Research Volumes Journal of Theoretical and Applied Information Technology (JATIT)- Volume 18 No 2

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Journal receives papers in continuous flow and we will consider articles from a wide range of Information Technology disciplines encompassing the most basic research to the most innovative technologies. Please submit your papers electronically to our submission system at http://jatit.org/submit_paper.php in an MSWord, Pdf or compatible format so that they may be evaluated for publication in the upcoming issue. This journal uses a blinded review process; please remember to include all your personal identifiable information in the manuscript before submitting it for review, we will edit the necessary information at our side. Submissions to JATIT should be full research / review papers (properly indicated below main title).

Journal of Theoretical and Applied Information Technology August 2010 | Vol. 18. No.2

Paper ID:	1392 -JATIT-2K10
Title:	ADOPTION OF INFORMATION TECHNOLOGY SECURITY POLICIES: CASE STUDY OF KENYAN SMALL AND MEDIUM ENTERPRISES (SMES)
Author:	MICHAEL KIMWELE, WAWERU MWANGI, STEPHEN KIMANI
Source:	Journal of Theoretical and Applied Information Technology Vol 18. No. 2 -- 2010
Abstract	The purpose of this paper is to study the adoption of information technology security policies in Kenyan Small and Medium Enterprises (SMEs). Particularly this study looks at whether the roles and responsibilities of Information Technology (IT) security in SMEs are well defined, whether SMEs have a documented information security and are if employees aware of the policy. Further the study finds out whether SME employees are given adequate and appropriate information security education and training, and if employees are well informed as to what is considered acceptable and unacceptable usage of the organization’s information systems. There is evidence from the survey to suggest that IT security policies are not widely adopted and the benefits harnessed by Kenyan SMEs. The survey reveals that much more needs to be done if SMEs are to realize the benefits of information technology without compromising their security status. This is one of the first studies to explore IT security issues in Kenyan SMEs. The survey is likely to assist SME owners, practitioners, and even academicians gauge how effective their information security efforts have been.
Keywords	SMEs, Information Security Policy, Kenya, Information Technology Security
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Paper ID:	1353 -JATIT-2K10
Title:	PERFORMANCE ANALYSIS OF CHAOTIC CHIRP SPREAD SPECTRUM SYSTEM IN MULTIPATH ENVIRONMENT
Author:	THAIR A. SALIH
Source:	Journal of Theoretical and Applied Information Technology Vol 18. No. 2 -- 2010
Abstract	Wireless channels often include multipath propagation, in which the signal has more than one path from the transmitter to the receiver. Atmospheric reflection or refraction, as well as reflection from the ground or from objects such as buildings may cause this phenomena. The aim of this research is to study the effects of multipath environment on the performance of a proposed chaotic chirp spread spectrum system (CCSSS). The benchmark performance of the proposed system is investigated in term of bit error rate (BER) under multipath environment. A Quadrature Phase Shift Keying (QPSK) modulation scheme and a matched filter based on adaptive threshold decision were used in this work. To assess the performance of this system, simulations were performed to compare the proposed system with the traditional frequency modulation differential chaotic shift keying (DCSK) spread spectrum system. The proposed system may be considered as a well qualified communication system in multipath environment.
Keywords	Chirp, Chaotic, QPSK, Matched filter, Spread Spectrum Systems
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Paper ID:	1390 -JATIT-2K10
Title:	ON ANALYSING INTERACTIONS BETWEEN ASPECTS AT REQUIREMENTS PHASE
Author:	AMEL BOUBENDIR, 2ALLAOUA CHAOUI
Source:	Journal of Theoretical and Applied Information Technology Vol 18. No. 2 -- 2010
Abstract	Aspect Oriented software development (AOSD) is an emerging technology, that improve existing paradigms of development, by providing explicit mean to model crosscutting concern (aspect). However, the complexity of interactions among aspects and between aspects and base modules may reduce the value of aspect-oriented separation of cross-cutting concerns. Aspects must be identified as early possible in the life cycle. Interactions analysis, as well, is desirable to be done as early as possible in the life cycle. In this paper we propose a technique during the requirement phase that allows the user to analyse interactions between aspects, identify aspects interactions, detect and resolve conflicts between them based on the search of Hamiltonians paths. The technique is generic since it exploits the dependencies generated by the operators such as before, after, around and replace. It uses the specification of composition of aspects to analyse aspects and produce rules of composition witch may be used to compose or guide the process of composition. The technique is illustrated through examples.
