Mohammed Al-Badawi

A performance evaluation of a new bitmap-based XML processing approach over RDBMS

This paper presents a comprehensive performance analysis of PACD; a novel bitmap-based XML processing approach introduced earlier to resolve several performance issues identified in existing XML database technology. The study evaluated three performance aspects of XML database techniques including query processing, XML updates and scalability. Each of these aspects has been tested using various measures and compared with some representative alternative approaches. Despite its narrow domain for the order-access queries and its high cost in terms of the number IO-read operations, PACD almost performed well in terms of query processing, resource consumption during XML updates and has shown acceptable scalability over a variety of XML database categories.

Exploring the main building blocks of SOA method: SOA maturity model perspective

The most successful enterprises plan its SOA adoption process as a series of maturity stages, where each stage acts as a foundation for the next. Various SOA maturity models (SOAMMs) are available to judge the current level of SOA adoption maturity of an enterprise. However, only a very few models review the formal use of SOA methods in the maturity assessment process. In this work, the SOAMMs are evaluated in terms of how they assess the methodological aspects of SOA adoption at each level of maturity. Based on methodical features, we introduce a set of building blocks for different maturity levels to assist the method engineers in SOA method definition. Welke’s SOAMM is selected as a base model to derive maturity guidelines for SOA methods. This work establishes the role of SOAMM in realizing the true potential of SOA and discusses why CMMI models are inapplicable to assess SOA adoption maturity. The main intention of this work is to develop a conceptual framework that describes the building block of SOA methods at different levels of maturity, including their processes, tools and technologies, and sourcing mechanisms. We adopt a real case study to determine the maturity level of SOA methodology dimension and to demonstrate how SOA adoption maturity can be improved by focusing on the methodical building blocks identified.

Business Process Reengineering Using Enterprise Social Network

Organizations are using business process reengineering methods to improve their products and services in term of quality, speed and cost. This work uses the BPR methods to examine the impact of integrating and using Enterprise Social Network BP with classical BP on the performance and cost of the Innovation and Support Center (ISC) service delivery. The method specifies the process to be reengineered, proposes alternative automated processes generated from ESN used by the Center and simulate the new proposed reengineered business process. The result shows that the reengineering of current business process using ESN business process is improving the Center services by delivering faster service with lower cost.

Towards a comprehensive XML benchamrk

XML benchmarks are tools used for measuring and evaluating the performance of new XML developments such as XML/RDBMS/OO mapping techniques and XML storages. With XML benchmarks, the evaluation process is done by executing predefined query-set over the benchmarks dataset members; where the performance of the new development is compared against the performance of some existing techniques. Yet, none of the existing XML benchmarks seems directly investigated the effect of sought data location on the query performance. This research is an attempt to investigate the rationale of adding the Data Dimension (DD) to the 3D~XBench features. To achieve this, a new set of queries was added to the query-set of the 3D~XBench to test the effect of changing the location of the sought records. The preliminarily experimental results have shown that the query execution time is also driven by the location of the sought data in the underlying XML database; and therefore, the Data Dimension can be added to the existing features of the 3D