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Debugging The Nine Indispensable Rules for Finding Even the Most Elusive Software and Hardware Problems 1st Edition by David J Agans ISBN 0814471684 9780814471685

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Debugging The Nine Indispensable Rules for Finding Even the Most Elusive Software and Hardware Problems 1st Edition David J. Agans Digital Instant Download

Author(s): David J. Agans
ISBN(s): 9780814471685, 0814471684
Edition: 1st
File Details: PDF, 2.13 MB
Year: 2002
Language: english
SKU: EB-2378040 Category: Tag:

Debugging The Nine Indispensable Rules for Finding Even the Most Elusive Software and Hardware Problems 1st Edition by David J Agans – Ebook PDF Instant Download/Delivery: 0814471684, 9780814471685
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ISBN 10: 0814471684 
ISBN 13: 9780814471685
Author: David J Agans

When the pressure is on to resolve an elusive software or hardware glitch, what’s needed is a cool head courtesy of a set of rules guaranteed to work on any system, in any circumstance. Written in a frank but engaging style, this book provides simple, foolproof principles guaranteed to help find any bug quickly. Recognized tech expert and author David Agans changes the way you think about debugging, making those pesky problems suddenly much easier to find and fix. Agans identifies nine simple, practical rules that are applicable to any software application or hardware system, which can help detect any bug, no matter how tricky or obscure. Illustrating the rules with real-life bug-detection war stories, Debugging shows you how to: Understand the system: how perceiving the “”roadmap”” can hasten your journey Quit thinking and look: when hands-on investigation can’t be avoided Isolate critical factors: why changing one element at a time can be an essential tool Keep an audit trail: how keeping a record of the debugging process can win the day Whether the system or program you’re working on has been designed wrong, built wrong, or used wrong, Debugging helps you think correctly about bugs, so the problems virtually reveal themselves.

Debugging The Nine Indispensable Rules for Finding Even the Most Elusive Software and Hardware Problems 1st Table of contents:

Chapter 1: Introduction

  • How Can That Work?

  • Isn’t It Obvious?

  • Anyone Can Use It

  • It’ll Debug Anything

  • But It Won’t Prevent, Certify, or Triage Anything

  • More Than Just Troubleshooting

  • A Word About War Stories

  • Stay Tuned

Chapter 2: The Rules—Suitable for Framing

Chapter 3: Understand the System

  • Read the Manual

  • Read Everything, Cover to Cover

  • Know What’s Reasonable

  • Know the Road Map

  • Know Your Tools

  • Look It Up

  • Remember

  • Understand the System

Chapter 4: Make It Fail

  • Do It Again

  • Start at the Beginning

  • Stimulate the Failure

  • Don’t Simulate the Failure

  • What If It’s Intermittent?

  • What if I’ve Tried Everything and It’s Still Intermittent?

  • A Hard Look at Bad Luck

  • Lies, Damn Lies, and Statistics

  • Did You Fix It, or Did You Get Lucky?

  • “But That Can’t Happen”

  • Never Throw Away a Debugging Tool

  • Remember

  • Make It Fail

Chapter 5: Quit Thinking and Look

  • See the Failure

  • See the Details

  • Now You See It, Now You Don’t

  • Instrument the System

  • Design Instrumentation In

  • Build Instrumentation In Later

  • Don’t Be Afraid to Dive In

  • Add Instrumentation On

  • Instrumentation in Daily Life

  • The Heisenberg Uncertainty Principle

  • Guess Only to Focus the Search

  • Remember

  • Quit Thinking and Look

Chapter 6: Divide and Conquer

  • Narrow the Search

  • In the Ballpark

  • Which Side Are You On?

  • Inject Easy-to-Spot Patterns

  • Start with the Bad

  • Fix the Bugs You Know About

  • Fix the Noise First

  • Remember

  • Divide and Conquer

Chapter 7: Change One Thing at a Time

  • Use a Rifle, Not a Shotgun

  • Grab the Brass Bar with Both Hands

  • Change One Test at a Time

  • Compare with a Good One

  • What Did You Change Since the Last Time It Worked?

  • Remember

  • Change One Thing at a Time

Chapter 8: Keep an Audit Trail

  • Write Down What You Did, in What Order, and What Happened

  • The Devil Is in the Details

  • Correlate

  • Audit Trails for Design Are Also Good for Testing

  • The Shortest Pencil Is Longer Than the Longest Memory

  • Remember

  • Keep an Audit Trail

Chapter 9: Check the Plug

  • Question Your Assumptions

  • Don’t Start at Square Three

  • Test the Tool

  • Remember

  • Check the Plug

Chapter 10: Get a Fresh View

  • Ask for Help

  • A Breath of Fresh Insight

  • Ask an Expert

  • The Voice of Experience

  • Where to Get Help

  • Don’t Be Proud

  • Report Symptoms, Not Theories

  • You Don’t Have to Be Sure

  • Remember

  • Get a Fresh View

Chapter 11: If You Didn’t Fix It, It Ain’t Fixed

  • Check That It’s Really Fixed

  • Check That It’s Really Your Fix That Fixed It

  • It Never Just Goes Away by Itself

  • Fix the Cause

  • Fix the Process

  • Remember

  • If You Didn’t Fix It, It Ain’t Fixed

Chapter 12: All the Rules in One Story

Chapter 13: Easy Exercises for the Reader

  • A Light Vacuuming Job

  • A Flock of Bugs

  • A Loose Restriction

  • The Jig Is Up

Chapter 14: The View from the Help Desk

  • Help Desk Constraints

  • The Rules, Help Desk Style

    • Understand the System

    • Make It Fail

    • Quit Thinking and Look

    • Divide and Conquer

    • Change One Thing at a Time

    • Keep an Audit Trail

    • Check the Plug

    • Get a Fresh View

    • If You Didn’t Fix It, It Ain’t Fixed

  • Remember

  • The View from the Help Desk Is Murky

Chapter 15: The Bottom Line

  • The Debugging Rules Web Site

  • If You’re an Engineer

  • If You’re a Manager

  • If You’re a Teacher

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Tags: David J Agans, Debugging, Elusive Software, Hardware Problems