Download PDF by Frédéric Boniol, Virginie Wiels, Yamine Ait Ameur,: ABZ 2014: The Landing Gear Case Study: Case Study Track,

By Frédéric Boniol, Virginie Wiels, Yamine Ait Ameur, Klaus-Dieter Schewe (eds.)

ISBN-10: 331907511X

ISBN-13: 9783319075112

ISBN-10: 3319075128

ISBN-13: 9783319075129

This quantity includes complaints of the Case research tune, held on the 4th foreign convention, ABZ 2014, in Toulouse, France, in June 2014. The eleven papers offered have been rigorously reviewed and chosen from a number of submissions. They use diversified formal recommendations: B, ASM, Fiacre. additionally they suggest other forms of verification reminiscent of evidence, version checking, attempt iteration, run-time tracking, and simulation.

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Additional info for ABZ 2014: The Landing Gear Case Study: Case Study Track, Held at the 4th International Conference on Abstract State Machines, Alloy, B, TLA, VDM, and Z, Toulouse, France, June 2-6, 2014. Proceedings

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The model advisor signals that functions cylindersDoors and cylindersGears are useless, since they are never used (never read). Indeed, we have added the cylinders only for documentation purposes, but they could be omitted from the model, since their status is given by a straightforward relation with the status of the doors/gears. Correctness of the Model Refinement. Let us call M the ground model LandingGearSystemGround and M ¦ the refined model LandingGearSystemWithCylAndValves. At M -level, the locations of interest are those for functions doors and gears, which have corresponding locations for the same function names at level M ¦ (since the refinement simply extends the signature of machine M ).

It is worth noticing it, as it is usually not the case in similar industrial systems. Their description of the aircraft landing gear is a prerequisite for the reading of this paper: we are not going to repeat it here. However, we decided to remove some parts of their case study, not because we found them to be not important, nor because we do no know how to model them, rather because we found that the modeling of them will not bring anything new with regards to some other parts we cover. In section 4 we make precise which parts have been omitted in our models.

The retraction sequence terminates with the doors CLOSED and the gears RETRACTED. The outgoing sequence behaves similarly. Note that, a retraction (resp. an outgoing) sequence can be always interrupted by switching the value of the handle; in this case, an outgoing (resp. a retraction) sequence begins, starting from the status of the doors and the gears reached in the previous sequence. , they are EXTENDED or RETRACTED). Model Review. As first validation activity, we have checked the model with the model advisor.

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ABZ 2014: The Landing Gear Case Study: Case Study Track, Held at the 4th International Conference on Abstract State Machines, Alloy, B, TLA, VDM, and Z, Toulouse, France, June 2-6, 2014. Proceedings by Frédéric Boniol, Virginie Wiels, Yamine Ait Ameur, Klaus-Dieter Schewe (eds.)


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