Browsing by Subject "Client/server computing"
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Item Item Design of a P2P-based network architecture for automated test equipment(Texas Tech University, 2004-05) Pandit, ParagSchemes that use intercormected devices such as control systems and Automated Test Equipment (ATE) traditionally use software that is built upon the client-server model. As a result, these systems are incapable of guaranteeing control of the master over slaves in the event of many cases of system failure. Also, these systems are often written in compiled languages like 'C' or 'Assembly', which makes the task of recompiling software and rebooting systems necessary when modifications are performed. In an effort to provide greater fault tolerance and reliability, we explore the possibility of using the P2P model for networking devices. Moreover, we attempt to use scripts for defíning system behavior, which provides flexibility and ease in making modifications at runtime. We met our goal by developing a distributed P2P architecture for confederations of devices and by defíning an XML-based scripting language for writing distributed applications that run on the said platform. Message protocols for communication between devices were defíned. Many useful features were implemented that make the framework powerfiil and yet simple to use.Item The effects of paired client-server architecture on interaction, achievement, and attitude in computer-mediated course delivery(Texas Tech University, 1999-05) Mize, Charles DarrelThis study considers the effects of paired client-server architecture on interaction, achievement, and attitude in computer mediated course delivery. The hypothesis studied proposes that the use of computer mediated technology to dehver instructional content has an effect upon the three variables of student interaction, achievement, and attitude. Through the use of appropriately paired client-server architecture, the technology can be designed to match the instructional task to be accomplished. By finding the best fit between the client-server pair and the instructional task, the effects of the technology can be reduced and therefore will allow students to concentrate on the content. If the technology is not appropriately matched to the instructional task, students must deal with additional cognitive noise that reduces their ability to deal with the content. Variances between student interaction, achievement, and attitude should be reduced when the client-server pair is designed to match the instructional task. This study followed a 2x2 factorial design to investigate the use of a Mud Object Oriented (MOO) client and server for the delivery of instructional content in an on-line environment. A multiple analysis of covariance was used for the statistical analysis in order to evaluate the effects of the technology upon the dependent variables while controlling for variances due to a student's degree of previous computer experience. The results reported in this study indicate that a reciprocal relationship exists between the instructional task required and the technology used. The results further suggest that in order to improve computer mediated course delivery, consideration must be given to matching the characteristics of the technology to the instructional task so that the effect of the technology on student interaction, achievement, and attitude may be minimized.