NDLI: Web&: an architecture for non-interactive Web

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Web&: an architecture for non-interactive Web

Content Provider	IEEE Xplore Digital Library
Author	Phatak, S.H. Esakki, V. Badrinath, B.R. Iftode, L.
Copyright Year	2001
Description	Author affiliation: Dept. of Comput. Sci., Rutgers Univ., Piscataway, NJ, USA (Phatak, S.H.)
Abstract	The profile of Web use has changed from information access to e-commerce. The current interactive (synchronous) model is time-consuming. Web browsing can become frustrating if the network or servers incur delays or are not accessible, or if the same interaction must be repeated many times. It is even more painful for clients who are disconnected most of the time or are accessing the Web via low-bandwidth connections and resource-constrained devices. Therefore, there is a need to support non-interactive (asynchronous) transactions between clients and servers on the Web. Such a model is more efficient because: (i) there is reduced sensitivity to network latencies/unavailability, (ii) Web activities can be performed concurrently, and (iii) client mobility can be easily supported. We propose a novel non-interactive service architecture for the Web, called "Web&". The architecture incorporates server and service discovery, support for disconnected and heterogeneous clients, Web transactions via a uniform server interface and a persistent client state. We present a prototype, implemented using Java, XML and JDBC, which consists of client proxies that can store the client state and perform Web queries on a client's behalf, and server proxies that provide a uniform XML-based interface to Web servers. A directory service provides a schema server and service discovery. Even on a single-processor Sun workstation with 512 MB, we can support 25,000 tasks with a peak throughput of 150 tasks/sec. Two applications (IsItLate for flight tracking and IsItThere for package tracking) are currently being run.
Sponsorship	IEEE Comput. Soc. Tech. Committee on the Internet
Starting Page	104
Ending Page	112
File Size	882985
Page Count	9
File Format	PDF
ISBN	0769511376
DOI	10.1109/WIAPP.2001.941877
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2001-07-24
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Service oriented architecture Network servers Delay Prototypes Java XML Web server Sun Workstations Throughput
Content Type	Text
Resource Type	Article

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