1. A system for merging documents comprising: a computer system including at least one processor configured to: receive an update document and a target document, wherein the update document and target document are document instances of a common document schema; determine whether an item of information in the update document is associated with an eligible path of the document schema in a predefined update table; generate, responsive to affirming that the item of information is associated with the eligible path, a specification of an operation by which the item of information is merged into the target document in compliance with the document schema; and apply the specified operation to the target document to produce an updated document in compliance with the document schema.
1. A system for merging documents comprising: a computer system including at least one processor configured to: receive an update document and a target document, wherein the update document and target document are document instances of a common document schema; determine whether an item of information in the update document is associated with an eligible path of the document schema in a predefined update table; generate, responsive to affirming that the item of information is associated with the eligible path, a specification of an operation by which the item of information is merged into the target document in compliance with the document schema; and apply the specified operation to the target document to produce an updated document in compliance with the document schema. 5. The system of claim 1 , wherein the target document includes an XML document, the update document includes an XML document, and the document schema includes an XML schema.