Crafting Non-Functional Requirements

Ever felt lost in conversations filled with terms like "scalability" and "five-nines availability" fly around? This book dives into the often-overlooked but mission-critical world of Non-Functional Requirements (NFRs), turning complex jargon into clear, actionable insights. Learn how to design, analyze, and optimize NFRs to ensure your systems are resilient, secure, scalable and performant.

Packed with real-world case studies, practical patterns, and a touch of tech humor, this guide shows you how NFRs can be the difference between a system that thrives and one that crashes under pressure. Get Ready—it's time to make NFRs your secret weapon for software success!

The author is letting you choose the price you pay for this book!

Pick Your Price...

Buying multiple copies for your team? See below for a discount!

PDF

214

Pages

About

About the Book

This book is for anyone who’s ever been caught nodding along in meetings where the words "scalability" and "fault tolerance" were thrown around like confetti but secretly had no idea what was going on. Whether you're an Solution Architect or System Designer or Software Developer or just the person who gets asked to "optimize" things without a clear explanation (spoiler: that’s still IT), this book has something for you.

If you're responsible for delivering strategic, tactical, or operational engagements for Fortune 100 companies, or if you're just trying to survive your weekly team sync without getting voluntold for something, this book is your new best friend.

Non-functional requirements (NFRs)—those sneaky, often-overlooked keys to any successful software or IT program—are finally getting the attention they deserve. Because let’s face it, ignoring them is like planning a road trip but forgetting to check if the car has gas. You might get out of the driveway, but good luck making it to your destination.

Whether you're crafting bespoke solutions in Java, .NET, or wrangling COTS applications, this book will help you tackle the wild world of NFRs without losing your sanity. You'll find a framework (yes, another one) for capturing NFRs that you can actually use, instead of just pretending to understand.

In short, if you’re in the business of making sure software works, stays up, stays fast, and doesn’t implode under pressure, this book is for you. And if you're here just for the pizza and post-deployment party, don’t worry—we cover that too (at least metaphorically).

Share this book

Feedback

Email the author

Price

Pick Your Price...

Minimum price

$18.00

$24.00

You pay

$24.00

Author earns

$19.20

Team Discounts

Get a team discount on this book!

Up to 3 members
Minimum price
$30.00
Suggested price
$40.00
Up to 5 members
Minimum price
$48.00
Suggested price
$64.00
Up to 10 members
Minimum price
$84.00
Suggested price
$112.00

Author

About the Author

Sameer Paradkar

Sameer Paradkar is an enterprise architect with more than 20+ years of diversified experience in the ICT industry encompassing System Integration, Product Development, and Advisory roles. Certified and Competent in different engagement methodologies and frameworks e.g. TOGAF, NGOSS, ITIL, COBIT, Agile, Scrum, DevOps, Scaled Agile Framework and Domain Driven Design. He is a subject matter expert on large scale complex architecture transformation and modernization domains. He has worked on multiple architecture transformations and modernization opportunities world-wide that presented a phased roadmap to the transformation that maximized the business value while minimizing costs and risks.

Table of Contents

Chapter 1: Foundation of Success: Crafting NFRs for Modern Systems

Why NFRs Are Essential in Modern Systems
Real-World Consequences of Neglecting NFRs
Key Non-Functional Requirements (NFRs)
Common Misconceptions About NFRs
NFRs and Business Value
Elements to Crafting Effective NFRs
Conclusion

Chapter 2: Modelling of Non-Functional Requirements

Introduction
Imperative of Quality Requirements in Architectural Design
NFR Software Development Life Cycle
Repercussions of Neglecting Quality Goals
Analytical Modelling for NFRs: Predicting System Behaviour
Conclusion and Key Takeaways

Chapter 3: Performance: Solutions, Patterns and Practices

Introduction to High-Performance System Design
High Performance NFRs and Key Performance Indicators (KPIs)
Modelling High-Performance System Requirements
Solution Options for High Performance Systems
High-Performance Design Patterns
Gen AI in High Performance Systems
Conclusion: Foundations of High-Performance System Design

