1. OASIS. (2013). Content Management Interoperability Services (CMIS) Version 1.1. OASIS Standard.
Section 2.1.3, "Object Model": Lists the base object types as Document, Folder, Relationship, Policy, and Item. It makes no mention of a Workflow object type.
Section 2.1.5, "Policies": Defines the Policy object and its purpose.
Section 2.1.6, "Versioning": Details the versioning model for Document objects.
Section 2.2.2, "Document Objects": Describes the cmis:document base type.
2. Alfresco Documentation. (2017). CMIS. Alfresco Content Services 5.2 Documentation.
CMIS introduction: "CMIS provides a common data model for all the content and a set of services for working on the content...". The documentation details support for documents, folders, versioning, and policies but directs users to the Alfresco REST API for workflow interactions, confirming workflow is outside the CMIS scope.