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Static Analysis on Railway Vehicle On-board Software - Aims and Achievements

ES_PASS Workshop Toulouse, France, February 5th, 2009. Static Analysis on Railway Vehicle On-board Software - Aims and Achievements. Situation. Software controls train safety directly: Brakes Doors Traction. Problems. Functional testing requires huge efforts. Safety Level Identification.

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Static Analysis on Railway Vehicle On-board Software - Aims and Achievements

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  1. ES_PASS WorkshopToulouse, France, February 5th, 2009 Static Analysis on Railway Vehicle On-board Software - Aims and Achievements

  2. Situation • Software controls train safety directly: • Brakes • Doors • Traction • ...

  3. Problems • Functional testing requires huge efforts

  4. Safety Level Identification AssessmentReport Verification Verification Verification Verification Requirements Validation Hardware w/ Software Architecture Integration Test Integrated Software Design Unit Test Software Modules IF THEN ELSE IF THEN ELSE IF THEN ELSE Code The EN 50128 Approach

  5. Expectation wrt Static Analysis Better investigation of Functional Properties Proof instead of assumption “Safe” instead of “more” or “less” safe

  6. Aims for a better Software Verification • To prove safe function of software • To prove it automatically • To get complete proof • To simply re-prove software after alterations See FIRST Slides for Achievements

  7. Vielen Dank für Ihre Aufmerksamkeit IFB Institut für Bahntechnik GmbH Dipl.-Ing. Jürgen Busse Carnotstraße 6, 10587 Berlin Deutschland E-Mail: jb@bahntechnik.de Tel.: 0049 / 30 / 399924 – 56 Fax: 0049 / 30 / 399924 – 90

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