| Topic |
Number of papers |
% |
| GORE |
24 |
30.38 |
| Design/Software Architecture |
17 |
21.52 |
| Behavioral models |
11 |
13.92 |
| MDD |
11 |
13.92 |
| SPL or Feature Models or Variability |
11 |
13.92 |
| Use Cases or Scenarios |
11 |
13.92 |
| NFR |
10 |
12.66 |
| Traceability |
9 |
11.39 |
| V&V |
9 |
11.39 |
| Aspects |
8 |
10.13 |
| Business Process |
8 |
10.13 |
| Requirements Analysis |
8 |
10.13 |
| UML |
8 |
10.13 |
| Natural Language |
7 |
8.86 |
| Tools |
6 |
7.59 |
| AHP |
5 |
6.33 |
| Security |
5 |
6.33 |
| Stakeholders’ Preferences |
5 |
6.33 |
| Elicitation |
4 |
5.06 |
| Domain knowledge/Analysis |
3 |
3.80 |
| Problem frames |
3 |
3.80 |
| Quality |
3 |
3.80 |
| Software Modularization |
3 |
3.80 |
| Usability |
3 |
3.80 |
| Embedded or Context-sensitive Systems |
2 |
2.53 |
| Empirical Studies |
2 |
2.53 |
| Ontology or Conceptual Models |
2 |
2.53 |
| Reuse |
2 |
2.53 |
| Semantics |
2 |
2.53 |
| Transparency |
2 |
2.53 |
| Agents |
1 |
1.27 |
| Algorithms |
1 |
1.27 |
| Configuration management |
1 |
1.27 |
| Creativity |
1 |
1.27 |
| Data abstractions |
1 |
1.27 |
| Technology transfer |
1 |
1.27 |
| Computer-supported collaborative work |
1 |
1.27 |
| Maintenance |
1 |
1.27 |
