The Experts below are selected from a list of 2937 Experts worldwide ranked by ideXlab platform
Marco Iansiti - One of the best experts on this subject based on the ideXlab platform.
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science based product development an empirical study of the Mainframe Computer industry
2009Co-Authors: Marco IansitiAbstract:This paper reports on the results of an empirical study of product development in a complex and novel environment. The work is based on field investigations of recent product development projects performed by all leading Mainframe Computer producers. The projects focused on the development of complex products based on advanced technologies and probed deeply into their science base. The results show striking differences in development lead time and research and development productivity between different projects. The analysis relates these performance differences to the process for the integration of new technology. Organizations that emphasize the accumulation of system-level knowledge of product and production process and its use in technology evaluation and selection are associated with high productivity and short development lead times. This appears to have a greater impact on development performance in this novel environment than more traditional factors, such as processes for effective crossfunctional integration and for overlapping problem solving.
Benghong Lim - One of the best experts on this subject based on the ideXlab platform.
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virtualizing i o devices on vmware workstation s hosted virtual machine monitor
2001Co-Authors: Jeremy Sugerman, Ganesh Venkitachalam, Benghong LimAbstract:Virtual machines were developed by IBM in the 1960’s to provide concurrent, interactive access to a Mainframe Computer. Each virtual machine is a replica of the underlying physical machine and users are given the illusion of running directly on the physical machine. Virtual machines also provide benefits like isolation and resource sharing, and the ability to run multiple flavors and configurations of operating systems. VMwareWorkstation brings such Mainframe-class virtual machine technology to PC-based desktop and workstation Computers. This paper focuses on VMware Workstation’s approach to virtualizing I/O devices. PCs have a staggering variety of hardware, and are usually pre-installed with an operating system. Instead of replacing the pre-installed OS, VMware Workstation uses it to host a user-level application (VMApp) component, as well as to schedule a privileged virtual machine monitor (VMM) component. The VMM directly provides high-performance CPU virtualization while the VMApp uses the host OS to virtualize I/O devices and shield the VMM from the variety of devices. A crucial question is whether virtualizing devices via such a hosted architecture can meet the performance required of high throughput, low latency devices. To this end, this paper studies the virtualization and performance of an Ethernet adapter on VMware Workstation. Results indicate that with optimizations, VMware Workstation’s hosted virtualization architecture can match native I/O throughput on standard PCs. Although a straightforward hosted implementation is CPU-limited due to virtualization overhead on a 733 MHz Pentium R III system on a 100 Mb/s Ethernet, a series of optimizations targeted at reducing CPU utilization allows the system to match native network throughput. Further optimizations are discussed both within and outside a hosted architecture.
Dimnik Tomaž - One of the best experts on this subject based on the ideXlab platform.
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Web application for monitoring Mainframe Computer, Linux operating systems and application servers
2016Co-Authors: Dimnik TomažAbstract:This work presents the idea and the realization of web application for monitoring the operation of the Mainframe Computer, servers with Linux operating system and application servers. Web application is intended for administrators of these systems, as an aid to better understand the current state, load and operation of the individual components of the server systems
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Web application for monitoring Mainframe Computer, Linux operating systems and application servers
2016Co-Authors: Dimnik TomažAbstract:V delu predstavimo idejo in realizacijo spletne aplikacije za nadzor delovanja centralnega računalnika, strežnikov z operacijskim sistemom Linux in aplikacijskih strežnikov. Spletna aplikacija je namenjena skrbnikom omenjenih sistemov kot pomoč za lažje razumevanje trenutnega stanja, obremenitev in delovanja posameznih komponent sistemov.This work presents the idea and the realization of web application for monitoring the operation of the Mainframe Computer, servers with Linux operating system and application servers. Web application is intended for administrators of these systems, as an aid to better understand the current state, load and operation of the individual components of the server systems
Jeff Kallis - One of the best experts on this subject based on the ideXlab platform.
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marketing complex technical products the importance of intangible attributes
1991Co-Authors: Jim Shaw, Joe Giglierano, Jeff KallisAbstract:Abstract Historically, big ticket industrial marketing practice has been to emphasize measurable product characteristics and features when communicating with prospective buyers. This article questions the wisdom of that practice. First of all, very little if any research supports it. Secondly, it strongly conflicts with well researched and accepted consumer marketing practices that imply that buying decisions are often primarily based on psychological factors. Are we to believe that an executive makes business buying decisions based on quantifiable product characteristics and yet makes personal buying decisions based on intangibles? In an effort to expand the available research on this question, this article examines the types of information senior Management Information Systems (MIS) executives employ in the Mainframe Computer product decision process. Specifically, the criteria these executives use in selecting an operating system for their large scale Mainframe Computers is examined. The results suggest that after base performance criteria have been met, big ticket industrial buying decisions are largely based on psychological factors. Therefore, successful industrial marketing should include a greater emphasis on the psychological aspects of the buying decision.
Jeremy Sugerman - One of the best experts on this subject based on the ideXlab platform.
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virtualizing i o devices on vmware workstation s hosted virtual machine monitor
2001Co-Authors: Jeremy Sugerman, Ganesh Venkitachalam, Benghong LimAbstract:Virtual machines were developed by IBM in the 1960’s to provide concurrent, interactive access to a Mainframe Computer. Each virtual machine is a replica of the underlying physical machine and users are given the illusion of running directly on the physical machine. Virtual machines also provide benefits like isolation and resource sharing, and the ability to run multiple flavors and configurations of operating systems. VMwareWorkstation brings such Mainframe-class virtual machine technology to PC-based desktop and workstation Computers. This paper focuses on VMware Workstation’s approach to virtualizing I/O devices. PCs have a staggering variety of hardware, and are usually pre-installed with an operating system. Instead of replacing the pre-installed OS, VMware Workstation uses it to host a user-level application (VMApp) component, as well as to schedule a privileged virtual machine monitor (VMM) component. The VMM directly provides high-performance CPU virtualization while the VMApp uses the host OS to virtualize I/O devices and shield the VMM from the variety of devices. A crucial question is whether virtualizing devices via such a hosted architecture can meet the performance required of high throughput, low latency devices. To this end, this paper studies the virtualization and performance of an Ethernet adapter on VMware Workstation. Results indicate that with optimizations, VMware Workstation’s hosted virtualization architecture can match native I/O throughput on standard PCs. Although a straightforward hosted implementation is CPU-limited due to virtualization overhead on a 733 MHz Pentium R III system on a 100 Mb/s Ethernet, a series of optimizations targeted at reducing CPU utilization allows the system to match native network throughput. Further optimizations are discussed both within and outside a hosted architecture.