Chapter 4: Performance: Challenges, Anti-Patterns and Pitfalls

Introduction: The Imperative of High Performance in Modern Systems
Interplay Key Software Quality Attributes
Evaluating Trade-offs in High-Performance System Design: A Methodical Approach
Anti-Patterns Impacting High Performance
Pitfalls in Designing High Performance Systems
Conclusion: Navigating the Landscape of High-Performance System Design

Chapter 5: Availability: Solutions, Patterns and Practices

Introduction: The Criticality of High Availability in Contemporary Systems
Key Performance Indicators - KPIs for Highly Available Systems
Modelling High Availability: Non-Functional Requirements (NFRs)
Solution Options for High Availability Systems
High Availability Design Patterns
Gen AI in High Availability Systems
Conclusion

Chapter 6: Availability: Challenges, Anti-Patterns and Pitfalls

Introduction: The Imperative of High Availability in Modern Systems
Interplay of HA with Key Software Quality Attributes
Methodologies for Evaluating and Making Informed Trade-offs in High Availability System Design
Anti-Patterns Impacting High Availability
Pitfalls in Designing High Availability Systems
Conclusion: Navigating the Landscape of High Availability System Design

Chapter 7: Scalability: Solutions, Patterns and Practices

Introduction: The Imperative of Scalability in Modern Systems
Key Performance Indicators (KPIs) for Scalable Systems
Modelling Scalability Non-Functional Requirements (NFRs)
Solution Options for High Scalability Systems 112
High Scalability Design Patterns: Building Resilient and Adaptable Systems
Gen AI in High Scalability Systems
Conclusion

Chapter 8: Scalability: Challenges, Anti-Patterns and Pitfalls

Introduction: The Imperative of Scalability in Modern Systems
Interplay with Other System Attributes
Methodologies for Evaluating and Making Trade-offs in Scalable System Design
Anti-Patterns Impacting Scalability
Pitfalls in Designing Scalable Systems
Conclusion: Navigating the Landscape of Scalable System Design

Chapter 9: Security: Solutions, Patterns and Practices

Introduction: The Imperative of Security in Modern Systems
Key Performance Indicators (KPIs) for Highly Secure Systems
Modelling Security Non-Functional Requirements (NFRs)
Solution Options for High Security Systems
Design Patterns for Security
Gen AI in High Security Systems
Conclusion: Laying the Foundations for Highly Secure Systems

Chapter 10: Security: Challenges, Anti-Patterns and Pitfalls

Introduction: The Imperative of Secured Modern Systems
Interplay and Interdependency of Security with Key Software Quality Attributes
Methodologies for Evaluating & Making Trade-offs in Secure System Design
Anti-Patterns Impacting Security
Pitfalls in Designing Highly Secure Systems
Conclusion: Navigating the Landscape of Highly Secure System Design

Chapter 11: Maintainability: Solutions, Patterns and Practices

Introduction: The Imperative of Maintainability in Modern Systems
Key Performance Indicators (KPIs) for Maintainable Systems
Modelling Maintainability Non-Functional Requirements (NFRs)
Solution Options for Highly Maintainable Systems
Design Patterns for Maintainable Systems
Gen AI in High Maintainability Systems
Conclusion

Chapter 12: Maintainability: Challenges, Anti-Patterns and Pitfalls

Introduction: The Imperative of Maintainability in Modern Systems
Interplay with Other System Attributes
Interplay of Maintainability with other System Attributes
Methodologies for Evaluating Maintainable System Design Trade-offs
Anti-Patterns Impacting Maintainability
Pitfalls in Designing Maintainable Systems
Conclusion: Navigating the Landscape of Maintainable System Design

Chapter 13: Resilience: Solutions, Patterns and Practices.

