Use of standard vocabulary services in validation of water resources data described in XML

Abstract

The machine readable encoding language XML is used in water informatics to describe resources and observational data, such as the Water Data Transfer Format (WDTF). WDTF is part of an Australian initiative, established by the Australian Bureau of Meteorology in collaboration with CSIRO, to collate water resources data from multiple data providers into a national water information system. A common way of validating XML data is by defining a schema using XML Schema Definition language (XSD) and performing validation using standard XSD tools. However, XSD validation lacks the ability to perform content validation to assert context, domain and organizational rules such as soft-typing, coconstraints, and code-list or vocabulary checking, which is required in the validation of WDTF data. In this paper, we describe a validation service for validating water resources data encoded in WDTF, which combines structural and content validation. We also describe the use of a vocabulary service with the WDTF validation service to perform code-list and vocabulary checking.

Validating observation data in WaterML 2.0

“…There is a possibility to test such development further in the context of the OGC Interoperability Experiments, some of which are making use of WaterML 2.0. This paper presents a WaterML 2.0 validation service based on the architecture of the Water Data Transfer Format (WDTF) validation service (Yu et al, 2011), which is used in a narrower national context by Australian Bureau of Meteorology. The WaterML 2.0 validation service adopts the same two-pass approach as the WDTF Validation service but replaces the contents for the respective components with WaterML 2.0 specific ones -i.e.…”

SISSVoc: A Linked Data API for access to SKOS vocabularies

“…A WDTF validation service was implemented using two standard schema languages together with a vocabulary service to check both structure and content (Figure 4) [38]. Data structure is validated using a XML schema validation component.…”