74,790 research outputs found
Trust Management Model for Cloud Computing Environment
Software as a service or (SaaS) is a new software development and deployment
paradigm over the cloud and offers Information Technology services dynamically
as "on-demand" basis over the internet. Trust is one of the fundamental
security concepts on storing and delivering such services. In general, trust
factors are integrated into such existent security frameworks in order to add a
security level to entities collaborations through the trust relationship.
However, deploying trust factor in the secured cloud environment are more
complex engineering task due to the existence of heterogeneous types of service
providers and consumers. In this paper, a formal trust management model has
been introduced to manage the trust and its properties for SaaS in cloud
computing environment. The model is capable to represent the direct trust,
recommended trust, reputation etc. formally. For the analysis of the trust
properties in the cloud environment, the proposed approach estimates the trust
value and uncertainty of each peer by computing decay function, number of
positive interactions, reputation factor and satisfaction level for the
collected information.Comment: 5 Pages, 2 Figures, Conferenc
Future bathroom: A study of user-centred design principles affecting usability, safety and satisfaction in bathrooms for people living with disabilities
Research and development work relating to assistive technology
2010-11 (Department of Health)
Presented to Parliament pursuant to Section 22 of the Chronically Sick and Disabled Persons Act 197
An Assessment of Health Care Safety Net Services in Seven Metropolitan Atlanta Counties
The Georgia Health Policy Center (GHPC), the Centers for Disease Control and Prevention (CDC) and the National Network of Public Health Institutes began collaboration in the summer of 2007 on a project designed to establish a framework for public health to help inform the health reform debate. The partnership set out to broaden the health reform conversation to include health promotion, health improvement, and disease prevention. The effort included background research, focus groups, key interviews with internal and external stakeholders from local, state, and national groups, and additional convenings of local, state, and national partners. This report highlights opportunities for public health to bridge the different levels of health reform and create strategies and policies that could be implemented on each level
The Value of User-Visible Internet Cryptography
Cryptographic mechanisms are used in a wide range of applications, including
email clients, web browsers, document and asset management systems, where
typical users are not cryptography experts. A number of empirical studies have
demonstrated that explicit, user-visible cryptographic mechanisms are not
widely used by non-expert users, and as a result arguments have been made that
cryptographic mechanisms need to be better hidden or embedded in end-user
processes and tools. Other mechanisms, such as HTTPS, have cryptography
built-in and only become visible to the user when a dialogue appears due to a
(potential) problem. This paper surveys deployed and potential technologies in
use, examines the social and legal context of broad classes of users, and from
there, assesses the value and issues for those users
Mobile Water Payment Innovations in Urban Africa
This study assess mobile payment options for water service bills in four urban African contexts. Systems are evaluated to identify differences in adoption levels and motivations and barriers to uptake; how costs are distributed among water service providers, mobile network operators, and customers; and mobile payment applications and designs. Data was collected through interviews with water service providers, mobile network operators and service regulators, as well as a household survey in one of the study regions and the aid of World Bank and national water regulator data. Mobile water payment adoption rates were low, but there was also evidence that key barriers such as limited awareness, lack of physical proof of payment, and high transaction tariffs, could be overcome. Increased mobile water payment is found to result in considerable savings in time and money for consumers, revenue for mobile network operators, and perhaps most importantly, strengthened finances for water service providers to improve their ability to provide sustainable service
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