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The Implementation of a Computerized Database - Essay Example

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The paper "The Implementation of a Computerized Database" describes that an employee is considered a super-type entity with pilot and crew as its subtypes. The reason for this is the existence of special attribute pilot-age hours of ship captains and first officers…

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The Implementation of a Computerized Database

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Subject: Information Technology
Type: Essay
Level: Masters
Pages: 1 (250 words)
Downloads: 2
Author: rosannadoyle

Extract of sample "The Implementation of a Computerized Database"

A database will help to make the report generation process faster with the use of correct report-generating programs. The management will have the option of having up-to-date information when it comes to decision-making in Lanchester Liners. Since all the data is retrieved from a central database, the consistency of the data is guaranteed. It becomes a clear advantage of a database since manual file systems are vulnerable to duplicated data. The security of data can also be enhanced with the implementation of a database using passwords and other security protocols. For this company, a computerized database will make the data available to remote locations such as to a ship in the middle of a journey using modern communication technology.

The transition from a manual file system to a database system will make the company concentrate on staff training and spending on hardware and software. The company also has employee new team of professionals to maintain the technical aspects of the database. These two factors can be considered as the drawback occurring from the implementation of a database.

The Business rules of the system

Following Business rules have been identified according to the interview conducted with Lanchester Liners Company.
1. A ship can have several itineraries from time to time and several ships can be on the same itinerary.
2. A cruise may have at least one itinerary or more and an itinerary of one or more cruises.
4. Many employees are assigned to one ship at a time and an employee works on one particular ship at a time.
5. A passenger may book several excursions and a particular excursion may be booked by several passengers.

6. A Passenger may be on many cruises from time to time. A cruise takes many passengers.
7. An itinerary consists of several excursions and an itinerary may share several excursions.
8. Excursion consists of many attractions. An attraction is limited to only one excursion.
9. Some passengers may also lecture other passengers. Read More

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