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Announcing IJITWE (2)1 and CFP

The contents of the latest issue of:

International Journal of Information Technology and Web Engineering (IJITWE)
Official Publication of the Information Resources Management Association
Volume 2, Issue 1, January-March 2007
Published: Quarterly in Print and Electronically
ISSN: 1554-1045
EISSN: 1554-1053
Published by Idea Group Inc., Hershey, PA, USA

Ghazi Alkhatib, Applied Science University, Amman, Jordan
David Rine, George Mason University, USA

Special Issue: 4th International Multiconference on Computer Science
and Information Technology CSIT 2006


Eyas El-Qawasmeh, Guest Editor, Jordan University of Science and
Technology, Jordan

The articles in this issue of The International Journal of Information
Technology and Web Engineering are the best among those selected for
the 4th International Multiconference on Computer Science and
Information Technology CSIT 2006 held in Jordan April 5-7, 2006. The
articles in this issue address three important topics: grids,
networks, and ontology.



"Hierarchical Scheduling in Heterogeneous Grid Systems"

Khaldoon Al-Zoubi, Carleton University, Canada

This article proposes hierarchal scheduling schemes for grid systems:
A self-discovery scheme for the resource discovery stage and an
adaptive child scheduling method for the resource selection stage. In
addition, it proposes three rescheduling algorithms: (1) The butterfly
algorithm, which reschedules jobs when better resources become
available, (2) the fallback algorithm, which reschedules jobs that had
their resources taken away from the grid, before the actual resource
allocation, and (3) the load-balance algorithm, which balances the
load among resources. It also proposes a hybrid system to combine the
proposed hierarchal schemes with the well-known peer-to-peer (P2P)
principle. The performance of the proposed schemes is compared against
the P2P-based grid systems through simulation with respect to a set of
predefined metrics.

To obtain a copy of the entire article, click on the link below.


"Object Grouping and Replication on a Distributed Web Server System"

Amjad Mahmood, University of Bahrain, Bahrain
Taher S. K. Homeed, University of Bahrain, Bahrain

Object replication is a well-known technique to improve performance of
a distributed Web-server system. This article first presents an
algorithm to group correlated Web objects that are most likely to be
requested by a given client in a single session so that they can be
replicated together, preferably, on the same server. A centralized
object replication algorithm is then proposed to replicate the object
groups to a cluster of Web-server systems in order to minimize the
user's perceived latency, which is subject to certain constraints. Due
to the dynamic nature of Web content and users' access patterns, a
distributed object replication algorithm also is proposed where each
site locally replicates the object groups based on the local access
patterns. The performance of the proposed algorithms is compared with
three well-known algorithms, and the results are reported. The results
demonstrate the superiority of the proposed algorithms.

To obtain a copy of the entire article, click on the link below.


"On a Modified Backoff Algorithm for MAC Protocol in MANETs"

Saher S. Manaseer, University of Glasgow,  UK
Mohamed Ould-Khaoua, University of Glasgow, UK
Lewis M. Mackenzie, University of Glasgow, UK

In wireless communication environments, backoff is traditionally based
on the IEEE binary exponential backoff (BEB). Using BEB results in a
high delay in message transmission, collisions, and ultimately wasting
the limited available bandwidth. As each node has to obtain medium
access before transmitting a message, in dense networks, the collision
probability in the medium access control (MAC) layer becomes very
high, when a poor backoff algorithm is used. The logarithmic algorithm
proposes some improvements to the backoff algorithms that aim to
efficiently use the channel and to reduce collisions. The algorithm
under study is based on changing the incremental behavior of the
backoff value. The BEB is used by the local area networks (LANs)
standards, IEEE 802.11, MAC. BEB uses a uniform random distribution to
choose the backoff value; this often leads to reducing the effect of a
window-sized increment. This paper carries out a deeper study and
analysis of the logarithmic backoff algorithm that uses logarithmic
increments, instead of an exponential extension of the window size to
eliminate the degrading effect of random number distribution. Results
from simulation experiments reveal that the algorithm subject under
study achieves higher throughput and less packet loss, when in a
mobile ad hoc environment.

To obtain a copy of the entire article, click on the link below.


