Computer software Development 42 Testing 16 Quality control 9 Object-oriented programming (Computer science) 8 Management 7 Software engineering 7 Computers 5 Design 5 Information technology 5 Software patterns 5 System design 5 UML (Computer science) 5 Computer science 4 Electronic digital computers 4 Human-computer interaction 4 Object-oriented methods (Computer science) 4 Operating systems (Computers) 4 Reliability 4 Software architecture 4 System analysis 4 Verification 4 Web sites 4 C++ (Computer program language) 3 Computer programming 3 Digital libraries 3 Libraries 3 Patent laws and legislation 3 Agile software development 2 Application software 2