What is requirements definition? A basic explanation of the process and necessary skills to create it

[mdabuhasan]

Requirements definition" is an important process in system development and website production. This time, we will introduce requirements definition for those who want to deepen their understanding, including the process up to creation, the necessary skills, and answers to frequently asked questions.

Supervisor

Mr. Shinya Yamamoto
Shinya Yamamoto,
CEO of ShareDan Inc.

Born in Sanmu City, Chiba Prefecture in May 1984. After graduating from Meiji University, he worked as a web director at Hoken Co., Ltd. While in charge of managing over 100 websites, he worked on website construction and business improvement, and became a freelancer in 2015.

After that, he taught himself front-end and back-end technologies and started developing his own services. In August 2017, he became CEO of ShareDan, Inc. Utilizing his experience in planning, building, and operating the company, he is involved in a wide range of activities, including building financial web applications and analyzing the websites of major carriers. He is also a director of the Japan Aikido Association, a specified non-profit organization.

table of contents

What is requirements definition?
What to define in the requirements specification
How to proceed with requirements definition
Why is requirements definition important?
What are the capabilities required for requirements definition?
Differences between requirements definition and terms that are easily confused
Frequently asked questions about requirements definition
summary
What is requirements definition?
Requirements definition is the process of clarifying the required functions, performance, expected results, etc. as "requirements," mainly in software and system development. It is sometimes called "RD," which stands for Requirements Definition, and a requirements definition document is a document that summarizes the requirements.

Requirements definition is done at the beginning of the phone number library development process and forms the basis of subsequent design and development. As the development process progresses, stakeholders often return to the requirements definition to confirm "what the customer wants in the first place," and it also plays a role in ensuring that the project does not lose sight of its objectives.

Who defines the requirements?
The requirements specification document is created primarily by the development team, not the client who places the order . However, in order to clarify the requirements, cooperation from all stakeholders, including the client, is essential. Who on the development side is responsible for defining the requirements will vary depending on the company's structure and project, but it is often the position or occupation that is in charge, such as a system engineer (SE), project manager (PM), or web director .