Parameter active notify support (based on dm:activeNotify). Object access (based on dm:ProfileObjectAccess). All built-in data types. All facets. Annotation. Base facet (access attribute). Base facet (no attributes). Default facet. Value MUST be valid for the data type. Enumeration facet. Enumeration reference facet. Import data types and models (Root and Service Objects) from DM Instances. All such items MUST be imported (this is checked by schema validation). If specified, MUST be used to locate the DM Instance (B.2.1). If file is specified, this MAY be specified, in which case processing tools MUST regard a mismatch between this and the external document's spec attribute as an error. If file is not specified, this MUST be specified and be used to locate the DM Instance (B.2.1). Instance number reference facet. List facet. This specifies the size of the TR-069 list-valued parameter, not of the individual list items. Model (Root and Service Object) support details. Object support details minEntries MUST be greater than or equal to minEntries(DM), and less than or equal to maxEntries (all values are regarded as being less than "unbounded"). maxEntries MUST be less than or equal to maxEntries(DM) (all values are regarded as being less than "unbounded"). Parameter support details. Path name reference facet. Pattern facet (pattern syntax is as in XML Schema). Range facet. Size facet. Parameter data type anonymous restriction / extension. If specified, content MUST NOT be empty. Parameter syntax support details. Direct use of built-in data type, possibly modified via use of facets. Use of named data type, possibly modified via use of facets. Top-level feature. Units facet. CWMP Device Type XML Schema (DT Schema) instance documents can contain the following: * Imports (from DM Schema instance documents) of Root or Service Object definitions * Declarations of which features of imported Root or Service Objects are supported Top-level annotation. Imported models (Root and Service Objects). Bibliographic references. Top-level features. Details of support for model (Root and Service Object). URI indicating the device type associated with this DT Instance.