Description: AWS CloudFormation parameters are values that can be passed to CloudFormation templates to customize the creation of cloud resources. These parameters allow users to define specific configurations that suit their needs, facilitating the reuse of templates and the deployment of infrastructures in a more flexible manner. By using parameters, developers can modify aspects such as instance sizes, network configurations, or access credentials without needing to alter the template code itself. This not only improves efficiency in resource management but also promotes consistency and standardization in deploying applications in the cloud. Parameters can be of different types, such as strings, numbers, or lists, and can include default values, descriptions, and constraints to guide users in their selection. In summary, AWS CloudFormation parameters are an essential tool for customizing and efficiently managing cloud resources, allowing development and operations teams to work more agilely and effectively.