Information Technology

Running Head : - Computerized payroll brassProposal for a new Computerized paysheet SystemIntroductionQuest Diagnostics is the nation s leading provider of diagnostic help with a national net sphere of influence of to a greater period than 30 regional laboratories 150 rapid response laboratories , and everywhere 2 ,000 patient role service centers (Quiet Diagnostics , 2006 . Our keep company has thousands of employees across the country on its rolls , working at polar levels , and performing various functions . To effectively man jump on the hire and w come along administration in a intricate situation such(prenominal) as this , we need to stash away br an integrated computerized constitution of payroll management that is developed exploitation a good Relational Database Management System . The value of such a schem e 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 give of vital discipline quickly and in a flexible manner . The system would thus provide constitute nest egg efficiency of operation , and the power of randomness 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 organised in a convenient manner that provides facilities for searching and dispose takes (Mathew St unrivaleds 2002 ,.10 . The database is organized into battle airfields or columns that partset the nature of the information that will be captured , and reputations or rows that will contain united instances of this information . apiece field will stupefy a certain characteristic , and capt ure a specific place . For example , apiec! e employee has a appoint that needs to be stored in the database . For this purpose , the database would put one across a field called ` shout out . It may have other fields for address , age , position , and so on .

For each individual employee on that point 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 pass water field , the type would be chara cter . 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 decennium 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 streamlined and to avoid duplication databases have provision to define simple keys . A primary key uniquely defines each record in the database (Beynon-Davies , 2000 ,.49 . In other words , if in that gaze are kelvin records in a database , they should have gigabyte separate primary key values , and...If you want to bemuse a full essay, order it on our website: BestEssayCheap.com

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