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Home > Business and Economics > Business and Management > E-commerce: business aspects > E-Business and IS Solutions: An Architectural Approach to Business Problems and Opportunities
E-Business and IS Solutions: An Architectural Approach to Business Problems and Opportunities

E-Business and IS Solutions: An Architectural Approach to Business Problems and Opportunities


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About the Book

With the emergence of e-business and other fast-moving business technologies, the efficient and successful development of information systems that support e-business has become increasingly critical. An architectural approach to building these systems can greatly increase the chances of success. E-Business and IS Solutions provides a high-level introduction and understanding of an architectural approach to building IT solutions, in particular those that support e-business. Written for IS professionals with a wide range of experience, as well as technical managers, the book delineates a seven-stage building process and offers experience-based guidance on issues critical to the success of e-business systems in the real world. Featured is an overview of the essentials of e-business, IT architecture, and the relationship between architectural solution building and object-oriented design methods. Buffam explores the trade-offs and considerations of project scope for both large-scale and smaller projects. After reviewing fundamental architectural principles, the author details the seven-stage process: business modeling, IS modeling, current IS analysis, IS architecture planning, implementation planning, deployment, and review. He provides vital information on team roles and dynamics, incorporating legacy systems, cost-benefit and risk analyses, transition strategy, and project management. Specific topics covered include: *The effects of e-business on architectural IS solution building *Object-oriented methods and architectural solution building *Critical success factors for large-scale and narrow-scope projects *Aligning the IS solution with business objectives *The importance of simplicity and elegance, conceptual integrity, and intellectual manageability in solution building *Guidelines for business-driven and technology-driven IS strategies *Defining architecture models and supporting IT infrastructure You will also find an entire chapter devoted to practical issues you are likely to encounter. This chapter addresses such issues as dealing with consultants, putting a methodology into practice, allocating resources, integrating multiple projects, and working with software reuse. You will come away from this book with an enhanced understanding of the challenges facing you and a clearer idea of the direction to take. 0201708477B04062001

