The packaged business capability (PBC) framework was implemented to establish a service-oriented architecture. We introduced a customized virtual assistant for deployment within data centers. Leveraging the PBC framework, this service provides lightweight and highly encapsulated business functionalities with a strong emphasis on quantum-safe measures. The modular nature of the PBC framework integrates diverse PBC instances to enhance system capabilities. In a case study, the integration of the virtual assistant with various PBCs relevant to data center resource management was demonstrated, emphasizing the strategic amalgamation of PBC components to enhance system value. Additionally, the role of post-quantum nginx in fortifying architecture security against quantum threats was explored. The successful deployment of the framework by Chunghwa Telecom underscores its potential for widespread adoption in diverse industries to drive digital transformation. Such results address critical security challenges posed by quantum computing.