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商品描述
Since the dawn of computing, software designers and developers have searched
for ways to describe the systems they worked so hard to create. Flowcharts
enabled the concise documentation of program-flow and algorithms.
Entity-relationship diagrams enabled database designers to convey the structure
underlying the collection of tables and columns that made up a schema. From the
beginning, technologists recognized the descriptive power inherent in visual
representations of a system, yet it wasn't until 1997 that the first attempt to
create a visual language that could be used across all aspects of a system
development project came to fruition. Unified Modeling Language (UML) was born.
UML has taken the software development industry by storm. Widely
supported by development and documentation tools, UML can be used on the one
hand by programmers to record such things as the detailed design of classes in
an object-oriented system and on the other hand by business analysts to give the
broad-brush picture of how a system interacts with users and other systems. UML
has become the lingua franca of software development, and no one in the software
industry can afford to be without knowledge of this powerfully expressive visual
language.
Learning UML introduces UML and places it in
perspective, then leads you through an orderly progress towards mastery of the
language. You'll begin by learning how UML is used to model the structure of a
system. Many key UML concepts, especially that of the general (classes) versus
the specific (objects), are illustrated in the chapter on class and object
diagrams. Next, you'll learn how to use use-case diagrams to model the
functionality of a system. Finally, you'll see how component and deployment
diagrams are used to model the way in which a system is deployed in a physical
environment.
Structural modeling answers the "who" and "what" questions
of systems development. Behavioral modeling addresses the questions of "when,"
"how," and "why." You'll learn how to use sequence and collaboration, to model
the interaction over time between system components, how to use state diagrams
to describe the life cycle of system components, and how to use activity
diagrams to document control-flow and responsibility.
Throughout this
book, author Sinan Si Alhir maintains a clear focus on UML the language and
avoids getting caught up in the cobwebs of methodology. His presentation is
direct and to-the-point. Each chapter ends with a set of exercises that you can
use to test your growing knowledge of UML and its concepts. As you work your way
through the book, you'll find yourself warming up to the simple yet expressive
language that is UML, and using it to communicate effectively and professionally
about all aspects of system design.
Table of Contents
Preface
Part I. Fundamentals
1. Introduction
2. Object-Oriented Modeling
Part II. Structural Modeling
3. Class and Object Diagrams
4. Use-Case Diagrams
5. Component and Deployment Diagrams
Part III. Behavioral Modeling
6. Sequence and Collaboration Diagrams
7. State Diagrams
8. Activity Diagrams
Part IV. Beyond the Unified Modeling Language
9. Extension Mechanisms
10. The Object Constraint Language
Part V. Appendixes
A. References
B. Exercise Solutions
Index