to develop an app using components but the rewards come in the reduced maintenance costs, multiple front ends without re-code and the scalability of your solutions. No more maintenance budget gobbling code monsters!!

Not really for the beginner programmer though - too much melon twisting!

Thanks Rocky!

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2 of 2 people found the following review helpful:

5.0 out of 5 stars The Professionals Guide to n-Tier Distributed Apps in VB, 10 Jun 1999

By A Customer

If you are a client-server developer using VB and you are able to invest up-front time in writing maintainable 2 or 3 tier applications then you must have this book. The GUI level stuff is really only in the book to show that properly constructed business objects expose functionality that can be harnessed by any front end (MDI, Excel, ASP etc). This is about design, organization and persistence beyond the GUI; it about COM, DCOM and the efficient use of of network bandwith. VB5 or 6 is the tool it uses and it takes a knowledge of this for granted; the value is in the concepts illustrated by the application that is produced by the reader as he/she reads.

My development department has 4 staff and 5 copies of this book! Warning - needs VB 5 or 6 Enterprise Edition, MS SQL Server 6.5+ and MS Transaction Server for full value.

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5.0 out of 5 stars Excellent book, 20 May 2002

By A Customer

This is an excellent book that teaches the reader how to create 3 Tier object orientated databases, the explanation are very clear for any experienced Visual Basic programmer to understand. The only downside to this book is that is uses AddNew methods of Recordset object to add new records into the database, it would had been better to you SQL for that operation but apart from that its a very good but. I wouldn't recommend this book to beginners.

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Most Recent Customer Reviews

5.0 out of 5 stars The Best VB Business Object book I've read so far!
This book took me from being an average VB programmer to one that could develop n-tier applications using business objects. Read more

Published on 22 Sep 2000

5.0 out of 5 stars An excellent OO book
This is a very readable book on OO programming. Rocky uses a video shop example (to which almost everyone can relate) to explain how to build versitile and robust business... Read more

Published on 11 Mar 2000 by stephenc@retemail.es

1.0 out of 5 stars Will excite you at first, but really it's a blind alley.
I loved this book when I first read it. I just couldn't put it down! And I eagerly started to put it into practice in my job. Read more

Published on 1 Oct 1999

2.0 out of 5 stars OK if you embrace the authors design pattern
The book has not changed much from the previous version, and it is truly let down by this. There is scant information on ADO and the new features of VB6. Read more

Published on 31 Aug 1999

5.0 out of 5 stars The best book on object-oriented programming I've read.
I learned Java and C++ from books without really grasping how I could apply object-oriented concepts to a real project. Read more

Published on 13 Jul 1999

2.0 out of 5 stars Not what you would be led to expect...
After reading Beginning VB Objects by Peter Wright (a wonderful book that will refresh you on core VB and object-oriented design), I decided to look at Visual Basic 6. Read more

Published on 8 Jul 1999

5.0 out of 5 stars Excellent
A very readable text on OO based design in VB. This is must read for anyone wanting to move from procedural/event driven models to more modular ways of constructing VB apps.

Published on 30 Jun 1999

5.0 out of 5 stars Excellent!
Superb discussion of OO concepts, and how to make the best use of them in VB, even when VB falls short (i.e., overcoming the class inheritance limitation in VB).

Published on 11 Jun 1999

5.0 out of 5 stars This is the book.
I don't already have the VB 5 version and I thought that for a working professional like myself, it is about time someone wrote a book that covers what this one does. Read more

Published on 7 Jun 1999

2.0 out of 5 stars It's the same as the VB5 version.
Why didn't he metion anything about ADO recordset marshaling. Why he use the same technique as VB5. His previous book was excelent I think he should put more effort to use the... Read more

Published on 6 Jun 1999

› See all 26 customer reviews...

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