Holography delivers advanced three-dimensional (3D) imaging capabilities across visual technologies. To ensure the user experience, holographic interactive services have stringent requirements for immersion and real-time responsiveness, generating massive volumetric 3D data that imposes heavy burdens on terminal computing and network transmission. Distributed core cloud and edge cloud architectures mitigate such constraints through resource allocation and task scheduling to guarantee low-latency interactive experience. This Recommendation specifies requirements of holographic interactive multimedia service, including holographic capture, processing, core cloud and edge cloud deployment, encoding/decoding, rendering, reconstruction, user experience and availability, intelligence, management functions and security considerations.