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Journal of Information and Communication Technology (JICT) Vol. 6, 2007

DESIGN AND IMPLEMENTATION OF A SYSTEM FOR TRANSFORMING FUNCTIONAL MODEL INTO OO MODEL
Yong Yang and Hee Beng Kuan Tan
School of Electrical and Electronic Engineering
Block S2, Nanyang Technological University
Singapore 639798
 
ABSTRACT FULL TEXT
This paper describes the design and implementation of prototype system, F200 for the enhanced dataflow diagram, called data flow net (DF net) (Tan, Yang, & Bian), 2006). The prototype system transforms the software systems designed in DF net to 00 design and implementation systemically, precisely and automatically. This has greatly enhanced the 00 methodology by synthesizing functional decomposition, which is a well-developed concept in traditional structured methodology. The prototype system facilitates the software designer to construct the functional analysis models for some of the use-cases in their own systems in DF net. Thereafter, together with remaining use-cases using any existing 00 software development methods, the whole systems can be implemented following current 00 design and implementation. This is very useful in realizing use-cases, especially those with more complex functions.
 
Keywords : DF net, Functional Decomposition, 00 design, F200
 

 
DESIGNING COMPUTATIONAL GRIDS USING BEST PRACTICES IN SOFTWARE ARCHITECTURE
*Hema Prem and **N.R. Srinivasa Raghavan
*Lead SETLabs EMEA Business Program, Infosys Technologies Limited
14 Upper Bank Street, Canary Wharf, London, UK, E14 5NP
** Lab group manager, Customer Driven Advanced Vehicle Development,
General Motors India Science Lab, Bangalore 560066
 
ABSTRACT FULL TEXT
The basic principle of sharing and collaborative work by geographically separated computers is known by several names such as meta computing, scalable computing, cluster computing, internet computing and this has today metamorphosed into a new term known as grid computing. Grid computing is proving to be promising method of HPC, which is packaged with many challenges. This paper elucidates the role that pattern can play in architecting complex systems with specific reference to grid computing. We provide descriptions of a set of well-engineered patterns that the practicing developer can apply to crafting his or her own specific applications. We develop the Software Requirements Specification (SRS), with an attempt to drive to effectual design specifications for use by any grid developer. We analyze the grid using an Object Oriented approach and present the design using the unified Modeling Language (UML) which itself helps the identification of patterns at different phases.
 
Keywords: Grid computing, Unified Modeling language, Analysis patterns, Design Pattern.
 

 
INTEGRATED MODEL FOR ORGANIZATIONAL TRANSFORMATION IN BUSINESS PROCESS REENGINEERING
Jamiah Osman and Norita Md Norwawi
Graduate Department of Computer Sceience
College of Arts & Science
Universiti Utara Malaysia
06010 UUM Sintok, Kedah darul Aman, Malaysia
 
ABSTRACT FULL TEXT
This paper presents a pilot study implementing business process engineering where integrated model was used for business transformation analysis. Business process reengineering is a process that contributes to organizational transformation which will redesign the business processes and management to achieve dramatic improvement in business performance. A model that can bridge the gap between business and technical view is needed in the reengineering processes such that it can be easily translated from both business and technical perspective. This study demonstrate the feasibility of using model as technique in generating reengineering solution for organizational transformation in a human resource department of a wholesale company. Evaluation by users including the human resource officer shows a high satisfaction and improvement in the prototype representing new wok processes develop using Lotus Notes.
 
Keywords: Organizational transformation, Business process reengineering.
 

 
PERFORMANCE AND COST COMPARISONS FOR A-PON AND S-PON FTTH SYSTEMS
*M.N. Derahman, ***W. Salman, **M.K. Abdullah and *M. Othman
*Faculty of Computer and Information Technology
** Faculty of Engineering
Universiti Putra Malaysia
43400 UPM Serdang, Selangor Darul Ehsan Malaysia
*** Telekom Malaysia Berhad
Email:mnoor@fsktm.upm.edu.my
 
ABSTRACT FULL TEXT
The high cost of fibers has always been a main concern as to why they have not been deployed in access networks. As the fiber technology is maturing, the costs fibers are slowly decreasing, and hence the above issue is no longer an issue. This paper discusses the performance comparison of A-PON and S-PON FTTH architecture as well as its cost. It is established that the relationship between the fiber span and distributed area offered by S-PON is due to the power enhancement boosted by an amplifier. Meanwhile the cost of S-PON will be reasonable if there are enough users sharing the same feeder line or transmission path.
 
Keywords: A-PON, S-PON, FTTH, Performance and Cost.
 

 
TWELVE ANCHOR POINTS DETECTION BY DIRECT POINT CALCULATION
*F. Khalid, **T.M.T Sembok and ***K. Omar
Department of Multimedia, Faculty of Computer Science and Information Technology
Universiti Putra Malaysia, 43400 UPM Serdang, Selangor Darul Ehsan
**Department of Information Science, Faculty of Technology and Information Science
***Deparment of Science and System Management, Faculty of Technology and Information,
Universiti Kebangsaan Malaysia, 43600 UKM Bangi, Selangor Darul Ehsan
Email: tmts@ftsm.ukm.my, fatimahk@fsktm.upm.edu.my,tmts@ftsm.ukm.my, ko@ftsm.ukm.my
 
ABSTRACT FULL TEXT
Facial features can be categorized it into three approaches; Region Approaches, Anchor Point (landmark) Approaches and Contour Approaches. Generally, anchor points approach provide more accurate and consistent representation. For this reason, anchor points approach has been chose to utilize. Although, as the experiment data sets have become larger, algorithms have become more sophisticated even if the reported recognition rates are not as high as in some earlier works. This will cause a higher complexity and computer burden. Indirectly, it also will affect the time for real time face recognition systems. Here, it is proposed the approach of calculating the points directly from the text file to detect twelve anchor points ( nose tip, mouth centre, right eye centre, left eye centre, upper nose and chin). In order to get the anchor points, points for the nose tip have to be detected first. Then the upper nose and face point is localization. Lastly, the outer and inner eyes corner is localized. An experiment has been carried out with 420 models taken from GavabDB in two positions with frontal view and variation of expressions and positions. Our results are compared with three researchers that is similar to and show that better result is obtained with a median error of the eight points is around 5.53mm.
 
Keywords: 3D Face Recognition, 3D Face Detection
 

 
 
WEB CLUSTER LOAD BALANCING VIA GENETIC-FUZZY BASED
Chin Weng Cheong and Lim Hui Lan
Faculty of Information Technology, Multimedia University,
63100 Cyberjaya, Selangor Darul Ehsan
Email:wcchin@mmu.edu.my
 
ABSTRACT FULL TEXT
In this genetic-fuzzy based Generalized Dimension Exchange (GDE) method is proposed to uniformly distribute the unprecedented Web cluster workload. Fuzzy set theory is used to capture the vagueness of the workload during redistribution period. Fuzzy set theory is used to capture the vagueness of the workload during redistribution period. According to the experts’ subjective evaluations, a fuzzy inference system is established to aggregate the fuzzy web performance metrics into a so-called load-weight index which indicates the servers workload intensity. Based on the load-weight index, the genetic-fuzzy algorithm is applied to equally redistribute the workload among in the servers. Finally, a simulation of 20 load-weight indices in a topology of 3-cube form Web cluster is implemented to illustrate the functionality of the proposed method.
 
Keywords: genetic algorithm, fuzzy set theory, generalized dimension exchange, fuzzy inference system, web cluster.

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