APPENDIX 1: SDL diagrams for TRAKLA-EDIT Representations
1. PROCESS: ACTION
2. PROCESS: INSERT NEW REPRESENTATION FOR DS
3. PROCESS: CHANGE FONT
4. PROCESS: GET REPRESENTATION PANEL
5. PROCESS: GET SUPPORTED REPRESENTATIONS
6. PROCESS: GET DSDL
7. PROCESS: GET DS DSDL
References: SDL building blocks