Visual Basic 6 Business Objects

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,or an invoice-sender, writing the code in a such way that it can be used by an entire organization to maintain coherent business information 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 demonstrates this with 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.

This is STILL the only book dedicated to Business Objects with Visual Basic, the hottest topic for developers.

Summary of Contents

• Introduction
• Introducing Business Objects
• Application Architecture with Business Objects
• Business Object Analysis
• Designing Business Objects
• Implementing Business Objects using Visual Basic 6
• Implementing Business Objects Part 2 - Parent and Child Objects
• Visual Basic Forms as a User Interface
• Implementing Single-Tier or Two-Tier Data Access
• Microsoft Office as an Interface
• Data-Centric Business Objects
• Distributing Objects using DCOM
• Running Server Components in MTS
• An Active Server Pages Interface
• An IIS Application Interface
• A DHTML Application Interface
• Conclusion
• Appendix A: Building Objects and Components with Visual Basic
• Appendix B: Unified Modelling Language
• Appendix C: Additional Code