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DHL Worldwide Express migration from legacy system to DBMS Introduction DHL Worldwide Express is the worlds largest and most experienced international air express network with service to more than 675000 destinations in the world DHL maintains its position as the worlds leading international network by continually expanding and upgrading its network of offices hubs services and Information technology and by offering superior service through a well-trained and dedicated work force with total number of 228 countries 3002 stations 63552 employees 18576 vehicles 252 aircraft and 35 hubs DHL sends more than 140 million shipments to destinations throughout the world per year Problem Definition DHL had become aware that its disparate and ageing legacy systems were not adequate to support its leadership of the international air express delivery industry in providing state-of-the-art technology that gives customers easy access to shipping and tracking information shipping billing and data management Justification for Problem Definition DHL has always had IBM mainframes which were having trouble making public information readily available to customers because our mainframe environment was not conductive to providing end user access The hardware ranged around ageing IBM boxes with access through dumb terminals Connections to mainframe were provided by asynchronous parts Several problems arose from this IT solution Primarily DHL was using old technology which in its day was the market leader but which now demands high level of support DHL billing system Sequential file organization at the time of implementation was the market leader in billing applications for the mainframe environment The training and support overheads are very high and skills are difficult to secure Alternatives Organizing data in a traditional file environment Standardize on the Oracle relational database management system RDBMS and Unix Standardize on the Informix relational database management system and Unix Evaluating Alternatives Organizing data in a traditional file environment An effective information system provides users with timely accurate and relevant information This information is stored in
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