Information Technology

Running Head : - Computerized payroll brassProposal for a new Computerized Payroll SystemIntroductionQuest Diagnostics is the nation s leading provider of diagnostic service with a national network of to a greater extent than 30 regional laboratories 150 rapid response laboratories , and over 2 ,000 patient role service centers (Quiet Diagnostics , 2006 . Our company has thousands of employees across the country on its rolls , working at different levels , and performing various functions . To effectively man jump on the salary and wage administration in a complex 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 advantage of such a system 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 hold of vital discipline quickly and in a flexible manner . The system would thus provide constitute savings efficiency of operation , and the power of information 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 nonionised in a convenient manner that provides facilities for searching and modify takes (Mathew Stones 2002 ,.10 . The database is organized into fields or columns that typeset the nature of the information that will be captured , and records or rows that will contain undivided instances of this information . apiece field will stupefy a certain characteristic , and capture a specific attribute . For example , apiece employee has a appoint that needs to be stored in the database . For this purpose , the database would have a field called `name . 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 name 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 efficient and to avoid duplication databases have provision to define primary keys . A primary key uniquely defines each record in the database (Beynon-Davies , 2000 ,.49 . In other words , if in that respect are kelvin records in a database , they should have 1000 separate primary key values , and...If you want to get a full essay, order it on our website: Ordercustompaper.com

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