Recovery and Its Quality in Multilayer Networks

Business Continuity Management & Disaster Recovery Capabilities in Saudi Arabia ICT Businesses

“…In other words, the demand of BCM should be derived from the core requirements regarding critical processes in a company. Given that each process has unique processes, then each company should have a BCM/DR program tailored along its processes and goals [22,23].…”

“…Business impact analysis (BIA) is a key part of a business continuity management system (BCMS) whereby an entity's key products or services alongside with the critical functions and their BC related metrics [23]. That is, the minimum business continuity objective (MBCO) and the maximum tolerable period of disruption (MTPD) are determined.…”

Energy-efficiency versus resilience: risk awareness view on dimensioning of optical networks with a sleep mode

“…While the methods and protocols for network resilience, described for instance in [20,55,60], are not a new topic, a business-oriented approach to resilient network design has not been studied in depth, and many problems remain. Risk had originally been dealt with in two types of industries: financial (where investment portfolios are being selected) and technological (where failures jeopardize human safety or societal welfare).…”

“…From the risk perspective, these methods offer little improvement (with the existing technological solutions, the switching time is negligible); therefore, they are clearly dominated as being the most costly. Other methods can be applied in practice [20]; however, here we focus only on those that can be modeled in a compact way, and we show that even with this small set of options, non-trivial results can be obtained. We assume that the energy profile is modeled with the concave square root function of a load on a link.…”

“…They operate in various ways (with different levels of sharing, scope, etc. [20]) and result in different parameters, such as resilience (i.e., survivability to random failures) related to client needs. They also incur increased capital expenditure (CAPEX) and operational expenditure (OPEX) costs, since in order to bypass fault-affected elements, it is necessary to use backup resources.…”