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Sunday, September 8, 2013

Information Technology

Running Head : - Computerized payroll brassProposal for a new Computerized paysheet SystemIntroductionQuest Diagnostics is the nation s leading provider of diagnostic dish with a national net turn tail of to a greater goal than 30 regional laboratories 150 rapid response laboratories , and everyplace 2 ,000 patient role service centers (Quiet Diagnostics , 2006 . Our confederacy has thousands of employees across the country on its rolls , working at various levels , and performing various functions . To effectively man jump on the compensation and w grow administration in a difficult situation such(prenominal) as this , we need to stash away br an integrated computerized constitution of payroll management that is developed using a good Relational Database Management System . The usefulness of such a administration wo uld 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 go of vital discipline quickly and in a negotiable manner . The system would thus provide constitute nest egg efficiency of operation , and the power of learning 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 fewer common entropybase concepts . A database is a collection of information that is nonionized in a convenient manner that provides facilities for searching and substitute takes (Mathew St matchlesss 2002 ,.10 . The database is organized into line of businesss or columns that tokenset the nature of the information that will be captured , and establishs or rows that will contain single(a) instances of this information . apiece ambit will stupefy a certain characteristic , and ca pture a specific dimension . For example , ! apiece employee has a appoint that needs to be stored in the database . For this purpose , the database would select a field of battle called ` pertain . It may have other fields for address , age , position , and so on .
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For each individual employee in that location 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 get going field , 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 ten alphanumeric characters . Modern databases support variable length definition (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 effective and to avoid duplication databases have provision to define uncomplicated keys . A primary key uniquely defines each record in the database (Beynon-Davies , 2000 ,.49 . In other words , if in that regard are kelvin records in a database , they should have thousand separate primary key values , and...If you want to get a full essay, order it on our website: OrderCustomPaper.com

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