UML (Unified Modeling Language) is a powerful notational approach to object-oriented analysis, design and implementation. If you understand and can utilize UML, your object-oriented Visual Basic programming becomes much more logical and effective. UML allows you to design, plan and implement great Visual Basic programs. The ease of learning the fundamentals of Visual Basic often misleads VB programmers - there is a common misperception that effective VB programs can be built in an ad-hoc fashion, without thinking through the full ramifications of the programs being created. Object-oriented programming, and UML in particular, empowers VB programmers with a system of thinking, designing and implementing their programs in a more professional, robust manner. UML is a route to successful VB programming. This initiative started with the Wrox book, "Beginning VB5/6 Objects", which introduced the object-oriented methodology itself. Now, VB6 UML takes that initiative a stage further, to more professional design and implemention. Because UML abstracts the design process, it also allows programmers to see some of the abstract patterns that occur when they are programming. This more abstract view, and some of the emergent patterns that become visible, will allow VB programmers to grasp their fundamental programming activities at an important and fundamental level.
VB6 UML Design and Development provides a solid working introduction to design techniques using today's Unified Modeling Language (UML) standard. Written for those with little or no experience in formal design, this digestible text provides all you need to get control of the software development process within Visual Basic.
The book begins with a tour of UML basics such as case, class, activity, and sequence diagrams. It looks at today's iterative software development process and patterns and frameworks for better software reuse. The "framework" offered here uses Microsoft's Distributed iNternet Architecture (DNA) to create a three-tiered application using MTS on the middle tier in a case study for an order entry system.
Starting with requirements analysis, the book provides sample interviews from hypothetical users. This data is then used to construct use case diagrams. Then it's on to interaction, sequence, and collaboration diagrams. The sections on class design here are notably strong (with both the traditional CRC cards and UML class diagrams used to model classes). The later chapters of this book turn to implementing the system on Microsoft's DNA platform using ActiveX Data Objects (ADO) and Remote Data Service (RDS) for database access and Microsoft Transaction Server (MTS) for scalable transactions.
Besides excellent MTS-enabled sample code to get you started on your own applications, perhaps the best feature of VB6 UML Design and Development is its ability to cover formal design and UML without getting lost in opaque software engineering terminology. --Richard Dragan