Critical systems are complex and become more and more configurable. Assuring their behavior and their safety level requires to validate the consistency of several hundreds of thousands of values of configuration data. These validation tasks, particularly tedious and expensive, are often subject to very tight schedule as they are performed in the final phase of development.
OVADO2® offers an innovative approach to data validation based on the separation of the validation tool from the properties to validate.
The modeling team formalizes unambiguously the properties identified by domain experts.
Using this set of properties, OVADO2® checks automatically data conformity. The non-compliance of a data set is characterized by the extraction of counterexamples.
In order to gain in quality and development time, OVADO2® can now generate data using a formal model. With the appropriate process, it is possible to use OVADO2® at a T3 level for SIL4 and thus gain in quality, time and cost for data production. Indeed, a significant factorization of modelling work between the validation and generation activities allows to quickly converge towards valid data at the smaller expense of reinforced verification of this factorization.
Formal validation of configuration data is recommended by some safety
standards and is an integral part of the system or software validation
OVADO2® is qualified for T2 SIL4 use. It fully complies with the requirements of the EN 50128:2011 standard.
OVADO2® can be used as a T3 tool for SIL4 with the appropriate process.
OVADO® has been used by RATP in double-checking activities for Paris subway lines L1, L3, L4, L5, L6, L9, L10, L14, etc. The OVADO2® version, qualified for use as T2 SIL4, has been used successfully by Systerel for validating Paris L13 data.
It was used to generate and validate data for ALSTOM for Paris subway lines L6 and L10.
Originally designed for the railway sector, this tool suits industrial projects using configuration data. It may be used in various sectors such as the aeronautics, space, defense, automotive, health or bank sectors.
Among all companies trusting us we can name: ALSTOM, CNES, THALES, etc.
OVADO2® is based on open source software, most notably the Eclipse and Rodin platforms, without which its development would not have been possible.
OVADO2® is also based on the ProB model checker.
We would like to thank here all the contributors to OVADO2®.