The Experts below are selected from a list of 62499 Experts worldwide ranked by ideXlab platform
Tadaaki Bandoh - One of the best experts on this subject based on the ideXlab platform.
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cost effective streaming Server Implementation using hi tactix
ACM Multimedia, 2002Co-Authors: Damien Le Moal, Tadashi Takeuchi, Tadaaki BandohAbstract:High performance and high quality for continuous media stream delivery needed by streaming Server systems cannot be achieved efficiently using general-purpose operating systems, due to the overhead of the I/O mechanism Implementation generally used. Special OS combined with powerful hardware can deliver better performance and quality but increases development complexity and deployment costs. The External I/O Engine Architecture adopts a hybrid approach, implementing streaming engines using the streaming-oriented Hi-Tactix operating system on inexpensive hardware, in combination with existing stream Servers. The evaluation results of a QuickTime video Server implemented with the existing Darwin Streaming Server using the External I/O Engine Architecture shows that Hi-Tactix can deliver 5 times the performance of a conventional OS and better stream quality, while keeping the amount of code necessary low.
Damien Le Moal - One of the best experts on this subject based on the ideXlab platform.
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cost effective streaming Server Implementation using hi tactix
ACM Multimedia, 2002Co-Authors: Damien Le Moal, Tadashi Takeuchi, Tadaaki BandohAbstract:High performance and high quality for continuous media stream delivery needed by streaming Server systems cannot be achieved efficiently using general-purpose operating systems, due to the overhead of the I/O mechanism Implementation generally used. Special OS combined with powerful hardware can deliver better performance and quality but increases development complexity and deployment costs. The External I/O Engine Architecture adopts a hybrid approach, implementing streaming engines using the streaming-oriented Hi-Tactix operating system on inexpensive hardware, in combination with existing stream Servers. The evaluation results of a QuickTime video Server implemented with the existing Darwin Streaming Server using the External I/O Engine Architecture shows that Hi-Tactix can deliver 5 times the performance of a conventional OS and better stream quality, while keeping the amount of code necessary low.
Ashok Subramanian - One of the best experts on this subject based on the ideXlab platform.
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a strategic client Server Implementation new technology lessons from history
Journal of Strategic Information Systems, 1997Co-Authors: Mary C Lacity, Leslie P Willcocks, Ashok SubramanianAbstract:Abstract Despite the rapid growth in client/Server technologies and their development and usage in work organizations, there have been too few academic studies of the technical human and organizational issues associated with the phenomenon. This paper provides a longitudinal case study of a 1989–1995 client/Server project in a $1 billion annual revenue United States based silicon chip manufacturing company. Using an interpretive research approach the financial and business dimensions of the project' success were analysed. Seven critical enabling factors were identified, namely business re-engineering driving technical choices, insourcing of new development, the form of vendor partnering adopted, incremental Implementation approach, senior level support and participation, close IS-user relationships and IS seen as a business investment, not just a cost centre. These suggest that there is little difference in implementing client/Server compared to any other information technology new to an organization. The paper tests this point further by comparing distinctive issues raised by client/Server as suggested in the wider IS literature, against the specifics of the case history.
Maciej Franek - One of the best experts on this subject based on the ideXlab platform.
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FPGA BASED OPC UA EMBEDDED INDUSTRIAL DATA Server Implementation
Journal of Circuits Systems and Computers, 2013Co-Authors: Rafal Cupek, Adam Ziebinski, Maciej FranekAbstract:Contemporary computer systems used in the industry are characterized by both an increase in the scale of supported industrial processes measured by the number of control devices and the increasing demand for information describing the underlying processes measured by the number of tags used in Supervisory Control and Data Acquisition (SCADA) systems and Manufacturing Execution Systems (MES). Classical industrial data Servers based on the PC architecture are unreliable, expensive to operate and difficult to manage. The alternative is a new standard OPC UA communication interface that simplifies the communication protocol and increases the flexibility of the process data description which allow for the direct Implementation of OPC UA Servers in embedded devices. This paper presents an innovative approaches in the field of industrial data Servers which are used for communication between control systems and SCADA or MES systems. The prototype industrial data Server architecture has been implemented, run and tested on the platform of embedded system based on FPGA matrix with built-in FPGA Microblaze processor. The presented experimental results allow to evaluate the applicability of the proposed solution, the limits of the presented architecture and may be used for the improvement of the embedded industrial data Servers' structure in subsequent Implementations.
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fpga based opc ua embedded industrial data Server Implementation
Journal of Circuits Systems and Computers, 2013Co-Authors: Rafal Cupek, Adam Ziebinski, Maciej FranekAbstract:Contemporary computer systems used in the industry are characterized by both an increase in the scale of supported industrial processes measured by the number of control devices and the increasing demand for information describing the underlying processes measured by the number of tags used in Supervisory Control and Data Acquisition (SCADA) systems and Manufacturing Execution Systems (MES). Classical industrial data Servers based on the PC architecture are unreliable, expensive to operate and difficult to manage. The alternative is a new standard OPC UA communication interface that simplifies the communication protocol and increases the flexibility of the process data description which allow for the direct Implementation of OPC UA Servers in embedded devices. This paper presents an innovative approaches in the field of industrial data Servers which are used for communication between control systems and SCADA or MES systems. The prototype industrial data Server architecture has been implemented, run and tested on the platform of embedded system based on FPGA matrix with built-in FPGA Microblaze processor. The presented experimental results allow to evaluate the applicability of the proposed solution, the limits of the presented architecture and may be used for the improvement of the embedded industrial data Servers' structure in subsequent Implementations.
Tadashi Takeuchi - One of the best experts on this subject based on the ideXlab platform.
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cost effective streaming Server Implementation using hi tactix
ACM Multimedia, 2002Co-Authors: Damien Le Moal, Tadashi Takeuchi, Tadaaki BandohAbstract:High performance and high quality for continuous media stream delivery needed by streaming Server systems cannot be achieved efficiently using general-purpose operating systems, due to the overhead of the I/O mechanism Implementation generally used. Special OS combined with powerful hardware can deliver better performance and quality but increases development complexity and deployment costs. The External I/O Engine Architecture adopts a hybrid approach, implementing streaming engines using the streaming-oriented Hi-Tactix operating system on inexpensive hardware, in combination with existing stream Servers. The evaluation results of a QuickTime video Server implemented with the existing Darwin Streaming Server using the External I/O Engine Architecture shows that Hi-Tactix can deliver 5 times the performance of a conventional OS and better stream quality, while keeping the amount of code necessary low.
