With the increasing maturity of the cloud computing market, specifically in the Infrastructure as a Service (IaaS) domain, adequate pricing of services has become a crucial success factor for providers. In this work, we take a threefold approach to examine the current situation concerning pricing in the IaaS market. Based on an initial literature review, we find that pay-as-you-go pricing is pe...

Cloud computing data centres are emerging as new candidates for replacing traditional data centres. Cloud data centres are growing rapidly in both number and capacity to meet the increasing demands for highly-responsive computing and massive storage. Making the data centre more energy efficient is a necessary task. In this paper, we focus on the organisation’s internal Infrastructure as a Servi...

This article analyzed decision-making in terms of the adoption of public cloud computing and its determinants in the context of e-government. The authors proposed a theoretical model and related hypotheses after reviewing the literature and combining technology adoption theory with IT decisionmaking authority theory. Then, they collected samples from 227 public sectors and tested hypotheses usi...

In this work we formulate strategic decision models describing when and how many reserved instances should be bought when outsourcing a workload to an Infrastructureas-a-Service (IaaS) provider. Current IaaS providers offer various pricing options for leasing computing resources. When decision makers are faced with the choice and most importantly with uneven workloads, the decision at which tim...

Elective surgical repair has traditionally been considered to be the treatment of choice for the exclusion of isolated iliac artery aneurysms (IAAs). Recently, endovascular repair has evolved as an alternative to surgical repair, especially in patients at high surgical risk. However, in the absence of sufficient proximal necks, iliac artery aneurysms are not suitable for direct deployment of a ...

Cloud Computing has caught the imagination of the CIOs across the world with rapid scalability being the most important feature of Cloud Computing, with very high degree of provisioning capability from the Cloud vendors in comparison to on premise IT infrastructure. It provides for the shift of spend from capital expenditure in IT budgets to a more flexible and manageable operating expenditure ...

Introducción. Según la Organización Mundial de Salud, en instituciones países desarrollo las infecciones nosocomiales podrían superar el 25%; Colombia, 2012 estas representaban 4.7% causas muerte según Secretaría Salud Bogotá. El Ministerio señaló a Antioquia como departamento con tasa más alta Infecciones Asociadas Atención (IAAS). Objetivo. Evaluar nivel conocimientos, actitudes y aptitudes I...

Infrastructure as a Service (IaaS) is one of the most significant and fastest growing fields in cloud computing. To efficiently use the resources of an IaaS cloud, several important factors such as performance, availability, and power consumption need to be considered and evaluated carefully. Evaluation of these metrics is essential for cost-benefit prediction and quantification of different st...

To solve the cloud computing resource scheduling problem in IaaS platform, a scheduling model based on ant colony algorithm was proposed. In this model, pheromone changes dynamically according to the best route searched by ants. This model automatically updates pheromones and guides ants to search the global best route. Experiment results show that the proposed model is of better ability in ene...