This book gives eGovernment systems custodians guidelines on how to design an integration portal for government organizations in a semi-automated and secure way. The book presents a new approach that pursue main challenges to these systems and provides a complete solution to help overcoming these challenges. The solution takes the shape of a layered framework where each layer is counted as a prerequisite for the next one. Access to different resources that are offered by these systems should be controlled in a secure and efficient manner. The solution gives a customized type of access control that can comply with the access requirements to these resources. Another challenge that the solution tries to domesticate is automating service level agreements that are designed with each web service. The book focuses on giving a solution that can help accelerating the agreement and negotiation processes between the provider and the consumer of the web service. In general, the solution provided by this book can help eGovernment initiatives to move faster towards smart government systems where these systems should work in a coherent and reliable way to provide smart responses to its users.
In recent time a new trend can be recognized on the Internet in general and especially in learning environments by moving away from monolithic one-provider-fits-all to a combinatorial mixing pieces-together approach. Mashing-up stands for the re-use, re-combination, and re-organisation of small software artifacts of clearly defined functionality (so-called widgets). Subsequently, mashed-up learning systems describe the idea of highly customizable environments shifting substantial personalization possibilities from administrators to the end-users (learners). This shift has significant impacts on efficient data communication strategies of learning management systems. This book presents a technical solution for an inter-widget communication in mash-up personal learning environments, enabling the possibility of different data send and receive strategies, such as, cross-domain push/pull mechanisms or user-centered notification settings and, thus, enabling to model learner workflows in distributed environments. It explains the technical background of the widget concept and why inter-widget communication is beneficial, especially in the area of e-learning. The outcome of this book are new methods and corresponding open-source prototype software artifacts. A proof-of-concept pedagogical use-case of a lifelong learner validates the approach.
The present book deals with how to use the precious wireless resources that are usually wasted by under-utilization of networks. We have been particularly interested to all resources that can be used in an opportunistic fashion using different technologies. We have designed new schemes for better and more efficient use of wireless systems by providing mathematical frameworks. In this sense we focused on cognitive communication networks, where a cellular service provider can reserve a portion of its resources to secondary users or virtual suppliers. Delay tolerant networks are used as an alternative to the significant increase of the traffic load in cellular networks. In areas where the network infrastructure implementation is geographically difficult, the use of ad-hoc networks seems an appropriate solution. Indeed, we have developed a new analytical model of IEEE 802.11e used in this type of network protocol.
Revision with unchanged content. The last few years have experienced a steady growth in research institutions interest in developing research projects that involve more than one insti tution s computing resources - forming virtual organizations. The goal of any virtual organization is to provide member institutions with an interoperable, easy to use and secure research environment. Shibboleth was one of the pre mier choices of infrastructure to be used to create collaborative inter-institu tional research environments as it provides a coherent architecture to securely share computing resources across multiple institutions without the need for individualized user credentials for each shared resource. Some of the prob lems that Shibboleth encountered in practice deal with its distributed authentication and authorization mechanisms and its user data accessability design. This work addresses these issues and provides a solution that allows for fine-grained authorization services in any virtual organization. We pro pose an extension to the Shibboleth design by separating the definition, management, and usage of the user s virtual organization entitlements from the identity provider. This book is addressed to professionals in Informa tionTechnology, researchers and students in Distributed Systems, Networking and Security.
Health Information System (HIS) is widely recognized as a technology enabler which improves patient care coordination, enhances provider productivity and facilitates knowledge management activities. A multitude of stand-alone administrative and clinical management systems exist, but their true value is realized when they become an integrated electronic health record solution that can address information requirements across multiple functions. In Malawi, the national Health Management Information System is integrated while at the district level there are stand-alone systems. Stand-alone systems are common in most countries and are a major cause of fragmentation especially in developing countries. Evidence shows that information derived from fragmented systems is untimely and not effective for management use. To address this issue, organisations worldwide are collaborating to integrate stand-alone systems into one. This book is based on a study of two significant systems at the district level, i.e. District Health Information System and drug Logistics Management Information System. The objective was to assess the implications of their integration for improved healthcare services.
The goal of the grid computing paradigm is to make computer power as easy to access as an electrical power grid. Unlike the power grid, the computer grid uses remote resources located at a service provider. Malicious users can abuse the provided resources, which not only affects their own systems but also those of the provider and others. As a consequence, most commercial customers are not convinced that their intellectual property in the form of software and data is protected in the grid. This book proposes a novel infrastructural security solution that advances the concept of virtualized grid computing. This includes the description of a software that transforms a traditional grid into a virtualized grid including security measures like a grid demilitarized zone, dynamic firewalls and several solutions to protect the grid node itself.
Consider a pay TV provider serving countless users, who concurrently want to watch a live transmission of a soccer world championship. How can the provider restrict access to authorized users? Conventional access control systems, where users are supposed to log in and authenticate themselves, will likely be overloaded. This book introduces Electronic Subscriptions as a practicable solution for addressing the mentioned problem by using cryptographic primitives. It provides a solid theoretical background and gives practical solutions for such scenarios. Several questions are investigated, among others: How to ensure that only legitimate users are addressed? How to limit the validity of authorizations (e.g. year, month etc.)? How to revoke authorized users?
Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Validus DC Systems is a provider of fully integrated Direct Current (DC) power infrastructures for datacenters and telecommunications facilities headquartered in Brookfield, Connecticut in the United States. The company''s power infrastructure is the first-ever end-to-end DC power solution for mission critical facilities and high-density data centers. Validus was founded in 2002 when Data Support Associates, Inc. (DSA), a company co-founded by Validus DC Systems'' founder and CEO, Rudy Kraus, provided $4 million of seed capital to start the company and begin development of Validus'' end-to-end DC-power solution for data centers. The Validus DC solution was developed in partnership with Dr. Marcel Gaudreau, former head of Massachusetts Institute of Technology''s Plasma Science and Fusion Center. The final offering is the result of 5 years of development and more than 100,000 team hours.
A growing, aging population, the rise to epidemic proportions of various chronic diseases, competing, often overlapping medical technologies, and of course, skyrocketing costs compounded by waste and inefficiency - these are just a few of the multifarious challenges currently facing healthcare delivery. Anunexpected source of solutions is being imported from the manufacturing sector: lean thinking.Lean Principles for Healthcare presents a conceptual framework, management principles, and practical tools for professionals tasked with designing and implementing modern, streamlined healthcare systems or overhauling faulty ones. Focusing on core components such as knowledge management, e-health, patient-centeredness, and collaborative care, chapters illustrate lean concepts in action across specialties (as diverse as nursing, urology, and emergency care) and around the globe. Extended case examples show health systems responding to consumer needs and provider realities with equal efficiency and effectiveness, and improved quality and patient outcomes. Further, contributors tackle the gamut of technological, medical, cultural, and business issues, among them:Initiatives of service-oriented architecture towards performance improvementAdapted lean thinking for emergency departmentsLean thinking in dementia care through smart assistive technologySupporting preventive healthcare with persuasive servicesValue stream mapping for lean healthcareA technology mediated solution to reduce healthcare disparities Geared toward both how lean ideas can be carried out and how they are being used successfully in the real world, Lean Principles for Healthcare not only brings expert knowledge to healthcare managers and health services researchers but to all who have an interest in superior healthcare delivery.