The Project Execution and Management Environment Server (PEME) is a software platform implementing the Model Designed User Environments. PEME is also a Web-based context management system where context has to do with contents, organizations and tools. PEME is generated from knowledge models. The main purpose of PEME is to provide an intermediate layer through which endusers can interact with th...

Scientists demand easy-to-use, scalable and flexible infrastructures for sharing, managing and processing their data spread over multiple resources accessible via different technologies and interfaces. In our previous work, we developed the conceptual framework VISPA for addressing these requirements. This paper provides a case study assessing the integrated Rule-Oriented Data System (iRODS) fo...

Rigid E-unification problems arise naturally in automated theorem provers that deal with equality. While there is a lot of theory about rigid E-unification, only few implementations exist. Since the problem is NPcomplete, direct implementations of the theory are slow. In this paper we discuss how to implement a rigid E-unifier, focussing on efficiency. First, we introduce an efficient represent...

the successful adoption of e-learning systems is mainly dependent on the learners’ attitude and willingness to use them. this survey was conducted to investigate agricultural extension workers’ attitudes toward using e-learning for on-the-job training in iran and factors which affect it. using the stratified sampling technique a sample of 379 extension workers were selected from six provinces. ...

the implementation of inter-organizational systems like business- to- business e-commerce (b2b e-commerce)  is being categorized as a system with high degree of difficulty since it involves complexity of the multiple relationships and interactions between trading partners. companies need to consider their own strengths and weaknesses before making decisions to explore new b2b e-commerce without...

Examples from Psycholinguistics – a humanities discipline – show that data intensive research is changing all scientific disciplines dramatically. Data intensive sciences pose unprecedented challenges in data management and processing. A survey in Europe showed clearly that most of the research departments are not prepared for this step and that the methods that are used to manage, curate and p...