Modular Development is a software development methodology that divides product functionality into discrete units called modules. Modules are self-contained and do not require any other module to function correctly. A module will typically expose a single API (Application Program Interface) that makes its functionality available to other parts of the product or external services and products. Modular Development can help developers create applications by breaking the problem down into smaller, more manageable pieces, which can be developed independently of each other.
Topics related to modular development include code organization strategies, model-view-controller architecture, and software reuse.