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Information Technology (IT) has revolutionized the world economy in the past few decades by practically changing the economic activities globally. Given its applicability in various manufacturing and services sectors, IT has significantly affected the economy by providing information and development content on products and processes. Accordingly, faster rates of output and productivity growth have become the trends of information processing and communications. In the United States (US), the substantial growth in both the Labor Productivity (LP), and the Multi-Factor Productivity (MFP) after 1995 proves the significance of automation. It proves that IT has definitely steered the economical advancement of industrialized nations such as the US and the United Kingdom (UK). Unfortunately the same conclusion can not be reached for developing countries. For instance, India and Ghana have yet to achieve significant economical advancement through the use of IT. To address this issue, we propose: An Economic Development Model Based on IT for Developing Countries (EDM-BITDC). Major components of the EDM-BITDC include, Large Foreign Investments (LFIs), Government policies and support for IT, Social awareness of IT importance, and Efficient use of IT.EDM-BITDC provides an answer to the concerns of poor nations. It suggests that governments of these nations entice LFIs in the field of IT. Implementation of EDM-BITDC in DC economies is expected to result in tremendous achievement in conformity with what has already been summarized as success stories of US and UK.

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Abstract─Multimedia applications require from wireless communications service providers to support service mix traffic (voice, data, and real time audio/video) to the end wireless subscriber. Wideband Code Division Multiple Access (WCDMA) has been chosen as a basic radio access technology for the Universal Mobile Telecommunications System/ International Mobile Telecommunications-2000 (UMTS/IMT-2000)[1] to support multimedia services. Throughput and spectral efficiency are fundamental parameters in capacity planning for 3G cellular network deployments. In this paper, we investigate the downlink (DL) aggregate user average throughput and spectral efficiency performance of the standard universal mobile telecommunications system terrestrial radio access WCDMA frequency-division duplex (UTRA WCDMA FDD) system for different scenarios of user population density, coverage area and frequency reuse factor in a cellular environment. A standard 19-basestation cellular architecture is used in our analysis. Our analysis reveals that the aggregate user throughput performance is fluctuating as a result of changes in cell size, channel bandwidth, frequency reuse and subscribers density. Therefore, very careful network capacity planning is needed in order to operate the WCDMA FDD networks in a cost-effective manner.

Abstract-Web applications incorporate important business assets and offer a convenient way for businesses to promote their services through the internet. Many of these web applications have evolved from simple HTML pages to complex applications that have high maintenance cost. The high maintenance cost of web applications is due to the inherent characteristics of web applications, to the fast internet evolution and to the pressing market which imposes short development cycles and frequent modifications. In order to control the maintenance cost, quantitative metrics and models for predicting web applications' maintainability must be used. Since, web applications are different from traditional software systems, models and metrics for traditional systems can not be applied to web applications. The reason for that is that web applications have special features such as hypertext structure, dynamic code generation and heterogenousity that can not be captured by traditional and object-oriented metrics. In this paper, we will provide a comparative analysis of the different approaches for predicting web applications' maintainability and point out areas that need further research.