The assignment of scheduling parameters under the Earliest Deadline First (EDF) scheduling policy is trivial in single processor systems because deadlines are used directly. However, it is still difficult to find a feasible deadline assignment for EDF distributed systems when the utilization levels of the CPUs and communication networks are pushed near to their limits. Most distributed applicat...

ÐIn a hard real-time system, it is assumed that no deadline is missed, whereas, in a soft or firm real-time system, deadlines can be missed, although this usually happens in a nonpredictable way. However, most hard real-time systems could miss some deadlines provided that it happens in a known and predictable way. Also, adding predictability on the pattern of missed deadlines for soft and firm ...

In B2B contract enactment, cooperation should be taken into account when modeling contractual commitments through obligations. We advocate a directed deadline obligation approach, taking inspiration on international legislation over trade procedures. Our proposal is based on authorizations granted in specific states of an obligation lifecycle model. Flexible deadlines provide an additional leve...

Anagency framework is used to model the behavior of software developers as they weigh concerns about product quality against concerns about missing individual task deadlines. Developers who care about quality but fear the career impact of missed deadlines may take “shortcuts.” Managers sometimes attempt to reduce this risk via their deadline-setting policies; a common method involves adding sla...

We provide a conceptual analysis of several kinds of deadlines, represented in Temporal Modal Defeasible Logic. The paper presents a typology of deadlines, based on the following parameters: deontic operator, maintenance or achievement, presence or absence of sanctions, and persistence after the deadline. The deadline types are illustrated by a set of examples.