	US 7,542,982 B2
	Message validation model
Suman Kumar Kalia, Maple (Canada); David A. Spriet, Sharon (Canada); and Hamzeh Zawawy, Toronto (Canada)
Assigned to International Business Machines Corporation, Armonk, N.Y. (US)
Filed on Sep. 05, 2006, as Appl. No. 11/469,972.
Prior Publication US 2008/0059505 A1, Mar. 06, 2008
Int. Cl. G06F 17/30 (2006.01)

U.S. Cl. 707—101 [707/102; 707/E17.127; 715/239]

3 Claims

1. A computer program embedded in a computer readable storage medium and executed by a computer processor for electronic data interchange, the executed computer program performing the steps comprising:

defining a message validation model using a schema, wherein the defined message validation model includes:

a validation layer comprising a rules base class, a schema level base classes, a rule constraints base class, a coexistence rules class, a message level base class, and a valid rule values base classes;

a message model element, wherein the message model element is linked with the schema level base class, the message model element including a coexistence rule module and a multiple element rule module and valid value rules with values defined external to the schema;

a set of message level rules, wherein the set of message level rules allows two distinct messages based on the schema to be enforced differently from one another;

defining a set of pre-defined rules for the schema, wherein the set of predefined rules includes a set of coexistence rules, a set of valid value rules, and a set of message level rules and multi element rules;

defining a deployment model, wherein the defined deployment model converts the set of pre-defined rules from schema level rules to message level rules, and obtaining an XPATH of a source and a dependent element along with a set of constraints to be applied to the dependent element;

populating the defined deployment model;

serializing the populated deployment model with the set of message level rules as an XMI file;

generating a query to validate instance documents that are requested to be interchanged based on the defined message validation model and the set of pre-defined rules;

executing the set of pre-defined rules using a query language to determine a source and dependent elements;

wherein the coexistence rule module includes a rule that specifies for a first existing element, at least one element that must exist and optionally having a required value or range of values depending on the value or range of values of the first existing element;

wherein the multiple element rule module is associated with a container and applies to elements within the container and includes a rule that specifies paired rules, required rules and exclusive rules; and

wherein the set of valid value rules specifies a set of valid values for a second existing element defined externally in a database table column.