Modular designs refer to a method of creating products or systems using separate, interchangeable components or modules. This approach allows for flexibility, as modules can be easily added, removed, or replaced without affecting the entire structure. It is commonly used in various fields, including architecture, software development, and manufacturing. One of the key benefits of modular designs is their ability to simplify maintenance and upgrades. For example, in software development, developers can update individual modules without needing to overhaul the entire application. This not only saves time but also reduces costs and enhances overall efficiency.