We design an interactive stack in the setting of stream processing functions. The design passes through a series of abstraction levels relating different views of the stack component. The external view describes the component's input/output behaviour, the transition view captures the stepwise transitions, and the state-based view discloses the internal structure. The different descriptions can systematically be derived from the input/output behaviour following sound transformation rules. The case study exemplifies general methods for the specification and refinement of interactive components.
Original languageEnglish
JournalTransactions on Systems
Issue number1
Pages (from-to)296-302
Number of pages7
Publication statusPublished - 01.01.2002


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