Information Technology

Running Head : - Computerized payroll brassProposal for a new Computerized payroll SystemIntroductionQuest Diagnostics is the nation s leading provider of diagnostic supporter with a national net recreate of to a greater expiration than 30 regional laboratories 150 rapid response laboratories , and everyplace 2 ,000 patient role service centers (Quiet Diagnostics , 2006 . Our companion has thousands of employees across the country on its rolls , working at varied levels , and performing various functions . To effectively man jump on the requital and w hop on administration in a labyrinthine situation such(prenominal) as this , we need to stash away br an integrated computerized constitution of payroll management that is developed development a good Relational Database Management System . The avail of such a organisati on 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 ascertain of vital discipline quickly and in a negotiable manner . The system would thus provide constitute savings efficiency of operation , and the power of knowledge 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 few(prenominal) common entropybase concepts . A database is a collection of information that is organised in a convenient manner that provides facilities for searching and commute takes (Mathew St integritys 2002 ,.10 . The database is organized into flying eye sockets or columns that casefulset the nature of the information that will be captured , and demeans or rows that will contain united instances of this information . apiece depicted object will stupefy a cer tain characteristic , and capture a specific! evaluate . For example , apiece employee has a appoint that needs to be stored in the database . For this purpose , the database would throw a field called ` propose . 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 t he do 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 cristal alphanumeric characters . Modern databases support variable length commentary (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 capital keys . A primary key uniquely defines each record in the database (Beynon-Davies , 2000 ,.49 . In other words , if in that abide by are kelvin records in a database , they should have special K separate primary key values , and...If you want to modernise a full essay, order it on our website: BestEssayCheap.com
If you want to get a full essay, visit our pa! ge: cheap essay