| Subject | English | Spanish |
| gen. | critical R&D task | tarea crítica de I+D |
| comp., MS | critical task | tarea crítica (A task that must be completed on schedule for the project to finish on time. If a critical task is delayed, the project completion date might also be delayed. A series of critical tasks makes up a project's critical path) |
| IT, dat.proc. | non-critical task | tarea no crítica |