Overview

Information systems often fail because their requirements are poorly defined. This book shows IT professionals how to specify more precisely and more effectively what their systems need to do. The key lies in the discovery and application of what are called business rules. A business rule is a compact and simple statement that represents some important aspect of a business. By capturing the rules for your business--the logic that governs its operation--you will gain the ability to create systems fully aligned with your business needs.In this book, Tony Morgan provides a thorough introduction to business rules, as well as a practical framework for integrating them into information systems. He shows you how to identify and express business rules, offers practical strategies for their use, and explains the key elements of logic that underpin their application. Topics covered include: Understanding the role of business rules and models in information systems developmentUsing models to structure and manage business activities, including e-commerceDefining and discovering business rulesControlling business rule qualityFitting business rules into varied technical architecturesImplementing business rules using available technologyWhether you are an analyst, designer, developer, or technical manager, the in-depth information and practical perspective in this valuable resource will guide you in your efforts to build rule-centered information systems that fully support the goals of your organization. 0201743914B03042002

Full Product Details

Author:   Tony Morgan
Publisher:   Pearson Education (US)
Imprint:   Addison Wesley
Dimensions:   Width: 15.90cm , Height: 1.80cm , Length: 23.60cm
Weight:   0.500kg
ISBN:  

9780201743913

ISBN 10:   0201743914
Pages:   384
Publication Date:   28 March 2002
Audience:   College/higher education ,  Tertiary & Higher Education
Format:   Paperback
Publisher's Status:   Out of Print
Availability:   Out of stock  

Table of Contents

List of Figures. Preface. Acknowledgments. I. A NEW APPROACH TO BUSINESS SYSTEMS. 1. The Problem. What This Book is about. Why Should You Care? What is a Business Rule? The Way We Build Software. The Vision. How Could It Be? Some Implications. Is This Really Practical? Moving Forward. Where We Stand. 2. Frameworks, Architectures, and Models. Needful Abstractions. Frameworks. Architectures. Models. Case Study: A Sample Business Architecture. Overview. Business Objects. Business Process Elements. Narratives. Business Events. Actors and Roles. Business Intentions. Organizational Units. Business Rules. What Does a Complete Model Look Like? Model Summary. II. CAPTURING BUSINESS RULES. 3. Defining Business Rules. Rule Statements. Business Rule Characteristics. Business Aspects. What Should a Rule Say? Levels of Expression. OCL. Forming Rule Statements. Pattern Conventions. Rule Patterns. Rule Sets. Static Models Versus Rule Statements. References to Facts. Terms and Rules. Individual Items. References to Multiple Items. Business Parameters. Tips on Rule Construction. Using Facts. Simple Constraints. Quantifications and Qualifications. States and Events. Actors. Dangerous Verbs. Computation. Structure and Consistency. Case Study: Microsoft Outlook. Outlook Rule Structure. Conditions, Exceptions, and Actions. Internals. Logic. Outlook Rule Features. Rule Description Summary. 4. Discovering Business Rules. That Which We Call a Rule. Where Rules Come Rrom. Information Sources. Common Indicators. Finding Rules. Static Analysis. Interactive Sessions. Automated Rule Discovery. Case Study: Loan Approval. The Early Stages. Fishbones. Input Data. Loan-assessment Rules. Rule-discovery Summary. 5. Controlling Rule Quality. Developing Quality Rules. Reviewing Rules. What to Look for in Reviewing Rules. Roles. Rule Context. Tone. Review Outcomes. Review Records and Approvals. Walkthroughs. Planning and Preparation. Conducting a Walkthrough. Inspections. Planning and Preparation. Managing an Inspection. Testing. The Use of Testing. Test Implementation. The Process of Testing. Case Study: Testing the VBB Loan-application Rules. Setting up the ABC Testing. Assessing the Rules. Choosing Test Cases. Implementing the Rule Tests. VBB Test Results. Metrics. Guidelines. Minimum Metrics. Quality Summary. III. IMPLEMENTING BUSINESS RULES. 6. The Technology Environment. More about Architecture. A Typical Reference Architecture. Business Flexibility. Shared Resources. Component Architecture. Interfaces. Component Interaction. Transactions. Server Pages and Ccripting. State Management. Implications for Business Rules. Where Rules Live. Client. Channel Tier. Middle Tier(s). Data Services Tier. Legacy Systems. Summarizing the Technology Environment. 7. Realizing Business Rules. Taking Stock. Distributing Rules. Realizing Rules. Program Statements. Scripts. Rule Components. Rules Engines. Database Mechanisms. Workflow Systems. Look-up Tables. Flags and Magic Codes. System Rules. Implementation Summary. 8. Managing Business Rules and Models. Life-cycle Costs. Managing Evolution. Coping with Changes. Automating Housekeeping. Deploying Rules. Testing a New System. Rollout. Supporting a Live System. Tools to Support Rule Management. Rule Repository. Why a Repository? Repositories and Rules Engines. An Example Repository Design. Rule Management Summary. IV. THE ROLE OF BUSINESS RULES. 9. A Wider View. Marshaling Intellectual Resources. Knowledge Management. Developing Knowledge Management. Capturing Knowledge. What's the Problem? Knowledge Representation. Enriched Models. Packaging for Reuse. New Kinds of Services. Knowledge Summary. 10. Summing Up. The Purpose of This Book. Models. Trends. Business Process Reengineering. Quality Management. Reducing the Maintenance Burden. Better Specification. Distributed Computing. Soft Assets. Business Rule Characteristics. Rule Populations. Other Properties. Who? Where? When? Rule Programming. Advantages of Business Rules. Business Rule Features. Categories of Benefits. Appendix: A Little Bit of Logic. Business Logic. Why Logic? Logic and Logics. A Logical Framework. Forms and Symbols. Propositions. What's a Proposition? Standard Forms of Proposition. Visualizing Propositions. Alternative Forms of Propositions. Logical Operations. Syllogisms. Other Kinds of Arguments. Handling Logical Values. Nothing but the Truth. Combining Logical Values. How Many Functions? Final Words. Selected Bibliography. Index. 0201743914T03042002

Reviews

Author Information

Tony Morgan is a Senior Solution Specialist at Unisys Corporation. He has a broad range of IT experience gained at companies such as EDS and Unisys, including more than fifteen years of rule-based system development. His main interest is in IT systems that deliver real business value. Tony holds a Ph.D. in Computer Science from the University of Cambridge and is a Visiting Research Fellow at Brunel University in London, England. 0201743914AB03112002

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