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ABSTRACT:A huge amount of geographical datasets are becoming available in distributed environments like Spatial Data Infrastructures (SDI). These datasets are very heterogeneous since they come from different independent sources and surveys and are structured in different formats. In the context of a national SDI that needs to assure an adequate quality level of the data it provides, it is necessary to face the problem of data validation in an uniform way independently from the chosen implementation technology. In this paper we present the tools and methodology for data validation which have been developed to support the construction of the Italian SDI. These tools are conformant to the relevant ISO 19100 and Open Geospatial Consortium (OGC) standards.

An 8-year-old girl arrived in the Emergency Department presenting with sudden unilateral right trismus, deviation of the jaw, burning pain in the neck with dystonic deviation of the same backwards and dyskinesia. The mother reported that the child started vomiting and that three days before she had started therapy with metoclopramide 0.5 mg/kg/day IM following her paediatrician’s indication. In the suspicion of metoclopramide-induced extrapyramidal symptoms, blood chemistry tests were performed showing normal results and midazolam 0.2 mg/kg was administered leading to regression of symptoms. After twenty minutes symptoms recurred with pain-induced sinus tachycardia (HR 180 BPM). Therefore, she was administered a second dose of midazolam EV at 0.15 mg/kg that led to a complete and definitive regression of symptoms. Metoclopramide is a neuroleptic drug indicated only for the treatment of post-operative vomiting or chemotherapy in children over one year. The most common adverse reaction is the onset of extrapyramidal symptoms. A careful risk-benefit balance must always be performed before deciding whether to administer an antiemetic drug.

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