ex­pressg – Di­a­grams con­sist­ing of boxes, lines, and an­no­ta­tions

A Meta­Post pack­age pro­vid­ing fa­cil­i­ties to as­sist in draw­ing di­a­grams that con­sist of boxes, lines, and an­no­ta­tions. Par­tic­u­lar sup­port is pro­vided for cre­at­ing EXPRESS-G di­a­grams, for ex­am­ple IDEF1X, OMT, Sh­laer-Mel­lor, and NIAM di­a­grams. The pack­age may also be used to cre­ate UML and most other Box-Line-An­no­ta­tion charts, but not Gantt charts di­rectly.