Object Design or The Complete Idiots Guide to Starting an Ebay Business

Object Design: Roles, Responsibilities, and Collaborations

Author: Rebecca Wirfs Brock

If you create software using object-oriented languages and tools, then Responsibility-Driven Design has likely influenced your work. For over ten years Responsibility-Driven Design methodology has been the standard bearer of the behavioral approach to designing object-oriented software. Object Design: Roles, Responsibilities, and Collaborations focuses on the practice of designing objects as integral members of a community where each object has specific roles and responsibilities. The authors present the latest practices and techniques of Responsibility-Driven Design and show how you can apply them as you develop modern object-based applications.

Working within this conceptual framework, Rebecca Wirfs-Brock and Alan McKean present how user requirements, system architecture, and design patterns all contribute to the design of an effective object model. They introduce a rich vocabulary that designers can use to discuss aspects of their designs, discuss design trade-offs, and offer practical guidelines for enhancing the reliability and flexibility of applications. In addition, case studies and real-world examples demonstrate how the principles and techniques of Responsibility-Driven Design apply to real-world software designs.

You'll find coverage of such topics as:

Strategies for selecting and rejecting candidate objects in an emerging design model

Object role stereotypes and how to identify objects' behaviors

How to characterize objects using role stereotypes

Allocating responsibilities to appropriate objects

Developing a collaboration model

Strategies for designing applicationcontrol centers

Documenting and describing a design, focusing on use cases, design conversations, and annotations

Strategies for enhancing reliability, including handling exceptions and recovering from errors

How to characterize software variations and design to support them for greater flexibility

How to categorize and treat various kinds of design problems

As all experienced designers know, software design is part art and inspiration and part consistent effort and solid technique. Object Design: Roles, Responsibilities, and Collaborations will help all software designers--from students to seasoned professionals--develop both the concrete reasoning skills and the design expertise necessary to produce responsible software designs.

0201379430B08292002

Table of Contents:

	Foreword
	Foreword
	Preface
Ch. 1	Design Concepts	1
Ch. 2	Responsibility-Driven Design	39
Ch. 3	Finding Objects	77
Ch. 4	Responsibilities	109
Ch. 5	Collaborations	149
Ch. 6	Control Style	195
Ch. 7	Describing Collaborations	239
Ch. 8	Reliable Collaborations	277
Ch. 9	Flexibility	315
Ch. 10	On Design	355
	Bibliography	375
	Index	381

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The Complete Idiot's Guide to Starting an Ebay Business

Author: Barbara Weltman

It's payday on eBay®!

You may have been making some money on the side with eBay®, but if you've done much business at all, you know that it's not always as easy as it seems. Whether you want to be a full- time seller or make money on the side, this book will guide you step-by-step through creating the eBay® business you've dreamed of. It covers the basics of an eBay® business including record keeping, taxes, legal issues, sourcing, promotion, fraud protection, fulfillment, and other details entrepreneurs need to know. It also helps you determine what to sell, how to price it, and the details of working with services like PayPal.

Author Biography: Barbara Weltman has written over a dozen business books, including J.K. Lasser's Small Business Taxes and CIG to Starting a Home-Based Business. She is Staples.com's Small Business Tax Expert and has appeared as a small business expert on CNN, CNBC, Today, and eBay® Live.