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We describe a method to derive safe approximations for data dependences in programs with pointers and structures. In our approach, alias information and reaching definitions' information at each program point is simultaneously covered by a single representation. We perform a single-pass data dependence analysis for imperative programs by solving a monotone data flow system. Advantages of our method...
Formal methods, like Petri nets, provide a means to analyse BPEL processes, detecting weaknesses and errors in the process model already at design-time. However, in most approaches proposed so far, the analysis is restricted to the control flow only. Analysing quality properties of BPEL processes might therefore yield false-negative results. In this paper, we are presenting an enhanced BPEL to Petri...
The Business Process Execution Language for Web Services WS-BPEL provides an technology to aggregate encapsulated functionalities for defining high-value Web services. For a distributed application in a B2B interaction, the partners simply need to expose their provided functionality as BPEL processes and compose them. Verifying such distributed web service based systems has been a huge topic in the...
Bestehende Lsungen zum Transport von mobilem Code lassen sich in drei Kategorien aufteilen: virtuelle Maschinen, baumorientierte Techniken und beweisbertragende Anstze. Wir beschreiben einen neuen, vierten Ansatz, inhrent sichere bertragungsformate und stellen unser SafeTSA-Projekt vor, welches diesen Ansatz validiert.
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