SysML, or Systems Modeling Language, is a standardized visual modeling language used to design and analyze complex systems. It helps engineers and stakeholders communicate ideas clearly by providing a set of diagrams and notations that represent different aspects of a system, such as its structure, behavior, and requirements. This makes it easier to understand how various components interact and function together. By using SysML, teams can create models that capture both high-level concepts and detailed specifications. This approach supports better decision-making throughout the system development lifecycle, ensuring that all requirements are met and potential issues are identified early in the process.