Using the WaterML Standard Information Model, in a SCADA Federation Web Service

Abstract

Large scale, water management infrastructures have various parts – water collection, distribution, wastewater treatment, to name a few. Being so large, these systems have their own SCADA monitoring and control structures. However, these systems also depend on each other, so they need to communicate and, also, external authorities need to extract information from them. If these systems were connected in a federation, or, software wise, a cloud, they could interchange data easier, among each other and with authorized externals. This paper describes a web service, developed to offer controlled access to the resources of a multi-member federation of SCADA systems. Access to the federation and its data is through a single point of entry and is curated by gateways. The web service returns the requested data in WaterML format, an XML standard specific to water systems.