Introduction: The Imperative of Resilience in Modern Systems
Key Performance Indicators for Resilient Systems
Modelling Resilience Non-Functional Requirements (NFRs)
Solution Options for Highly Resilient Systems
Design Patterns for Resilient Systems
Gen AI in High Resilient Systems
Conclusion

Chapter 14: Resilience: Challenges, Anti-Patterns and Pitfalls

Introduction: The Imperative of Resilience in Modern Systems
Interplay with Other System Attributes
Methodologies for Evaluating Resilience System Design Trade-offs
Anti-Patterns Impacting Resilience
Pitfalls in Designing Resilience Systems
Conclusion: Navigating the Landscape of Resilience System Design

Chapter 15: Usability: Solutions, Patterns and Practices.

Introduction: The Imperative of Usability in Modern Systems
Key Performance Indicators (KPIs) for Usability Systems
Modelling Usability Non-Functional Requirements (NFRs)
Solution Options for Highly Usable Systems
Design Patterns for Usability Systems
Gen AI in High Usability Systems
Conclusion

Chapter 16: Usability: Challenges, Anti-Patterns and Pitfalls

Introduction: The Imperative of Usability in Modern Systems
Interplay with Other System Attributes
Methodologies for Evaluating Usability System Design Trade-offs
Anti-Patterns Impacting Usability
Pitfalls in Designing Usable Systems
Conclusion: Navigating the Landscape of Usability System Design

Chapter 17: Closing Thoughts

Why Sizing, Measurement, and Monitoring Are Essential for NFRs
Sizing for NFRs: Getting It Right
Analytical Modelling for NFRs: Predicting System Behaviour
NFR Testing: Going Beyond Functional Testing
Continuous Monitoring: Keeping Your NFRs in Check
Addressing Anti-Patterns and Pitfalls in NFR Implementation
Future Trends: Adaptive NFRs in Evolving Architectures
Closing Thoughts

The Leanpub 60 Day 100% Happiness Guarantee

Within 60 days of purchase you can get a 100% refund on any Leanpub purchase, in two clicks.

Now, this is technically risky for us, since you'll have the book or course files either way. But we're so confident in our products and services, and in our authors and readers, that we're happy to offer a full money back guarantee for everything we sell.

You can only find out how good something is by trying it, and because of our 100% money back guarantee there's literally no risk to do so!

So, there's no reason not to click the Add to Cart button, is there?

See full terms...

Earn $8 on a $10 Purchase, and $16 on a $20 Purchase

We pay 80% royalties on purchases of $7.99 or more, and 80% royalties minus a 50 cent flat fee on purchases between $0.99 and $7.98. You earn $8 on a $10 sale, and $16 on a $20 sale. So, if we sell 5000 non-refunded copies of your book for $20, you'll earn $80,000.

(Yes, some authors have already earned much more than that on Leanpub.)

In fact, authors have earned over $14 million writing, publishing and selling on Leanpub.

Learn more about writing on Leanpub

Free Updates. DRM Free.

If you buy a Leanpub book, you get free updates for as long as the author updates the book! Many authors use Leanpub to publish their books in-progress, while they are writing them. All readers get free updates, regardless of when they bought the book or how much they paid (including free).

Most Leanpub books are available in PDF (for computers) and EPUB (for phones, tablets and Kindle). The formats that a book includes are shown at the top right corner of this page.

Finally, Leanpub books don't have any DRM copy-protection nonsense, so you can easily read them on any supported device.

Learn more about Leanpub's ebook formats and where to read them

Write and Publish on Leanpub

You can use Leanpub to easily write, publish and sell in-progress and completed ebooks and online courses!

Leanpub is a powerful platform for serious authors, combining a simple, elegant writing and publishing workflow with a store focused on selling in-progress ebooks.

Leanpub is a magical typewriter for authors: just write in plain text, and to publish your ebook, just click a button. (Or, if you are producing your ebook your own way, you can even upload your own PDF and/or EPUB files and then publish with one click!) It really is that easy.

Learn more about writing on Leanpub