The term 'ease of deployment' pertains to how simple and quick it is to deploy a system or application. A deployment process that is considered easy would typically have automated procedures, clear documentation, and require minimal configuration changes. This simplification reduces the chance of errors and security risks associated with manual interventions. In contrast, 'availability' refers to the ability of the system to be operational and accessible when needed, while 'resilience' is the capacity to withstand and quickly recover from incidents. 'Scalability' refers to the ability to handle increased workload without impacting performance.