Ejaz Ahmed

King Fahd University of Petroleum and Minerals, Az̧ Z̧ahrān, Eastern Province, Saudi Arabia

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Publications (6)0 Total impact

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    ABSTRACT: An increasing number of grid applications manage data sharing using software toolkits such as Globus toolkit and OGSA-DQP. These toolkits lack in performing tasks of mapping and matching. The main argument of this paper is that complexities of data mapping and matching should be transparent to grid applications, through a layer of virtualisation services. We start by discussing the prototyping development of software toolkit. This toolkit uses pseudocode mapping and matching algorithms in the context of grid. A service-based generic strategy of data mapping, matching and data loading with grid staging catalogue service (MML- GSCATS) is introduced. We have developed a prototype application ArabGrid toolkit that helps in MML processes. We also discuss benchmarks such as performance, reliability and error detections using healthcare case study. These benchmarks help in comparing MML-GSCATS methodology with traditional methods. Keywords-components: Grid, Data Integration, Metadata, Web services, Staging DBMS, Virtual Organisation, Pattern Matching. I. INTRODUCTION The importance of information technology as a key enabler is crucial in meeting the challenges of the 21st century and integrated shared commitments to deploy sophisticated solutions. Recently, Junnarkar writes, "Hospitals and physicians have long been on the technological cutting edge when it comes to medical procedures and lab research. Yet by comparison, they have been glaringly remised in regard to information technology: It's not unusual for supermarkets to have more advanced infrastructures than hospitals" (7). The benefits of medical information integration are frequently pointed out and there are various references describing how integration can be achieved. This paper describes the prototyping components of data integration in terms of MML-GSCATS (15) - a modular, extensible, platform-independent environment for information integration and data-driven knowledge acquisition from heterogeneous, distributed, autonomous information sources. MML can accelerate the pace of discovery in emerging data rich domains or virtual organisations (VOs) (e.g., health care sciences, biological sciences, atmospheric sciences, economics, defense etc.) by enabling data sharing seamlessly. Specifically, a prototype has been developed as part of the product design process. The development is informed via a case study that allows exploration of the design alternatives, testing of MML algorithms and confirming performance prior to testbed experimentation. The standard strategy adopted is to design, test, evaluate and then modify the design based on analysis of the prototype. An interaction of MML-GSCATS and OGSA-DAI is established by considering MML as a VO. A prototype in the form of a layer of grid data virtualisation services provides such transparency. These services support federated access to distributed data, dynamic discovery of data sources by content, dynamic migration of data and federated collaboration. With this in mind, the paper makes the following main contributions: 1. It discusses issues and requirements of data mapping and loading arising from constructing a grid health information network in Saudi Arabia.
    25th IEEE International Conference on Advanced Information Networking and Applications Workshops, WAINA 2011, Biopolis, Singapore, March 22-25, 2011; 01/2011
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    ABSTRACT: With the proliferation of international standards for grid-enabled databases, the need for data loading and mapping is identified. It is required in a large integrated environment encompassing heterogeneous databases. This research study proposes an intermediate staging facility in order to upload and integrate data from various small to large size data repositories. The proposed facility has been employed to temporarily store and process the data before it is validated. This research expands the integration notion of a database management system (DBMS) to include the data loading, data matching and transformation processes in traditional and grid distributed environments. The data mapping is employed in the form of value correspondences by using a staging DBMS. A service-based generic strategy grid staging catalogue service (GSCATS) is introduced. It consolidates distinct catalogue schemas of federated databases to access information seamlessly. It involves data mapping and matching of structure objects of federated databases.
    24th IEEE International Conference on Advanced Information Networking and Applications, AINA 2010, Perth, Australia, 20-13 April 2010; 01/2010
  • Ejaz Ahmed, Nik Bessis, Yong Yue
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    ABSTRACT: Interactive user interfaces are important in user friendly software development. This paper proposes an approach of introducing a specific user interface. This interface is specifically developed a diagnosis screen to enter efficiently patient's diagnosis details. We discuss various aspects and techniques for providing efficient way to enter diagnosis details in a very effective manner. However, there are few facilities in user interface development that are being covered and analyzed. We discuss methods for providing automatic data view by focusing on efficient design and effective viewing strategies so that user can fill up related information with less typing efforts. Various drag and drop pop up window-screens are provided to enhance various user interface styles. Data manipulation and data extraction features are introduce to manage a link with user interface for the user's better interaction.
    Fifth IEEE International Conference on Digital Information Management, ICDIM 2010, July 5-8, 2010, Lakehead University, Thunder Bay, Canada; 01/2010
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    ABSTRACT: Much work has been done in the area of data access and integration using various data mapping, matching, and loading techniques. One of the main concerns when integrating data from heterogeneous data sources is data redundancy. The concern is mainly due to the different business contexts and purposes from which the data systems were originally built. A common process for accessing data from integrated databases involves the use of each data source's own catalogue or metadata schema. In this article, the authors take the view that there is a greater chance of data inconsistencies, such as data redundancies when integrating them within a grid environment as compared to traditional distributed paradigms. The importance of improving the data search and matching process is briefly discussed, and a partial service oriented generic strategy is adopted to consolidate distinct catalogue schemas of federated databases to access information seamlessly. To this end, a proposed matching strategy between structure objects and data values across federated databases in a grid environment is presented.
    IJGHPC. 01/2010; 2:51-64.
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    ABSTRACT: With the proliferation of international standards for grid-enabled databases, the need for data loading and data mapping in a large integrated environment of heterogeneous databases highlights issues of consistency and integrity. We discuss methods for providing semi-autonomous data integration by focusing on efficient data loading design and effective mapping strategies. In order to upload and integrate data from various small to large size data repositories, an intermediate staging facility is employed to temporarily store data before it is validated to ensure accurate and useful integration into the target data source. We propose a mechanism that semi-automates the integration process that includes not only new data, but legacy data as well. We expand the notation of a database management system (DBMS) to include the management of the data transfer or data transformation processes. The DBMS now must perform the task of data mapping in the form of value correspondences by using a staging schema or staging DBMS mapping procedure.
    Electrical and Computer Engineering, 2008. CCECE 2008. Canadian Conference on; 06/2008
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    ABSTRACT: Accessing integrated databases leads to the performance of searching and matching of data. Data can be redundant and found with different business contexts in different integrated databases. Usually, accessing data from integrated databases is accomplished by using each databasepsilas own catalogue or metadata schema. A generic strategy is adopted to consolidate distinct catalogue schemas of federated databases to access information seamlessly. This strategy involves matching of structure objects and data values across federated databases in a grid environment. In this paper, the concept of grid services is introduced to manage the importance of data search and matching within an OGSA-DAI (open grid services architecture - data access integration) environment.
    Third IEEE International Conference on Digital Information Management (ICDIM), November 13-16, 2008, London, UK, Proceedings; 01/2008