Data processing: structural design – modeling – simulation – and em – Emulation – Of peripheral device
Reexamination Certificate
1998-06-11
2001-03-20
Teska, Kevin J. (Department: 2123)
Data processing: structural design, modeling, simulation, and em
Emulation
Of peripheral device
C703S023000, C709S224000, C714S032000, C714S047300
Reexamination Certificate
active
06205413
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention generally relates to interactive computer communications and, more particularly, to a method for a user-friendly, automated collection and tabulation of performance measurements that directly reflects the perception of an end-user on the capabilities of the underlying communications network.
2. Background Description
Interest in interactive data services has been growing by leaps and bounds for over two decades now, and there is no hint of a slowing down of this growth. From simple file transfers, to World-Wide Web (WWW) or, simply, Web-based interactions and transactions, telecommuting and remote learning, to customer initiated and controlled digital video transmissions, etc., interactive data services become more and more a part of our every day experiences, both at the office and at home.
The success of interactive data services deployment depends on many factors, like the availability of cost effective communications technology, the quality of communication equipment used, the quality of the communications media and communications protocols adopted, etc. Prior to deploying a new service, network operators go through a certification process to certify that their networks can support the intended services. Also, during regular operation of the network, and while services are being deployed over them, network operators continue to monitor the quality of their networks and are continuously in search of possible network breakdowns, like amplifier degradation, noise interference, communication link severance, etc., that need to be fixed as soon as possible.
Although the ultimate objective of network certification and monitoring is to make sure that users, or subscribers, of the network supported services will be satisfied by the services provided, network certification and monitoring restricts itself to “low-level” measurements like signal-to-noise (S/N) ratio, bit error rate (BER), percentage of lost packets (PLP), etc. Yet, as useful as this information is, it is network oriented and it does not always accurately reflect the capability of the communication system to support specific data services to subscribers. More importantly, such a certification and monitoring of the network does not reveal at all the level of satisfaction of a subscriber to an interactive data service. Subscribers do not measure satisfaction with BERs, S/Ns, etc., quantities that most probably are foreign to them. Subscribers measure satisfaction by the responsiveness of the system, e.g., how fast a file is transferred to a subscriber's computer, or how fast does a Web-page, from a simple text-based page, to an elaborate graphics-oriented page, is downloaded to the subscriber's Web-browser.
Clearly, any reputable service provider and network operator cannot afford to rely on feedback received directly from subscribers. Such feedback will, most probably, be too late received and quite likely will reflect a very dissatisfied group of subscribers. A pro-active means of network performance monitoring is needed that will provide the network operators and service providers with up-to-the-minute subscriber satisfaction measurements and will allow them sufficient time to take corrective actions whenever signs of problems arise.
SUMMARY OF THE INVENTION
It is therefore an object of the present invention to provide a network monitoring and testing system that will reflect a subscriber's perception of the quality of provided services.
The system of this invention collects performance data from a series of interactions (or, tests) between a subscriber computer system and a service provider and will perform statistical analysis and report the test results of these tests to appropriate network and service providers personnel.
It is another object of this invention to automate the process of the data collection, processing and displaying, while dynamically adjust the performed tests so that data can be collected for various types of subscriber interactions and during various times of the day.
According to the invention, all the necessary automations are achieved by introducing a virtual subscriber system, which is a piece of computer software running on designated computer hardware systems, e.g., personal computers, or specially designed hardware, that emulates the actions of regular subscribers and is able to keep response time records between request for specific services and the receipt of these services.
REFERENCES:
patent: 5627766 (1997-05-01), Beaven
patent: 5781449 (1998-07-01), Rosborough
patent: 5790425 (1998-08-01), Wagle
patent: 5812780 (1998-09-01), Chen et al.
patent: 5881268 (1999-03-01), McDonald et al.
patent: 5958003 (1999-09-01), Preining et al.
patent: 5974237 (1999-10-01), Shurmer et al.
patent: 5974572 (1999-10-01), Weinber et al.
patent: 5996090 (1999-11-01), Hellertein
Du et al., “Performance Analysis of Interconnected LANs with Server/Client Configuration”, ‘Communications on the Move’ Sing. ICCS/ISITA '92, vol. 1, pp. 67-71, Nov. 1992.*
Cook et al., “Analytical Response Time Model for Distributed Systems”, Proc. Inter. Conf. on APL. pp. 81-101, Aug. 1990.*
Mainkar, V., “Availability of Transaction Processing Systems Based on User-perceived Performance”, Proc. Sixteeth Symp. on Reliable Distributed Systems, pp. 10-17, Oct. 1997.*
Dimpsey et al., “A Measurement-based Model to Predict the Performance Impact of System Modifications: A Case Study”, IEEE Trans. on Parallel and Distributed Systems, vol. 6, Issue 1, pp. 28-40, Jan. 1995.
Bisdikian Chatschik
Maruyama Kiyoshi
Sergent Douglas W.
Teska Kevin J.
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