Simple Architectures for Complex Enterprises.

Format:

Book

Author/Creator:

Sessions, Roger.

Series:

Developer Best Practices

Best practices

Language:

English

Subjects (All):

Computer architecture.

System design.

Local Subjects:

Computer architecture.

System design.

Physical Description:

1 online resource (205 p.)

Edition:

1st edition

Other Title:

Best practices

Place of Publication:

Sebastopol : Microsoft Press, 2008.

Language Note:

English

System Details:

text file

Summary:

Dismantle the overwhelming complexity in your IT projects with strategies and real-world examples from a leading expert on enterprise architecture. This guide describes best practices for creating an efficient IT organization that consistently delivers on time, on budget, and in line with business needs. IT systems have become too complex-and too expensive. Complexity can create delays, cost overruns, and outcomes that do not meet business requirements. The resulting losses can impact your entire company. This guide demonstrates that, contrary to popular belief, complex proble

Contents:

Cover; Copyright Page; Contents at a Glance; Table of Contents; Acknowledgments; Legal Notices; Introduction; The Organization of This Book; Find Additional Content Online; Support for This Book; Questions and Comments; Part I: The Question of Complexity; Chapter 1: Enterprise Architecture Today; Why Bother?; Issue: Unreliable Enterprise Information; Issue: Untimely Enterprise Information; Issue: New Complex Projects Underway; Issue: New Companies Being Acquired; Issue: Enterprise Wants to Spin Off Unit; Issue: Need to Identify Outsourcing Opportunities; Issue: Regulatory Requirements

Issue: Need to Automate Relationships with External PartnersIssue: Need to Automate Relationships with Customers; Issue: Poor Relationship Between IT and Business Units; Issue: Poor Interoperability of IT Systems; Issue: IT Systems Unmanageable; The Value of Enterprise Architecture; Common Definitions; What Is Enterprise Architecture?; Complexity in Enterprise Architectures; The Zachman Framework for Enterprise Architectures; The Open Group Architecture Framework; Federal Enterprise Architecture; Summary; Chapter 2: A First Look at Complexity; Partitioning; Executive Lunch; Choir Rehearsal

Emergency ResponsesClothing Store; Chess Games; Children at Starbucks; Rubik's Cube; Five Laws of Partitions; First Law: Partitions Must Be True Partitions; Second Law: Partition Definitions Must Be Appropriate; Third Law: Partition Subset Numbers Must Be Appropriate; Fourth Law: Partition Subset Sizes Must Be Roughly Equal; Fifth Law: Subset Interactions Must Be Minimal and Well Defined; Simplification; Iteration; Summary; Chapter 3: Mathematics of Complexity; Looking at Complexity; Laws of Complexity; Homomorphisms; Controlling Complexity in Dice Systems; Adding Buckets; Partitioning

Equivalence RelationsEquivalence Classes; Inverse Equivalence Relations; Equivalence Relations and Enterprise Architectures; Synergistic in Practice; Removing Faces; Removing Buckets; Other Measures of Complexity; Complexity in Theory and in Practice; Summary; Part II: The Quest for Simplification; Chapter 4: The ABCs of Enterprise Partitions; Review of the Mathematics; Partitioning the Enterprise; The ABCs of Enterprise Equivalence Classes; ABC-Type Relationships; Implementations and Deployments; ABC Types; Type Hierarchies; Composition Relationships; Partner Relationships

Relationships and Partition SimplificationRetail Operation, Again; Summary; Chapter 5: SIP Process; Overview; Phase 0: Enterprise Architecture Evaluation; Issue: Unreliable Enterprise Information; Issue: Untimely Enterprise Information; Issue: New Complex Projects Underway; Issue: New Companies Being Acquired; Issue: Enterprise Wants to Spin Off Unit; Issue: Need to Identify Outsourcing Opportunities; Issue: Regulatory Requirements; Issue: Need to Automate Relationships with External Partners; Issue: Need to Automate Relationships with Customers

Issue: Poor Relationship Between IT and Business Units

Notes:

Description based upon print version of record.

Description based on publisher supplied metadata and other sources.

ISBN:

9780735646056

0735646058

9780735646926

0735646929

OCLC:

780424983