"FSR Evaluation Using the Suboptimal Operational Values"

Osama H. S. Khader, The Islamic University of Gaza, Palestine

In mobile ad-hoc networks, routing protocols are becoming more
complicated and problematic. Routing in mobile ad-hoc networks is
multihop because of the limited communication range of wireless
radios. Since nodes in the network can move freely and randomly, an
efficient routing protocol is needed for such networks to be able to
perform well in such an environment. In this environment, the routing
strategy is applied such that it is flexible enough to handle large
populations and mobility and is able to minimize the use of the
battery. Also it should be designed to achieve maximum packet delivery
ratio. Furthermore, the routing protocol must perform well in terms of
fast convergence, low routing delay, and low control overhead traffic.
In this article, an improved implementation of the fisheye state
routing (FSR) protocols is presented, where a new selection routing
criteria that utilizes a minimum number of hops is a selection metric.
The results obtained from simulation indicate that the fewer number of
hops used, the better and more efficient the output for packet
delivery ratio was generated

To obtain a copy of the entire article, click on the link below.


"Engineering Conceptual Data Models from Domain Ontologies: A Critical

Haya El-Ghalayini, University of the West of England (UWE), UK
Mohammed Odeh, University of the West of England (UWE), UK
Richard McClatchey, University of the West of England (UWE), UK

This article studies the differences and similarities between domain
ontologies and conceptual data models and the role that ontologies can
play in establishing conceptual data models during the process of
developing information systems. A mapping algorithm has been proposed
and embedded in a special purpose transformation engine to generate a
conceptual data model from a given domain ontology. Both quantitative
and qualitative methods have been adopted to critically evaluate this
new approach. In addition, this article focuses on evaluating the
quality of the generated conceptual data model elements using
Bunge-Wand-Weber and OntoClean ontologies. The results of this
evaluation indicate that the generated conceptual data model provides
a high degree of accuracy in identifying the substantial domain
entities, along with their relationships being derived from the
consensual semantics of domain knowledge. The results are encouraging
and support the potential role that this approach can take part in the
process of information system development.

To obtain a copy of the entire article, click on the link below.

For full copies of the above articles, check for this issue of the
International Journal of Information Technology and Web Engineering
(IJITWE) in your institution's library.  If your library is not
currently subscribed to this journal, please recommend an IJITWE
subscription to your librarian.


Mission of IJITWE:

The main objective of the journal is to publish refereed papers in the
area covering Information Technology (IT) concepts, tools,
methodologies, and ethnography, in the contexts of global
communication systems and Web engineered applications. In accordance
with this emphasis on the Web and communication systems, the journal
publishes papers on IT research and practice that support seamless
end-to-end information and knowledge flow among individuals, teams,
and organizations. This end-to-end strategy for research and practice
requires emphasis on integrated research among the various steps
involved in data/knowledge (structured and unstructured) capture
(manual or automated), classification and clustering, storage,
analysis, synthesis, dissemination, display, consumption, and
feedback. The secondary objective is to assist in the evolving and
maturing of IT-dependent organizations, as well as individuals, in
information and knowledge based culture and commerce, including

Coverage of IJITWE:

Case studies validating Web-based IT solutions
Competitive/intelligent information systems
Data analytics for business and government organizations
Data and knowledge capture and quality issues
Data and knowledge validation and verification
Human factors and cultural impact of IT-based systems
Information filtering and display adaptation techniques for wireless devices
Integrated heterogeneous and homogeneous workflows and databases
within and across organizations and with suppliers and customers
Integrated user profile, provisioning, and context-based processing
IT Education and Training
IT readiness and technology transfer studies
Knowledge structure, classification and search algorithms or engines
Metrics-based performance measurement of IT-based and Web-based organizations
Mobile, location-aware, and ubiquitous computing
Ontology and semantic Web studies
Quality of service and service level agreement issues among integrated systems
Radio Frequency Identification (RFID) research and applications in web
engineered systems
Security, integrity, privacy and policy issues
Software agent-based applications
Strategies for linking business needs and IT
Virtual teams and virtual enterprises: communication, policies,
operation, creativity, and innovation
Web systems architectures, including distributed, grid computer, and
communication systems processing
Web systems engineering design
Web systems performance engineering studies
Web user interfaces design, development, and usability engineering studies

Interested authors should consult the journal's manuscript submission
guidelines at http://www.idea-group.com/ijitwe

All inquiries and submissions should be sent to:
Ghazi Alkhatib at alkhatib@asu.edu.jo or David Rine at drine@gmu.edu

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