The document discusses Operations-as-a-Service (OaaS) which provides ongoing management and optimization of servers and infrastructure. It describes how OaaS supports businesses by handling tasks like monitoring, backups, security and software updates. Case studies show how OaaS providers like ChinaNetCloud helped companies optimize their infrastructure on Aliyun cloud, improve performance, reliability and reduce costs through managed server operations. Customers reported benefits like higher uptime and ability to focus on their business instead of server management.