On the other hand, during the past few years several organizations in the healthcare sector have produced standards and representation forms using XML. For example, patient records, blood analysis and electronic prescriptions are typically represented as XML-documents [6, 7, 8, 9, 10]. This generalization of XML-technologies sets a promising starting point for the management of medicinal documents. However, the introduction of XML itself is not enough but also many other XML-based technologies [5] have to be introduced in order to alleviate the complexity of managing medicinal information [11].