1. 2015-10-7 Software lifecycle support and management system for safety-related signalling systems Lei Chen Research institute of general technology Beijing National Railway Design and Research Institute of Signal and Communication Co. Ltd. 2015-10-7

2. INTRODUCTION Major challenges Task analysis approach The software lifecycle support and management system for safety-related signalling system The architecture of SwSLMS Key innovations Trial use Conclusion 2015-10-7

3. MAJOR CHALLENGES Demanding project schedule and high RAMS requirement Coordination of different roles Information explosion and information islands Development assistance Time consuming testing Knowledge share and reuse 2015-10-7

4. TASK ANALYSIS APPROACH 2015-10-7 EN50128CRSCD

5. TASK ANALYSIS APPROACH AttributeContents Action No.22.1.1.4 Pre-actions22.1.1.1, 22.1.1.2 Needed information DOORS Module URL and baseline number Word document version number, SVN URL and Revision Effected actions22.1.2.* Who’s responsibleThe writer of the document Done automatically by computer?No, human Non-conformities27 non-conformities for word and DOORS information mismatch or leave out in CM audit in R&D centre Can be done by computerYes 2015-10-7

6. The architecture of SwSLMS 2015-10-7

7. Key innovations Quality gate control UUM Access and role control 2015-10-7

8. Key innovations Information fusion 2015-10-7

9. Key innovations Development assistance Collaboration development tool Code completion tool Instant code rules check-up tool Covered 60% of the coding standards and coding style requirements Cross compile tool and debugger 2015-10-7

10. Key innovations Automatic testing 2015-10-7

11. Key innovations Component based knowledge base A new concept of COMPONENT software requirements interfaces, designs codes, test cases test scripts test records relevant documents 2015-10-7

12. Trial use Zone control certre(ZC) Software test stage Functional test cases: 694 One round of testing Original: 20 test cases per day per person, totally 35 man- day SwSLMS: 8 machine hours 2015-10-7

13. CONCLUSION Fully compliant with the new EN50128. Tentative effort to solve the contradiction of limited time of a project and high RAMS performance requirements Based on human factor study and task analysis Positive comments on SwSLMS 2015-10-7

14. Contact Details: Tel:+86 1051865482 Fax:+86 1051846162 Email:cl@crscd.com.cncl@crscd.com.cn Thank you for your attention!