This document specifies the Resources that have been defined by OCF that may be exposed by an OCF Device. Application profile device documents (for example those created for Smart Home or Healthcare) specify device types appropriate to the profile; such documents use Resource Type definitions from this document. This document is built on top of ISO/IEC 30118-1. ISO/IEC 30118-1 specifies the OCF Framework that enables the implementation of profiles for IoT usages and ecosystems. The OCF Core Framework is scalable to support simple devices (constrained device) and more capable devices (smart device).