1. Introduction
This revised 2nd edition provides a comprehensive guide to the fundamental techniques for specifying and expressing requirements in software development. It clarifies the core concepts of 'requirements' and 'specifications,' offering practical approaches and methods for creating effective specification documents. The book emphasizes structuring requirements hierarchically and using precise language, particularly verbs, to prevent omissions and ensure clarity throughout the development process.
Figure 1.1: Book cover illustrating the focus on structured thinking for requirements.
The manual addresses common challenges faced in software development, such as frequent specification changes and the occurrence of bugs, by providing a structured approach to requirements engineering.
2. Key Concepts and Purpose
This book aims to equip readers with the essential knowledge and skills for effective requirements specification. Key objectives include:
- Understand the Essence: Grasp the fundamental definitions and distinctions between 'what is a requirement' and 'what is a specification'.
- Master Documentation: Acquire the thought process and concrete procedures for creating robust requirement specification documents.
- Refine Expression: Enhance techniques for clearly articulating requirements to avoid ambiguity.
- Prevent Omissions: Implement strategies to eliminate specification omissions, ensuring a complete and accurate understanding of project needs.
- Streamline Development: Facilitate a smoother software development process by establishing clear and well-defined requirements from the outset.
3. Author Information
This manual is authored by Yoshio Shimizu, affiliated with System Create Co., Ltd. Mr. Shimizu is a recognized expert in software development and requirements engineering, bringing extensive practical experience to this guide.
4. Specifications
| Attribute | Detail |
|---|---|
| Publisher | Gijutsu-Hyohron Co., Ltd. |
| Publication Date | 2010/05/01 |
| Language | Japanese |
| Format | Softcover Book |
| Page Count | 384 pages |
| ISBN-10 | 4774142573 |
| ISBN-13 | 978-4774142579 |
| Dimensions | 15 x 2.2 x 21 cm |
5. How to Use This Book
To maximize the benefits of this guide, it is recommended to read through the initial sections to establish a foundational understanding of requirements and specifications. Subsequent chapters build upon these concepts, offering practical exercises and detailed methodologies. Engage with the examples provided to solidify your comprehension.
The book is structured to guide you from theoretical understanding to practical application. Consider revisiting chapters as you encounter real-world challenges in your projects.
6. Applying the Techniques
The core of this manual lies in its practical application. The techniques presented, particularly the emphasis on hierarchical structuring and the conscious use of verbs in expressing requirements, are designed to be directly integrated into your software development workflow. Implement these methods when drafting new specifications or refining existing ones.
Focus on breaking down complex requirements into manageable, clearly defined components. Pay close attention to the action-oriented language (verbs) used to describe system behaviors and user interactions, as this is crucial for preventing misinterpretations and ensuring precise implementation.
7. Maintaining Your Skills
Requirements engineering is an evolving field. To maintain and enhance your skills, regularly review the principles outlined in this book. Practice applying the techniques on diverse projects to adapt them to various contexts. Engage with industry best practices and continuous learning to stay updated with new methodologies and tools.
Consider this book a foundational reference. Periodic re-reading of key sections can reinforce understanding and help you identify areas for further improvement in your specification writing process.
8. Addressing Common Challenges
This manual directly addresses common issues in requirements specification, such as:
- Frequent Specification Changes: Learn methods to anticipate and manage changes effectively by establishing clear baselines and change control processes.
- Bug Occurrences Due to Unclear Requirements: Implement precise language and structured documentation to minimize ambiguity, thereby reducing the likelihood of defects stemming from misunderstood specifications.
- Specification Omissions: Utilize hierarchical decomposition and detailed expression techniques to ensure all necessary requirements are captured and documented.
By applying the methodologies described, you can proactively mitigate these challenges and improve the overall quality and efficiency of your development projects.
9. Publisher Information & Resources
For inquiries regarding this publication, errata, or additional resources, please contact the publisher:
Gijutsu-Hyohron Co., Ltd.
Website: https://gihyo.jp/
Further information about the author, Yoshio Shimizu, and related works may be available through the publisher's website or other professional platforms.
