| Subject | English | French |
| gen. | critical R&D task | tâche critique de R&D |
| comp., MS | critical task | tâche critique (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 | tâche non critique |
| railw. | other crew members performing safety-critical tasks | autres personnels de bord assurant des tâches déterminantes pour la sécurité |