Patterns for Performance and Operability Building and Testing Enterprise Software

It is a scenario too familiar to the software industry: new software is delivered to customers and suddenly unforeseen and devastating bugs cause everything to crash. Patterns for Performance and Operability is filled with practical, hands-on software development and testing techniques to ensure customers enjoy properly running software rather than complain about bugs and system crashes. The book explores in-depth nonfunctional design and testing that too many software professionals overlook to their peril. It shows how to avoid a range of real world user problems, unexpected data permutations, and unforeseen input that lead to software failure. Designers, developers and testers can refer to the book's catalog of defensive software patterns to guarantee high-quality performance.

Structured to follow the software life cycle, Patterns for Performance and Operability provides advice and examples-based instructions at every phase. You can read it from start to finish or go directly to those chapters that interest you the most. Whatever approach you choose, you will learn: How to: · Define and document comprehensive non-functional requirements for any software system · Define scope and logistics for non-functional test activities · Execute non-functional tests and report results clearly and effectively · Patterns for defensive software designs in common software scenarios that promote operability and availability · Implement the right level of reporting, monitoring, and trending for highly available production software systems Patterns for: · Software designs that support simpler and more efficient operation in a production environment · Software design that support high-performance and scalability Strategies and Techniques for: · Techniques for managing and troubleshooting during a production crisis · Strategies for resisting project pressure to compromise on quality or completeness of non-functional activities in the software cycle

Introduction Production Systems in the Real World Why Should I Read This Book? The Non-functional Systems Challenge What Is Covered by Non-functional Testing Planning for the Unexpected Patterns for Operability in Application Design Summary Planning and Project Initiation The Business Case for Non-functional Testing Scoping and Estimating Test and Resource Planning Communication Planning Summary Non-functional Requirements What are Non-functional Requirements? Do I Need Non-functional Requirements? Roles and Responsibilities Challenging Requirements Establishing a Business Usage Model Non-functional Requirements Summary Designing for Operability Error Categorization Design Patterns The Characteristics of a Robust System Infrastructure Services Design Reviews The Operability Review Summary Designing for Performance Requirements Architecture Patterns Antipatterns Algorithms Technology Software Hardware Infrastructure Summary Notes Test Planning Defining Your Scope Load Testing Software Additional Testing Apparatus Test Environments Test Beds Historical Data Summary Test Preparation and Execution Preparation Activities Script Development Performance Testing Operability Testing Sustainability Testing Challenges Summary Deployment Strategies Procedure Characteristics Packaging Deployment Rehearsal Rollout Strategies Case Study: Online Banking Case Study: The Banking Front Office Back-Out Strategies Summary Resisting Pressure from the Functional Requirements Stream A Question of Degree Pressures from the Functional Requirements Stream Attention Defining Success Setting the Stage for Success Summary Operations Trending and Monitoring Monitoring Trending and Reporting Error Reporting Capacity Modelling and Planning Summary Troubleshooting and Crisis Management Reproducing the Issue Determining Root Cause Troubleshooting Strategies Applying a Fix Post-Mortem Review Summary Common Impediments to Good Design Design Dependencies What Is the Definition of Good Design? Testing a Design Common Impediments to Good Design Design Principles Summary References Articles Books Web Sites