Wyniki wyszukiwania - BazTech

1

Sensitivity analysis of key customers and revenue-oriented admission control and scheduling algorithm

Suchacka G., Borzemski L.

Management and Production Engineering Review

|

2013

|

Vol. 4, No. 1

65--73

EN

The paper deals with the problem of Quality of Web Service (QoWS) in e-commerce Web servers, i.e. in retail Web stores. It concerns the admission control and scheduling algorithm for a Web server system, which aims at preventing the system from overload to provide high QoWS level and ultimately, to increase Web site's conversion rate, i.e. to turn more visitors into customers. The sensitivity of the algorithm to changes in its basic parameter values was analyzed by using a simulation-based approach. Special attention was paid to evaluation of the parameter impact on conventional and business-related system performance metrics.

2

Biznesowo-zorientowana metoda obsługi żądań w serwisie WWW

Suchacka G.

Pomiary Automatyka Kontrola

|

2011

|

R. 57, nr 2

209-211

PL

Artykuł dotyczy problemu gwarantowania jakości usług serwisów WWW zapewniających funkcjonowanie detalicznych sklepów internetowych. Zaproponowano nową metodę obsługi żądań w serwisie, której celem jest maksymalizowanie przychodu osiąganego przez właściciela e biznesu, przy jednoczesnym oferowaniu wyższej jakości usług dla bardziej wartościowych klientów. Do identyfikacji i oceny wartości kluczowych klientów zaproponowano zastosowanie analizy RFM (ang. Recency-Frequency-Monetary value analysis). Przedyskutowano nowy algorytm kontroli przyjęć i szeregowania żądań, realizujący sterowanie zgodnie z przyjętymi celami "biznesowymi".

EN

The paper deals with the problem of guaranteeing high Quality of Web Service (QoWS) in e-commerce Web servers. Due to the high variability and unpredictability of Web traffic, Web servers are subject to overloads, which result in users experiencing too long response times, their impatience and site abandonment. Such situations are detrimental to e-business conducted over the Internet, especially in the highly competitive Business-to-Consumer (B2C) e-commerce environment. In the paper, a novel request service method for a Web server system hosting a B2C Web site is proposed. The method aims at ensuring high revenue achieved by an online-retailer through successfully processed purchase transactions, as well as offering higher QoWS for more valued customers. To identify and evaluate values of key customers, RFM (Recency-Frequency-Monetary value) analysis has been applied to the method. A new admission control and scheduling algorithm realizing request service control according to business-oriented goals is discussed.

3

A cluster-based web system providing guaranteed service

Zatwarnicki K.

Systems Science

|

2009

|

Vol. 35, no 4

69-80

EN

The paper describes a new MLF (Mostly Loaded First) method of HTTP requests scheduling and distribution in a cluster-based Web system. Its application enables keeping the quality of the Web service on the required level and makes the Web service behave in a predictable way, opposite to other Web services offering unpredictable and unreliable services of best-effort type. MLF method helps to keep the page response time within established bounds, so that at a heavy workload, servicing both small and simple or more complex pages, would not exceed the imposed time limit. In the method presented, appropriate mechanisms of HTTP requests scheduling have been applied, as well as a new algorithm of the requests distribution has been proposed. In the paper, the method, the testbed and results obtained, which indicate desirability of further research on the MLF method, are presented.

4

Proposal of using business information in a QoS mechanism for the e-commerce Web server

Suchacka G.

Studia Informatica

|

2009

|

Vol. 30, nr 4

81-95

EN

Due to very negative and long-term consequences of a low quality of service (QoS) for e-business, a number of QoS mechanisms for Web servers were proposed. As a continuation of this research trend, the paper proposes a new way of using business information in an admission control and scheduling scheme for the e-commerce server aiming at the integration of the server system efficiency with e-business profitability.

PL

Tematyka pracy dotyczy problemu jakości usług ośrodków webowych. Zaproponowano nowatorski sposób wykorzystania informacji biznesowych w metodzie kontroli przyjęć i szeregowania żądań dla serwisu e-commerce. Celem metody jest połączenie aspektu wydajności serwisu webowego oraz rentowności elektronicznego biznesu.