1. 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.
2018/5/9

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
2018/5/9

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
2018/5/9

4. TASK ANALYSIS APPROACH
EN50128
CRSCD
2018/5/9

5. TASK ANALYSIS APPROACH
Attribute
Contents
Action No.
Pre-actions ,
Needed information
DOORS Module URL and baseline number
Word document version number, SVN URL and Revision
Effected actions *
Who’s responsible
The writer of the document
Done automatically by computer?
No, human
Non-conformities
27 non-conformities for word and DOORS information mismatch or leave out in CM audit in R&D centre
Can be done by computer
Yes
2018/5/9

6. The architecture of SwSLMS
2018/5/9

7. Key innovations Quality gate control UUM Access and role control
2018/5/9

8. Key innovations
Information fusion
2018/5/9

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
2018/5/9

10. Key innovations
Automatic testing
2018/5/9

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
2018/5/9

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
2018/5/9

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
2018/5/9

14. Thank you for your attention!
Contact Details:
Tel:
Fax:
2018/5/9