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“We were especially impressed by the automation of verification proofs, which will substantially reduce our costs, and by the level of support provided by Escher Technologies.”

Guy Mason
General Dynamics UK Ltd.
 

summary of benefits

The use of mathematics to define and verify the behaviour of software is called formal methods. Aerospace companies and other writers of critical software traditionally use formal methods to help ensure that the most vital parts of their software are dependable.

In past years, it has not been economic to apply formal methods to the development of non-critical software. The tools available required the developer to express specifications using mathematical notations and to assist in the theorem-proving process. Further, the semantics of the specification language were often far removed from the semantics of the programming languages used to write code, making it hard to relate the two languages.


Our tools have been designed from the outset to overcome these constraints, using automated reasoning and an easy-to-learn language. The initial learning curve is not as steep as with tradional formal methods. Rapid prototyping for simulation purposes is easy, and - should the initial requirements change - adapting to many requirements changes is fast due to the high level of the specifications. By comparison with earlier mathematically-based development methods, our tools are

  • easy to use
  • take up minimal developer time
  • enable both high productivity
  • AND high reliability
 
All these factors combine to give you reduced costs
 
 


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