Keywords	Aspects, Aspect oriented development, Requirement phase, Aspects Interactions
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Paper ID:	1396 -JATIT-2K10
Title:	A TEST GENERATION METHOD BASED ON STATE DIAGRAM
Author:	NICHA KOSINDRDECHA, 2JIRAPUN DAENGDEJ
Source:	Journal of Theoretical and Applied Information Technology Vol 18. No. 2 -- 2010
Abstract	In general, the software testing phase takes around 40-70% of the time and cost during the software development life cycle. Software testing is well researched over a long period of time. Unfortunately, while many researchers have found an efficient test case generation methods to minimize time and cost, there are still a number of important research issues. The primarily issue that motivated this study is to: consume a great amount of time and cost to automatically generate tests from diagrams, with a huge size of tests and less test coverage. Therefore, this paper introduces an effective test sequence generation technique to minimize time, cost and size of tests while maximizing test coverage. The proposed technique aims to derive and generate tests from state chart diagram. The diagram is widely-used to describe a behavior of the system. In addition, this paper discusses and determines the best effective test generation methods that derive tests from diagrams.
Keywords	test generation technique, generate test from state diagram, test case generation, test data generation and test sequence generation
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Paper ID:	1397 -JATIT-2K10
Title:	TEST CASE PRIORITIZATION TECHNIQUES
Author:	SIRIPONG ROONGRUANGSUWAN, JIRAPUN DAENGDEJ
Source:	Journal of Theoretical and Applied Information Technology Vol 18. No. 2 -- 2010
Abstract	Software testing has been proven that testing, analysis, and debugging costs usually consume over 50% of the costs associated with the development of large software systems. Many researchers have found several approaches to schedule an order of test execution. Unfortunately, existing test prioritization techniques are failed to prioritize multiple test suites and test cases with same priority values. Consequently, those techniques are inefficient to prioritize tests in the large commercial systems. They incorrectly schedule tests and the cost is overrun during the prioritization process. Thus, this paper proposes two new efficient prioritization methods to address the above issues. The first method aims to resolve the problem of many test cases assigned the same weight values. The second method is developed to effectively prioritize multiple suites. As a result, this paper discusses an ability to reserve high prioritize tests in multiple suites while minimizing a prioritization time.
Keywords	Test Case Prioritization, Test Prioritization Methods, Test Prioritization Comparison, Multiple Test Prioritization And Test Suite Prioritization
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Paper ID:	1413 -JATIT-2K10
Title:	SEMANTIC WEB AND ECONOMIC AND FINANCIAL INFORMATION MANAGEMENT
Author:	N K PRASANNA, ANJANEYULU ANNA, SHASI M
Source:	Journal of Theoretical and Applied Information Technology Vol 18. No. 2 -- 2010
Abstract	The field of economy and finance is a conceptually rich domain where information is complex, huge in volume and a highly valuable business product by itself. Novel management techniques are required for economic and financial information in order to enable an effective generation, gathering, integration, management and consumption of complex and big volumes of rich information. While the information integration problem is common to all business areas, it becomes apparent in the financial area, where information coming from multiple sources has to be homogenized in order to facilitate analysis and to provide a uniform view of the business e.g. via a balance scorecard. In addition, financial information is subject to official supervision e.g. by central banks. As a consequence, the required information has to be obtained, homogenized following the supervisor rules, and validated, guaranteeing its quality. In this paper, we present part of our experience in the use of semantic Web technologies for the management of economic and financial information and the problems encountered. In addition, we briefly introduce XBRL, a language that has gained a big momentum for business reporting, and compare the paths followed by the XBRL community and the semantic Web community.
Keywords	Semantic Web, Economic Management, Financial Management
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Paper ID:	1362 -JATIT-2K10
Title:	UTRAN CRYPTOGRAPHIC ALGORITHMS VERIFICATION AND IMPLEMENTATION
Author:	GHIZLANE ORHANOU, SAÏD EL HAJJI, JALAL LAASSIRI, YOUSSEF BENTALEB
Source:	Journal of Theoretical and Applied Information Technology Vol 18. No. 2 -- 2010
Abstract	In the present paper, we are interested in Universal Mobile Telecommunications System (UMTS) Access Network security. A special interest is given to the protection of the data integrity and the provisioning of data encryption. Indeed, the appropriate procedures and cryptographic algorithms are discussed. In previous work, we were interested in the study of the operation and complexity of the algorithms, but actually we will focus on other aspects. A closer look is taken at the two sets of UMTS cryptographic algorithms: UEA1/UIA1 (UEA indicates UMTS Encryption Algorithm and UIA UMTS Integrity Algorithm) based on the KASUMI algorithm and UEA2/UIA2 based on the SNOW 3G algorithm. Furthermore, this paper includes the results of the verification and the implementation of the two sets of the UMTS cryptographic algorithms. The necessary corrections and/or adaptation of the 3GPP algorithms codes having carried out to meet the 3GPP algorithms specifications. Furthermore, we propose an adaptation of the second set of algorithms to the little-endian machines since the 3GPP proposed codes are only limited to the big-endian machines. These corrections and adaptations are presented in the present paper and some implementation examples are presented as well.
