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Intelligent Environments (IE) are a very active area of research and a number of applications are currently being deployed in domains ranging from smart home to e-health and autonomous vehicles. In a number of cases, IE operate together with (or to support) humans, and it is therefore fundamental that IE are thoroughly verified. In this paper we present how a set of techniques and tools developed...
This paper deals with model checking problems with respect to LTL properties under fairness assumptions. We first present an efficient algorithm to deal with a fragment of fairness assumptions and then extend the algorithm to handle arbitrary ones. Notably, by making use of some syntactic transformations, our algorithm avoids constructing corresponding Büchi automata for the whole fairness assumptions,...
A model checking procedure, based on the recently introduced linear temporal logic LTL[e] framework, is proposed for the analysis of a class of safety specifications for the synthesis of discrete-event supervisory controllers. A restricted syntax is proposed for capturing specifications which, in our experience, are common in the design of control systems for manufacturing processes. Semantic models...
Service Level Agreements (SLAs) need to be monitored at runtime to assure that the Business Level Agreements (BLAs) / Business Level Objectives (BLOs) are indeed satisfied in the realized business workflow and allow the organization to adjust its business processes best to the environment. In this paper, we show how multiple SLAs specified on various observable attributes can be formally specified,...
Traditional Gödel completeness holds between finite proofs and infinite models over formulas of finite depth, where proofs and models are heterogeneous. Our purpose is to provide an interactive form of completeness between infinite proofs and infinite models over formulas of infinite depth (that include recursive types), where proofs and models are homogenous. We work on a nonlinear extension of...
Local policies represent security properties that are applied to (parts of) programs or services. They are amenable for developers since they provide for a full compositionality (through scope nesting), for a simple, automaton-like structure and for a direct enforcing through a corresponding execution monitor. Compliance w.r.t. local policies is statically verified against a safe over-approximation...
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