This paper describes a high-level approach for our improved Cloud Computing Adoption Framework update 1 (CCAF 1.1), which emphasizes on the security policies, recommendations, techniques and technologies to be updated in our framework. Motivation, background, security overview and recent attack methods have been discussed. We propose a solution based on arising needs to improve current Cloud se...

Abstract. Satellite-based cloud base and top height (CBH CTH) geometrical thickness (CGT) are validated against ground-based lidar measurements provide new scientific insights. The satellite done by the Cloud-Aerosol Lidar Infrared Pathfinder Satellite Observation (CALIPSO). retrieval methodology is built on 333 m resolution low-level water data obtained from Vertical Feature Mask product of CA...

For the present efforts in dynamic IT outsourcing environments like Grid or Cloud computing security and trust are ongoing issues. SLAs are a proved remedy to build up trust in outsourcing relations. Therefore, it is necessary to determine whether SLAs can improve trust from the perspective of the outsourcing customer by integration of security measures. The conducted survey indicates that cust...

Elasticity of cloud computing environments provides an economic incentive for automatic resource allocation of stateful systems running in the cloud. However, these systems have to meet strict performance Service-Level Objectives (SLOs) expressed using upper percentiles of request latency, such as the 99th. Such latency measurements are very noisy, which complicates the design of the dynamic re...

With the success of Cloud computing, more and more websites have been moved to cloud platforms. The elasticity and high availability of cloud solutions are attractive features for hosting web applications. In particular, the elasticity is supported through trigger-based provisioning systems that dynamically add/release resources when certain conditions are met. However, when dealing with websit...

The new possibility of accessing an infinite pool of computational resources at a drastically reduced price has made cloud computing popular. With the increase in its adoption and unpredictability of workload, cloud providers are faced with the problem of meeting their service level agreement (SLA) claims as demonstrated by large vendors such as Amazon and Google. Therefore, users of cloud reso...

In this paper we are introducing a framework towards the inclusion of Green IT metrics as part of service level agreements for future Grids and Clouds. As part of this effort we need to revisit Green IT metrics and proxies that we consider optimizing against in order to develop GreenIT as a Services (GaaS) that can be reused as part of a Software as a Serice (SaaS) and Infrastructure Infrastruc...

Cloud computing is an emerging platform of service computing designed for swift and dynamic delivery of assured computing resources. Cloud computing provide Service-Level Agreements (SLAs) for guaranteed uptime availability for enabling convenient and on-demand network access to the distributed and shared computing resources. Though the cloud computing paradigm holds its potential status in the...

Cloud based development is a challenging task for several software engineering projects, especially for those which need change along with reusability. The present scenario of cloud computing is allowing new professional models to use agile software development. The expected upcoming trend of computing is assumed to be cloud computing as it ensures a lot of payback like no principal outflow, sp...

Cloud computing is a network based environment where resources, information and software’s are shared and provided to the users according to their demands. Though cloud computing is being widely used in various fields, it has certain drawbacks. Security issue is a concern in cloud computing. The confidentiality and data integrity should be guaranteed to the user who is putting their data over t...