Table of Contents:
Preface. Acknowledgments. I. SETTING THE SCENE FOR ARCHITECTURAL SOLUTION BUILDING. 1. Characteristics of E-Business. What Do We Mean by “E-Business”? What Are the Effects of E-Business on Architectural IS Solution Building? 2. The Essence of “Architecture.” The Evolution of Information Systems. The Legacy of Isolated Systems. The Emergence of Standards. The Need for IS Architectures. “Architecture” and the Original Architects. Why Do We Need Architecture in Information Systems? Fundamental Requirements. Enabling Requirements. “Architecture” in Information Systems — What Is It? The Common-Component Sense of “Architecture.” The Design Sense of “Architecture.” The Blueprinting Sense of “Architecture.” The Framework Sense of “Architecture.” Summary of the “Architectural Way.” 3. Object-Oriented Methods and Architectural Solution Building. What Is Object Orientation All About? Object Orientation Compared with Functional Decomposition. Models for Architectural Solution Building. Modeling and Requirements Gathering. Object-Oriented Development Environments. Object Orientation and the “Architectural Way.” Benefits of an Object-Oriented Approach. Narrowing the Semantic Gap. Object Orientation and Good Design. Object Orientation at the Source Code Level. Objects and Components. Pitfalls of an Object-Oriented Approach. Large, Complex Enterprises. Inappropriate Mindset. OO Benefits without OO Tools. Where to Find More Information. 4. Project Scope Considerations. Large-Scale Projects. Characteristics of Large-Scale Projects. Critical Success Factors for Large-Scale Projects. Narrow-Scope Projects. Characteristics of Narrow-Scope Projects. Narrowing the Scope to Produce Repeatable Solutions. Trade-Offs in Project Scope. A Scope Trade-Off Illustration. Scope, Commitment, and Risk. Impact of Varying Scope on Architecture Stages. The E-Business Paradigm. The Reengineering Paradigm. The Incremental Improvement Paradigm. Summary of Project Paradigms. Where to Find More Information. II. THE SEVEN-STAGE SOLUTION-BUILDING PROCESS. 5. Introduction. Overview of the Architectural Solution-Building Process. Architectural Solution-Building Team. Stages and Participants. Team Roles. Team Size and Dynamics. Global Architectural Principles. 6. Business Modeling. Business Modeling in the Context of the Total Process. Relation to Other Stages. Relation to the OO Model Set. Participants. Information Sources for the Business Modeling Stage. Existing Written Material. Team Experience and Expertise. Interviews. Brainstorming Workshops. Business Strategy. Enterprise Mission and Objectives. Business Environment. The Business Model. Content of the Business Model. Tools for Developing the Business Model. Adjusting the Focus — Setting the Scope. Where We've Been, and Where We're Going. Reuse and the Business Model. Models for Reengineering. Models for E-Business. Models for Incremental Improvement. Applying the Business Model. Alignment of the IS Solution with Business Objectives. Organizational Impact of the Business Model. Models as Monitors of Scope Creep. Where Was the “Architecture”? 7. IS Modeling. IS Modeling in the Context of the Total Process. Relation to Other Stages. Relation to the OO Model Set. Participants. IS Strategy. Five-Era View. Developing the IS Strategy. Guidelines for Business-Driven IS Strategy. Guidelines for Technology-Driven IS Strategy. Content of the IS Strategy. The IS Model. The IS Model for Large-Scope Projects. The Reuse Principle and the IS Model. Content of the IS Model. The IS Model for Narrow-Scope Projects. Forks in the Road: Solution Alternatives. The IS Real-Object Model. Where Was the “Architecture”? 8. Current IS Analysis. Overview. Current IS Analysis in the Context of the Total Process. Relation to Other Stages. Participants. Introducing the Architectural Framework. Conducting the Current IS Inventory. Inventory of IS Components. Business Solution Applications. Solution Enablers. Data. Middleware Integration Software. Operating Systems. Hardware Platforms. Network. Development Environments, Tools, and Methodologies. Management Enablers. Security Enablers. IS Organization. Assessment of Current IS Environment. Functionality. Non-Functional Attributes. Human-Resource Capabilities. Outsourced Services. Where Was the “Architecture”? 9. IS Architecture Planning. IS Architecture Planning in the Context of the Total Process. Relation to Other Stages. Relation to the OO Model Set. Participants. Architectural Principles. How Are Principles Defined? Guidelines for Writing Principles. Defining Architecture Models. Forks in the Road: Solution Alternatives. Architecture Models for Object-Oriented Development Environments. Architecture Models for Non-Object-Oriented Development Environments. Defining Supporting IT Infrastructure. Technology Evaluation Criteria and Considerations. Filling Technology Gaps. Identifying Hardware and Software Products. IT Infrastructure for E-Business. Environmental Influences on E-Business Technology. E-Business Technology: Its Responses to Environmental Demands. Where Was the “Architecture”? Where to Find More Information. 10. Implementation Planning. Implementation Planning in the Context of the Total Process. Relation to Other Stages. Participants. Identifying Implementation Options. Preliminary Analysis of Implementation Options. Analyzing the Implementation Options. Cost-Benefit Analysis. Analyzing Risks. Analyzing Organizational Impact. Establishing a Transition Strategy. Using a Risk-Benefit Matrix. Selecting Short- and Long-Term Priorities. Diversifying Risk. Determining a Transition Sequence. Building a Business Case and Determining a Transition Strategy. Where Was the “Architecture”? Where to Find More Information. 11. Deployment. Deployment in the Context of the Total Process. Relation to Other Stages. Participants. Deployment Activities. Project Management. Management Tasks. Feedback Loops. Where Was the “Architecture”? 12. Review. The Review Stage in the Context of the Total Process. Participants. Relation to Other Stages. Reviewing Projects. Activities in the Review Stage. Maintaining the IS Architecture. Ongoing Maintenance. Ongoing Maintenance: Reacting to Change. Scheduled Maintenance. Benefits of Proper Maintenance. III. LET'S GET PRACTICAL. 13. Enlisting Outside Help: The Role of Consultants. Consultants for Cross-Enterprise Leverage. Consultants for Technology Expertise. Consultants as Project Managers. The Bottom Line on Consultants. 14. Methodologies: Patterns for Solution Building. What's in a Methodology? Developing or Acquiring a Methodology. Using a Methodology in Practice. Pitfall 1: “This Stuff Is Easy!” Pitfall 2: You Can't Fly a Boeing 747 Just by Reading the Manual. Pitfall 3: Methodology Bloat. 15. Practical Considerations in Conducting Solution Building. Feedback Loops and Whirlpools. Duration of Solution Building. Architectural Solution Building and Ongoing Projects. Allocating Resources. Integrating Multiple Projects. 16. Issues Concerning Reuse. Benefits of Reuse. Reuse Domains. Source Code. Middleware. Business Logic. Impediments to Reuse. Essential Enablers of Reuse. Environmental Drivers of Reuse. Sources of Reusable Artifacts. Reusable Artifacts from Ongoing Development. Reusable Artifacts from Current IS Assets. Reusable Artifacts from Packaged Software. Reusable Artifacts from the Specialty Store. Reusable Artifacts from the Specialty Broker. Epilogue: Take-Home Thoughts. Bibliography and References. Index. 0201708477T04062001

About the Author :
William J. Buffam is currently Director of the Unisys Architectural Center of Excellence, an organization that promotes the effective application of technology as business solutions. He has spent thirty years in software development, much of that time as a manager and software architect at Unisys and its predecessor company Burroughs, where he was a key architect for the Burroughs Network Architecture (BNA). 0201708477AB04062001


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Product Details
  • ISBN-13: 9780201708479
  • Publisher: Pearson Education (US)
  • Publisher Imprint: Addison Wesley
  • Language: English
  • Spine Width: 14 mm
  • Weight: 368 gr
  • ISBN-10: 0201708477
  • Publisher Date: 03 Oct 2000
  • Binding: Paperback
  • No of Pages: 288
  • Sub Title: An Architectural Approach to Business Problems and Opportunities
  • Width: 234 mm


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