Keywords	UMTS, Confidentiality, Integrity, SNOW 3G, Verification, Implementation
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Paper ID:	1414 -JATIT-2K10
Title:	FOSTERING SUSTAINABILITY OF THE SUPPLY CHAIN THROUGH ADOPTION OF THE STATE EXPLICIT PROCUREMENT STRATEGY - A MATHEMATICAL APPROACH USING ANALYTICAL HIERARCHY PROCESS
Author:	R. S. BINDU, B. B. AHUJA
Source:	Journal of Theoretical and Applied Information Technology Vol 18. No. 2 -- 2010
Abstract	Despite the impressive success of JIT programmes, many companies still use the traditional approach to determine their purchase orders. This is particularly true for small manufacturing firms who cannot effectively implement JIT purchasing. Manufacturing companies that use economic order quantity (EOQ) purchasing, either classical EOQ model or a variation thereof, increasingly are faced with the decision of whether or not to switch to the just-in-time (JIT) purchasing policy. This is a complex decision, requiring careful examination of each system and its possible impact on a variety of factors, such as cost, quality, and flexibility of the operations. Though JIT purchasing should be the goal of all the organizations for all the items, it is not feasible /economical to implement JIT under all the circumstances. In this paper a model is developed to identify the suitability of an outsourced item for JIT purchasing. The study is basically qualitative and exploratory in nature. The Methodology developed will be useful for industries to select a proper purchase policy for an outsourced item. The proposed approach is very well explained with the help of live case study.
Keywords	JIT (Just in Time) Procurement Policy, Situation Specific Policy, Analytical Hierarchy Process (AHP), EOQ (Economic Order Quantity) Model, JIC (Just in Case) Procurement Policy, MADM (Multi Attribute Decision Making), State Explicit Policy
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Paper ID:	968 -JATIT-2K10
Title:	A PERSPECTIVE OF DATA MINING METHOD BASED ON DRBF NEURAL NETWORKS
Author:	S. SAI SATYANARAYANA REDDY, P.ASHOK REDDY, V.KRISHNA REDDY
Source:	Journal of Theoretical and Applied Information Technology Vol 18. No. 2 -- 2010
Abstract	Recently there has been significant advances in the use of wavelet network methods in various data mining processes, With the extensively application of many databases and sharp development of Internet, The capacity of utilizing information technology to fabricate and collect data has improved greatly. It is an imperative problem to mine useful information or knowledge from large databases or data warehouses. Therefore, data mining technology is urbanized rapidly to meet the need. But data mining often faces so much data which is raucous, disorder and nonlinear. Providentially, ANN is suitable to solve the before-mentioned problems of DM because ANN has such merits as good vigor, flexibility, parallel-disposal, distributing-memory and high tolerating error. This paper gives a detailed discussion about the relevance of ANN method used in DM based on the analysis of all kinds of data mining technology, and especially lays stress on the categorization Data Mining based on RBF neural networks. Pattern classification is an important part of the RBF neural network function. Under on-line environment, the training dataset is variable, so the batch learning algorithm which will generate plenty of surplus retraining has a lower efficiency. an suitable metric for imbalanced data is applied as a filtering technique in the context of Nearest Neighbor rule, to improve the classification accuracy in RBF and MLP neural networks This paper deduces an incremental learning algorithm from the gradient descend algorithm to improve the blockage. ILA can adaptively adjust parameters of RBF networks driven by minimizing the error cost, without any surplus retraining. Using the method projected in this paper, an on-line cataloging system was constructed to resolve the IRIS classification problem.
Keywords	Data Dredging, Data Warehousing Concepts, PNN/GRNN networks ,Intrusion Detection, Information Security, and Data Networks Security, schooling algorithm Neural Networks, RBF Neural Networks.
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Paper ID:	1388 -JATIT-2K10
Title:	INFORMATION RETRIEVALS TRIES TREE VS INVERTED FILE WORD METHOD FOR ARABIC LANGUAGE
Author:	Dr. KHALAF KHATATNEH IMAN HUSSEIN
Source:	Journal of Theoretical and Applied Information Technology Vol 18. No. 2 -- 2010
Abstract	One of the key challenges of managing very huge volumes of data in scalable Information retrieval systems is providing fast access through keyword searches. The major data structure in the information retrieval system is an inverted file, which records the positions of each term in the documents. When the information set substantially grows, the number of terms and documents are significantly increased as well as the size of the inverted files. In this research we implement to techniques of inverted file -posting list and Tries trees- on Arabic Language, then we will try to state the optimum technique to store the vocabulary according to the speed of retrieving queries from the collection of documents.
Keywords	Inverted File(Word Method),Tries Tree ( B+ tree), Information Retrieval, Posting List, Indexing, Depth-First Algorithm, Vocabulary, Stopword.
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