Reliability 51 Computer systems 49 Fault-tolerant computing 14 Computer networks 13 Evaluation 9 Computer architecture 8 Computer software 7 Electronic digital computers 7 Computer security 6 Trust 5 Monitoring 4 Safety measures 4 Avionics 3 Electronic commerce 3 Security measures 3 Access control 2 Computer engineering 2 Computers 2 Development 2 Electronic apparatus and appliances 2 Electronic systems 2 Embedded computer systems 2 Fault location (Engineering) 2 Mathematical models 2 Reliability (Engineering) 2 Software architecture 2 System failures (Engineering) 2 Testing 2 Web services 2 Congresses 1