Information Technology

Running Head : - Computerized payroll brassProposal for a new Computerized payroll department SystemIntroductionQuest Diagnostics is the nation s leading provider of diagnostic proceeds with a national net wrench of to a greater conclusion than 30 regional laboratories 150 rapid response laboratories , and over 2 ,000 patient role service centers (Quiet Diagnostics , 2006 . Our connection has thousands of employees across the country on its rolls , working at variant levels , and performing various functions . To effectively man jump on the payment and w fester administration in a compound situation such(prenominal) as this , we need to stash away br an integrated computerized constitution of payroll management that is developed employ a good Relational Database Management System . The wages of such a ashes would be that the care for of salary administration would be fast , error-free , and involve scant(p) manual work . The system would also help us to take block of vital discipline quickly and in a conciliatory manner . The system would thus provide constitute savings efficiency of operation , and the power of reading exactly as we need it and when we need itA a couple of(prenominal) Database conceptsIn to appreciate how the system would help the company , it is necessary to understand a a couple of(prenominal) common entropybase concepts . A database is a collection of information that is organized in a convenient manner that provides facilities for searching and change takes (Mathew Stvirtuosos 2002 ,.10 . The database is organized into celestial spheres or columns that fictional characterset the nature of the information that will be captured , and track records or rows that will contain united instances of this information . apiece case will stupefy a certain cha racteristic , and capture a specific put . ! For example , apiece employee has a appoint that needs to be stored in the database . For this purpose , the database would squander a stadium called ` work . It may have other fields for address , age , position , and so on .

For each individual employee thither will be one record that will have the values applicable to the particular employee against each of the fields . each(prenominal) field will have certain characteristics associated with it . The first of these is the data type of the field . Databases support a number of types such as numeric , character , and Boolean . In the drive of the pertain fiel d , the type would be character . Each field also has a distance associated with it . This represents the maximum continuance that is permitted for this field . For example , the employee code may consist of four to ex alphanumeric characters . Modern databases support variable length rendering (for example , Oracle has the varchar ) so that the space intermeshed in the database is restricted to the actual length of each record (Mathew Stones , 2002 , pp .27-28 . This is one advantage of using a DatabaseIn to make searches more efficient and to avoid duplication databases have provision to define primitive keys . A primary key uniquely defines each record in the database (Beynon-Davies , 2000 ,.49 . In other words , if in that adore are kelvin records in a database , they should have grounds separate primary key values , and...If you want to lay out a full essay, order it on our website: OrderCustomPaper.com

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