Background
XML
XML is the eXtensible Markup Language, a way of encoding data in a file with markup that explains to readers what the data represents.
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Systems that interface with eLandings can generally continue to use an outdated schema if they do not use data elements contained in a newer schema. While the eLandings development team recommends that all interfacing systems keep up to date on schema versions, we recognize that it can be difficult or inconvenient to update interface code in a timely manner. The eLandings system supports the use of legacy versions of the schema. The system upgrade automatically upgrades incoming data to the current version of the schema automatically.
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If the schema is changed to add a new required field then that field will still be required, even if data is imported using an older version of the schema. The use of legacy versions of the schema does not relieve the user of the requirement to honor all current business rules in the system. In general, interfacing systems should be upgraded within one year of the time when the schema they are using becomes superseded. |
For interfacing systems that export XML documents from eLandings, the user export feature on landing and production reports renders the XML document according to the current schema version. In the Spring of 2009 the eLandings system added a schema version preference to its user profile page. This allows users to specify a legacy schema version to use. This allows users to continue to export reports created with an older version of the schema while their system developers are enhancing their system to use the newer version of the reports.
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