Systems design is the process of defining the architecture, components, modules, interfaces, and data for a system to satisfy specified requirements. It involves a disciplined approach to analyzing and specifying the structure and behavior of complex systems, ensuring they meet both functional and non-functional requirements.

Systems Design

Architecture is the art and science of designing and constructing buildings and other physical structures, balancing functionality, aesthetics, and environmental considerations. It involves a deep understanding of materials, technology, and cultural context to create spaces that enhance human experience and interaction.

Architecture

Components

Modules are self-contained units of code that encapsulate functionality, making it easier to organize, maintain, and reuse code across different parts of a program. They help in reducing complexity by providing a clear separation of concerns and promoting modular design principles.

Modules

Interfaces are crucial in defining the boundaries and interactions between different systems, components, or layers in both software and hardware environments. They enable modularity, interoperability, and abstraction, facilitating communication and integration while maintaining system integrity and flexibility.

Interfaces

Data for a system

Specified requirements

Disciplined approach

Analyzing complex systems

Specifying structure

Behavior of complex systems

Functional requirements define the specific behaviors and functions a system must perform to meet the user's needs, focusing on what the system should do rather than how it should do it. They serve as a foundation for system design, development, and testing, ensuring that the final product fulfills its intended purpose and user expectations.

Functional Requirements

Non-functional requirements define the quality attributes, performance metrics, and constraints of a system, ensuring it operates effectively under specified conditions. They are critical for user satisfaction and system reliability, often influencing the architecture and design choices of a project.

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