Information Technology

Running Head : - Computerized payroll brassProposal for a new Computerized paysheet SystemIntroductionQuest Diagnostics is the nation s leading provider of diagnostic serving with a national net feed of to a greater purpose than 30 regional laboratories 150 rapid response laboratories , and over 2 ,000 patient role service centers (Quiet Diagnostics , 2006 . Our fraternity has thousands of employees across the country on its rolls , working at incompatible levels , and performing various functions . To effectively man jump on the pay and w rent on with administration in a hard situation such(prenominal) as this , we need to stash away br an integrated computerized constitution of payroll management that is developed apply a good Relational Database Management System . The reinforcement of such a organisation would b e 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 reach of vital discipline quickly and in a flexible manner . The system would thus provide constitute savings efficiency of operation , and the power of teaching 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 few common entropybase concepts . A database is a collection of information that is unionised in a convenient manner that provides facilities for searching and convert takes (Mathew St mavins 2002 ,.10 . The database is organized into knit stitchs or columns that faceset the nature of the information that will be captured , and shows or rows that will contain united instances of this information . apiece welkin will stupefy a certain characteristic , and capture a specific pass judgme nt . For example , apiece employee has a a! ppoint that needs to be stored in the database . For this purpose , the database would flummox a knit called ` visit . It may have other fields for address , age , position , and so on .

For each individual employee at that place 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 cry field , the type would be character . Each f ield 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 hug drug 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 cost-effective and to avoid duplication databases have provision to define ancient keys . A primary key uniquely defines each record in the database (Beynon-Davies , 2000 ,.49 . In other words , if in that delight in are kelvin records in a database , they should have gramme separate primary key values , and...If you want to get a full essay, order it on our website: BestEssayCheap.com

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