The Façade pattern's goal is to give a single interface to a group of interfaces in a subsystem. Façade defines a higher-level interface that simplifies the usage of the subsystem. Provide an example to support the statement's meaning.

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Requirement Analysis

A process that determines the user expectations for a software product is called requirement analysis. In software engineering, requirement analysis is known as requirement engineering. It involves communication with end-users and stakeholders to determine whether the system or software requirements are validated, conflicts are solved, and key requirements are documented. The first activity of the Software Development Life Cycle (SDLC) is requirement analysis.