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Software Estimation Without Guessing

Effective Planning in an Imperfect World

Paperback Engels 2020 9781680506983
Verkooppositie 9355
Verwachte levertijd ongeveer 8 werkdagen


Estimating software development often produces more angst than value, but it doesn’t have to. Identify the needs behind estimate requests and determine how to meet those needs simply and easily. Choose estimation techniques based on current needs and available information, gaining benefit while reducing cost and effort. Detect bad assumptions that might sink your project if you don’t adjust your plans.

Learn strategies for effective decomposition of work and aspects of the work that likely affect your estimates. Hedge your bets by comparing the results of different approaches. Estimate in comparison to past experience, by modeling the work mathematically, or a hybrid of both. Discover what to do when an estimate proves wrong. And they will.

They’re estimates, after all. Find out how to recover and how to use that knowledge for future planning. You’ll discover that you can use estimates to warn you of danger so you can take appropriate action in time. Learn to communicate about estimates in a healthy and productive way, maximizing advantage to the organization and minimizing damage to the people.

Address both the technical and sociological aspects of estimation, and you’ll help your organization achieve its desired goals with less drama and more benefit.


Aantal pagina's:150
Hoofdrubriek:IT-management / ICT


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Over George Dinwiddie

George Dinwiddie is a software development consultant and coach who has helped a wide variety of people in a wide array of organizations and situations. He has studied both technical and human aspects of software development and has decades of experience in hardware and software engineering. His eclectic background extends well beyond software development, and he uses that knowledge and his personal experience with estimation to facilitate improvements in technical, organizational, and social realms.

Andere boeken door George Dinwiddie


-Benefit of Headlights
-Beyond Story Points and Planning Poker
-Who This Book Is For
-Goal of This Book
-What’s in This Book
-Conventions Used
-Now It’s Your Turn

Starting Something New
-When You’re Asked to Estimate Something New
-Case: Developing a Fixed-Price Bid
-Case: Is This Worth Starting?
-Case: Can We Make This Work?
-Case: What Should We Budget?
-Case: Which of These Should We Choose?
-Case: A Mixture of Questions
-Stepping Back for a Broader View
-Now It’s Your Turn

Comparison-Based Estimation
-Comparison to Past Experience
-Memory vs. Recorded Data
-Aspects to Compare
-Gestalt Estimation
-Estimating the Unknown
-Stepping Back for a Broader View
-Now It’s Your Turn

Decomposition for Estimation
-Which Way to Slice?
-Decomposing by Phase
-Decomposing by Implementation
-Decomposing by Functionality
-User Stories
-Decomposition Decisions
-A Large Number of Small Parts
-A Small Number of Large Parts
-Affinity Estimation
-Ordering the Parts
-Multi-Level Decomposition
-Comparing Big Items with Small Ones
-Decomposition Gotchas
-Stepping Back for a Broader View
-Now It’s Your Turn

Checking Progress
-Getting Things Done
-Detecting Progress
-What to Measure
-Visualizing Progress
-Showing Value for the Money
-Efficiency and Effectiveness
-Are We Going Fast Enough? excerpt
-Pushing Our Limits
-Situational Awareness
-Stepping Back for a Broader View
-Now It’s Your Turn

Model-Based Estimation
-Modeling the Size
-Modeling the Rate
-Unavoidable Subjectivity
The Linear Model Approach
-Advanced Linear Model Techniques
-The Parametric Model Approach
-The Stochastic Model Approach
-Comparison-Model Hybrid
-Stepping Back for a Broader View
-Now It’s Your Turn

Estimating Milestones
-Early Release
-Coordination with Others
-Evaluating and Changing Plans
-Stepping Back for a Broader View
-Now It’s Your Turn

When Estimates and Actuals Differ
-Driving Up Costs
-Salvaging the Situation
-Learning from the Situation
-Stepping Back for a Broader View
-Now It’s Your Turn

Planning for Incorrect Predictions
-Seeking Out Information
-Setting Traps for Information
-Avoid Traps for the Unwary
-Stepping Back for a Broader View
-Now It’s Your Turn

When People Clash
-It Starts So Innocently
-How It Goes Wrong
-Understanding Human Behavior
-Imagine a Better Situation
-Retraining Ourselves
-Tools for Better Understanding
-Stepping Back for a Broader View
-Now It’s Your Turn

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