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We present Hybrid Input/Output Automata (HIOA) models as a basis for the design and analysis of a class of composable conveyor systems. These conveyor systems are realized by composing instances of two kinds of units, namely segments and turns. A microcontroller, which is physically wired to the sensors and actuators on the unit, regulates the local operations at the unit level. Microcontrollers that...
We address the problem of optimizing mediator-based service composition where the services and the desired composition (goal) functionality are represented as i/o automata with loops. The objective of optimization is to minimize the costs of communications and computations necessary to realize the goal from the existing services. We develop an algorithm to compute the minimum cost of an automaton...
We study the problem of synthesis of a choreographer in Web service composition for a given set of services and a goal. Services and goal are represented using I/O automata which can succinctly and precisely describe the interfaces of the services. Our technique considers existence and synthesis of two types of the choreographers: a simple choreographer capable of only relaying outputs from one service...
Timed I/O Automata (TIOA) is a mathematical framework for modeling and verification of distributed systems that involve discrete and continuous dynamics. TIOA can be used for example, to model a real-time software component controlling a physical process. The TIOA model is sufficiently general to subsume other models in use for timed systems. The TIOA toolkit, currently under development, is aimed...
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