Functional and Non-Functional Requirements

The video discusses the importance of functional and non-functional requirements in software development. It explains how these requirements form the foundation of a successful project and highlights the challenges of miscommunication. Functional requirements focus on system functions, while non-functional requirements address user expectations and product quality. The video uses Instagram as an example to illustrate these concepts and concludes with a brief introduction to the company's services.

Why are functional and non-functional requirements crucial in software development?

• They help in marketing the product.

• They are used to train the development team.

• They set the foundation for a successful project.

• They are only needed for documentation purposes.

What is a functional requirement?

• A requirement that measures system performance.

• A requirement that describes the user interface.

• A function of a system with inputs and outputs.

• A requirement that ensures legal compliance.

Which document describes user interactions with software in a generalized way?

• Functional Requirements Specification

• Use Case Document

• User Stories Document

• Functional Decomposition

What is the purpose of functional decomposition?

• To evaluate the performance of the system.

• To list all the main features of the application.

• To describe user interactions with the software.

• To break down complex functionality into structural parts.

What do non-functional requirements help define?

• User expectations and product quality.

• The system's functionality.

• The programming languages to be used.

• The database solutions to be implemented.

Which of the following is NOT a main type of non-functional requirement?

• Calculations Performed by the System

• Legal or Regulatory Requirements

• Performance

• Usability

How should non-functional requirements be assessed?

• With a numeric score.

• By the marketing team.

• By user feedback only.

• During the final testing phase.

What is a functional requirement for Instagram?

• Content loading speed.

• Encryption of direct messages.

• System's performance in low latency conditions.

• User's ability to upload images and videos.

Which non-functional requirement is crucial for Instagram's performance?

• Push notifications.

• Automated location tagging.

• Content loading speed.

• Photo filters.

What is the main conclusion about functional and non-functional requirements?

• They are optional for software projects.

• They set the foundation for a successful software project.

• They are only needed for large projects.

• They are primarily for user interface design.