Cloud computing brings advancement in the field of information technology. Cloud computing is based on several service models such as SaaS, PaaS, NaaS, DbaaS, IaaS and many more. In order to make clear the essential of cloud computing, we propose the characteristics of these service models which distinguish cloud computing from other research areas .These service models are compared from variou...

quality of service (qos) is an important issue in the design and management of web service composition. qos in web services consists of various non-functional factors, such as execution cost, execution time, availability, successful execution rate, and security. in recent years, the number of available web services has proliferated, and then offered the same services increasingly. the same web ...

service oriented enterprises (soes) are subject to constant change and variation. in this paper, the changes are considered from an economic perspective based on service culture notion. once a change is implemented, the costs of some member services may increase, whereas the costs of some other services may reduce. we construct a game theoretic model trying to capture the possible conflicting i...

vii 1 Survivable System Concepts 1 2 Service Traces for Survivability Specification 5 2.1 Essential-Service Workflows 5 2.2 Essential-Service Traces 6 2.3 Relational Specification of Trace Components 6 2.4 Computational Survivability 7 3 Intrusion Traces for Adverse Environment Specification 9 3.1 Intruder Workflows Organized Into Attack Trees 10 3.2 Attack Patterns Organized Into Attack Profil...

BACKGROUND A public health response is essential to meet the multidimensional needs of patients and families affected by HIV disease in sub-Saharan Africa. In order to appraise current provision of HIV care and support in East Africa, and to provide evidence-based direction to future care programming, and Public Health Evaluation was commissioned by the PEPFAR programme of the US Government. ...

We examined how an Australian police union boasting more than 99 percent density has resisted the trend of decline. The union historically eschewed arbitration and instead used political connections to achieve goals. The environment radically changed with a major corruption report and the introduction of new managerialist techniques. The union reconfigured relationships with management and gove...

257 Consultation liaison psychiatry (CLP)-also known as psychosomatic medicine-is the psychiatric subspecialty that focuses on the diagnosis and treatment of psychiatric disorders/difficulties in complex medically ill patients. " Complex medically ill " 1 are patients with active medical, neurological, obstetrical or surgical condition(s) or symptoms, who also meet one of the following criteria...

This paper presents a metamodel that addresses service system design and innovation by traversing and integrating three essential layers, service activities, service systems, and value constellations. The metamodel's approach to service systems as service-in-operation is an alternative to another currently used approach that views service systems as systems of economic exchange. The metamodel a...