service oriented architecture (soa) technology enables composition of large and complex computational units out of the available atomic services. implementation of soa brings about challenges which include service discovery, service interaction, service composition, robustness, quality of service, security, etc. these challenges are mainly due to the dynamic nature of soa. soamay often need to ...

The most important goal of each society, is to reach economic development. As the goal and agent of development, man has got an important responsibility, which responsibility is realized by way of education, specially higher education, because the universities are the main factors for progress, production of knowledge and education of specialized human forces and they play a significant role in...

Concrete structures without sufficient durability can be damaged by sulfates in groundwater and from surrounding rock layers. To evaluate the performance of a concrete mixture, precise performance-oriented test methods are must. Therefore, new oriented procedure based on tensile strength measurements was developed considering experiences reported international literature recommendations state-o...

This study examined the effects of input-oriented and output-oriented tasks with different involvement load indices on Iranian EFL learners' comprehension and production of lexical collocations. To achieve this purpose, a sample of 180 intermediate-level EFL learners (both male and female) participated in the study. The participants were in six experimental groups. Each of the groups was random...

SERVICE ORIENTED ARCHITECTURE ADOPTION IN E-EDUCATION SYSTEM

The introduction of a Service-Oriented Architecture (SOA) can affect performance in a negative way. This exacerbates the application of SOA to systems for bulk data processing. This paper describes specific aspects of Service-Oriented Architectures that impact performance particularly. It discusses several approaches to these issues that are currently established and motivates the need for a fr...

Service-oriented computing, which offers more flexible means for application development, is gaining popularity. Service-oriented grid applications are constructed by selecting and composing appropriate services. They are one kind of promising applications in grid environments. However, the dynamism and autonomy of environments make the issues of dynamically adapting a service-oriented grid app...