Reply to Comments on "An Interval Logic for Real-Time System Specification'
IEEE Transactions on Software Engineering
Expressing and organizing real-time specification patterns via temporal logics
Journal of Systems and Software
QUACK: A Platform for the Quality of New Generation Integrated Embedded Systems
Electronic Notes in Theoretical Computer Science (ENTCS)
Validating Component Integration with C-TILCO
Electronic Notes in Theoretical Computer Science (ENTCS)
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Abstract: Temporal logics are typically used for the specification of real-time systems since they are capable of describing temporal constraints among events and actions: properties of invariance, precedence, periodicity, repeated occurrences, liveness and safety conditions, etc. This paper describes an evolution of the Temporal Interval Logic called TILCO. TILCO is based on time intervals and can concisely express temporal constraints with time bounds. In this paper, TILCO-X extension of TILCO is presented. TILCO-X proposes two new operators that strongly increase conciseness and readability of specifications to allow describing (i) the temporal ordering of events without distinction between past and future, and (ii) predicates depending on the number of occurrences of events in intervals. TILCO- X is capable to describe specifications by using a lower number of quantifications and of nesting levels between temporal operators. This paper also presents the semantics of TILCO-X and related examples showing the power of the model proposed in terms of conciseness.