On the Suitability of Estelle for Multimedia Systems

Formal Description Techniques have been widely used for the specification of traditional networked applications. They have not been applied to the specification of new applications such as multimedia systems yet. In this paper, we examine the FDT Estelle with respect to its suitability for multimedia system specification and automatic derivation of efficient implementations. We show that it is possible to specify certain aspects of multimedia systems, but that Estelle is not sufficient for others. The derived implementations often perform badly. We show the reasons and propose to use a slightly modified Estelle syntax and semantics to solve the problems. The implemented solution was tested successfully

Fibrodisplasia ossificante progressiva

Fibrodisplasia (miosite) ossificante progressiva (FOP) é doença rara, de herança autossômica dominante, na qual ocorre ossificação ectópica progressiva e malformação esquelética, principalmente no tecido conectivo dos músculos. O diagnóstico é baseado nos achados clínicos e demonstração radiologica das malformações esqueléticas. Relatamos o caso de uma menina de 5 anos de idade com FOP