It is not an overstatement to say that the gap between software design and performance evaluation techniques has caused the misuse of the last ones by software engineers. The UML profile for schedulability, performance and time [13] arose from the intention to close both fields, software engineering and performance analysis. Nevertheless the gap remains, since it is difficult for software engin...

Software Performance Engineering is receiving increasing attention in today’s software dominated world. Compared to research work in performance evaluation in hardware and networks, this field is still in its nascent stage. Many methods have been proposed but majority of them are unable to adapt in the software development life-cycle dominated by professionals without substantial performance en...

The introduction of e-Health applications has not only brought benefits, but also raised serious concerns regarding security and privacy of health data. The increasing demands of accessing health data, highlighted critical questions and challenges concerning the confidentiality of electronic patient records and the efficiency of accessing these records. Therefore, the aim of this paper is to pr...

In this paper we study in what order a crawler should visit the URLs it has seen, in order to obtain more "important" pages first. Obtaining important pages rapidly can be very useful when a crawler cannot visit the entire Web in a reasonable amount of time. We define several importance metrics, ordering schemes, and performance evaluation measures for this problem. We also experimentally evalu...

Multicast Security is one of the important problems to solve for the successful deployment of group communication applications, and source authentication of multicast data is a key and difficult problem. To solve it, a new approach is afforded based on the basic tree hashing protocol. The performance evaluation shows there are less computation and communication overheads in it, so which is reas...

The construction of faithful system models for quantitative analysis, e.g., performance evaluation, is challenging due to the inherent systems’ complexity and unknown operating conditions. To overcome such difficulties, we are interested in the automated construction of system models by learning from actual execution traces. We focus on the timing aspects of systems that are assumed to be of st...

introduction: implementation of hospital information system (his) depends on the complete organizational change in which most effective factors need to be considered. since the most important factor is human resources, training, survey, information and acceptance of the staff toward the his are also essential issues. we investigated the implementation of his in imam khomeini hospital. methods: ...

Increasing complexity of current and future systems poses a new challenge for software engineers. In a previous work we presented a light-weight runtime system for abstraction of heterogeneous parallel systems. This runtime system adapts an application to the current system state in order to improve the utilization of the available resources. For online evaluation of such adaptions, we propose ...

Performance is determined by a system’s resources and its workload. Some of these resources are software resources which are embedded in the software architecture; some of them are even created by the software architecture. This paper considers software resources and resource architecture, as an aspect of software architecture, It considers how resource architecture emerges, the relationship of...

Virtual team in a project within an organization could achieve optimize project performance by acquiring appropriate human resources, coordination, communication and regular performance evaluation. According to the literature many ICT tools will collaborate to manage virtual teams, but still most of the projects lead to failure in the software industry. Aim of this research is to discover the m...