# Timed Default Concurrent Constraint Programming

@article{Saraswat1996TimedDC, title={Timed Default Concurrent Constraint Programming}, author={Vijay A. Saraswat and Radha Jagadeesan and Vineet Gupta}, journal={J. Symb. Comput.}, year={1996}, volume={22}, pages={475-520} }

Abstract Synchronous programming (Berry, 1989) is a powerful approach to programming reactive systems. Following the idea that “processes are relations extended over time” (Abramsky, 1993), we propose a simple but powerful model for timed, determinate computation, extending the closure-operator model for untimed concurrent constraint programming (CCP). In Saraswat et al . (1994a) we had proposed a model for this called tcc—here we extend the model of tcc to express strong time-outs: if an event…

## 137 Citations

### Reactive Constraint Programming

- Computer Science
- 2000

An extension of tcc that allows the specification of nondeterministic computation, called the ntcc model, which is based upon ideas from both concurrent constraint programming and CCS-like models and claims the applicability of ntCC by modeling reactive system examples of RCX controllers.

### Timed soft concurrent constraint programs: An interleaved and a parallel approach

- Computer ScienceTheory and Practice of Logic Programming
- 2014

This paper provides a language to describe the agents' behavior, together with its operational and denotational semantics, and describes a version for their interleaving on a single processor (with maximal parallelism for time elapsing).

### Temporal Concurrent Constraint Programming: Denotation, Logic and Applications

- Computer ScienceNord. J. Comput.
- 2002

This work presents a model of temporal concurrent constraint programming which adds to tcc the capability of modeling asynchronous and nondeterministic timed behavior, and calls this tcc extension the ntcc calculus, which gives a denotational semantics for the strongest-postcondition of ntCC processes.

### An Assertion language for slicing Constraint Logic Languages

- Computer ScienceLOPSTR
- 2018

This paper provides an assertion language suitable for both, CCP and CLP, which allows the user to specify some properties of the computations in her program and shows that the framework can be integrated with the previous semi-automatic one, giving the user more choices and flexibility.

### A Timed Concurrent Constraint Language

- Computer ScienceInf. Comput.
- 2000

It is shown that tccp is strictly more expressive than ccpm which, in its turn, is strictlyMore expressive than ccp .

### An Abstract Interpretation Framework for Verification of Timed Concurrent Constraint Languages

- Computer ScienceTheory Pract. Log. Program.
- 2013

The Timed Concurrent Constrain programming (tccp in short) is a concurrent logic language obtained by extending the cc paradigm with the notion of time and a suitable mechanism to model time-outs and preemptions and is a suitable language to model both concurrent and reactive systems.

### Time Limited Model Checking

- Computer Science
- 2001

An automatic transformation from Hybrid cc Structures to linear hybrid automata is presented, and thus standard model checkers working on timed automata, such as HyTech, can be used in order to verify properties of hybrid systems.

### Timed Soft Concurrent Constraint Programs

- Computer ScienceCOORDINATION
- 2008

This paper provides a language to describe the agents behavior, together with its operational and denotational semantics, for which it is proved the compositionality and correctness properties.

### A Proof Theoretic Study of Soft Concurrent Constraint Programming

- Computer ScienceTheory and Practice of Logic Programming
- 2014

This work obtains a CCP language where agents can tell and ask soft constraints and proves that the language in (1) has a strong connection with logic, and gives a proof theoretical meaning to soft constraints: they can be defined as formulas in a suitable fragment of ILL with subexponentials (SELL) where subexp onentials are interpreted as preferences.

### Declarative Priority in a Concurrent Logic Language ON

- Computer ScienceICLP
- 1999

A model of priority is defined and some properties of the model are proved, and a concurrent logic language called ON is designed based on the theoretical framework and some prominent characteristics that are embodied in sample programs written in ON are discussed.

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