Scope This Recommendation | International Standard defines generic upper-layer managed objects. This Recommendation | International Standard: establishes a model for common supporting upper layer objects; provides generic and formal definitions for common supporting upper layer information (managed objects). This Recommendation | International Standard does not: define new management functions; specify a framework or methodology for conformance tests. In the context of this Recommendation | International Standard, the term Supporting Upper Layers is used to refer to ACSE, Presentation, and Session layers.