Abstract: A technique for serializing both logical and physical meta-model information in a single file is disclosed. In an embodiment, the logical meta-model information is serialized in an Extensible Marking Language (XML) schema compliant format, and the physical meta-model information is inserted into the logical meta-model in suitable locations such that the mappings between the logical and physical meta-models are preserved. In an embodiment, an XML “appInfo” annotation is used to carry physical meta-model information used by multiple applications and suitably placed in a nested configuration with its corresponding logical meta-model information.

Abstract: A computer readable medium, method, and device for generating eXtensible Markup Language (XML) schema fragments for use in validating an XML message in a particular wire format is disclosed. The method uses as its input a custom XML schema based message model containing logical model extensions or wire format specific rendering options. The output of the method is an XML schema that includes XML schema fragments. The output schema complies with an accepted XML schema standard recognized by a standard schema validator. At run time, the output XML schema, along with the standard schema validator, may be used at a node which does not understand the custom message model to validate incoming XML messages. Depending upon the manner of generating of the XML schema fragments, the resultant validation may be strict or lax.

Abstract: For individual data items described by XML Schema elements and attributes of simple type, the type definitions are capable of defining the range of numeric data. Once the range is known, it is possible to deduce the number of bytes required for a given physical representation (primitive or inherited). A method is provided (as an example) for determining the minimum number of bytes required for twos complement integer, packed decimal and extended decimal representations.

Abstract: Within the scope of existing XML Schema specifications, an approach is provided to embed simple types within a complex type so an XML stream can have instances of the embedded simple types, even without the presence of XML elements. Because the approach is within the scope of existing XML Schema specifications, the approach is transparent to known XML parsers. With the approach, an XML schema will have a complex type with a mixed flag set to true and an element set to be a dummy element. The dummy element has a simple type and one of (i) a name of the dummy element and (ii) a name of the simple type is one of a predetermined set of names. This XML schema is for use with a parser which, on parsing the schema, will interpret the dummy element as one of an embedded simple type and an inherited simple type.

Abstract: Within the scope of existing XML Schema specifications, an approach is provided to embed simple types within a complex type so an XML stream can have instances of the embedded simple types, even without the presence of XML elements. Because the approach is within the scope of existing XML Schema specifications, the approach is transparent to known XML parsers. With the approach, an XML schema will have a complex type with a mixed flag set to true and an element set to be a dummy element. The dummy element has a simple type and one of (i) a name of the dummy element and (ii) a name of the simple type is one of a predetermined set of names. This XML schema is for use with a parser which, on parsing the schema, will interpret the dummy element as one of an embedded simple type and an inherited simple type.