This document discusses logical data models (LDMs) for cloud computing architectures. It analyzes existing cloud architectures from NIST and DMTF and presents generic LDMs for each. The LDMs provide a common framework for requirements and allow organizations to modify them based on specific needs. For the DMTF model, the service provider can activate, deactivate, and customize services for each consumer. For the NIST model, a service broker acts as an intermediary between provider and consumer, while a service auditor assesses operations and performance. LDMs provide a foundation for developing hybrid cloud architectures by mapping requirements to flexible frameworks.