Terms for subject Programming containing system responsibility

English	Russian
system responsibility	обязательство системы (ssn)
system responsibility model	модель обязательств системы (ssn)
the clerk still has a main job responsibility, and must have a plan in case the system fails to perform its part	Сохраняя за собой основную обязанность по работе, служащий должен иметь план на случай отказа системы (см. Writing Effective Use Cases by Alistair Cockburn 2001)