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Files and Databases Chapter 12 Organizing and Maintaining Digital Data © The McGraw-Hill Companies, Inc., 2000 Database Administration • The DBA has an allencompassing job. Both the Network Administrator and the Database Administrator have the task of maintaining and maximizing systems while maintaining stable and quick access Ch 12 FAQ © The McGraw-Hill Companies, Inc., 2000 2 CCI Database Administration (continued) • Therefore, it is often the very competent Administrator who is never noticed, because everything works. Ch 12 FAQ © The McGraw-Hill Companies, Inc., 2000 3 CCI Database Management Systems • The accumulation of real, accurate, useable data is difficult • Once a database is established, it is only as good as the above factors Ch 12 FAQ © The McGraw-Hill Companies, Inc., 2000 4 CCI Object-Oriented Database • True object-oriented databases can handle the classification and storage of any objects. • In an effort to become competitive, many relational databases have been modified to accept limited types of objects, such as Microsoft Access, which has pictures in its master example, Northwind Ch 12 FAQ © The McGraw-Hill Companies, Inc., 2000 5 CCI OODBMS • Although Microsoft Access has pictures, such modified databases are not fully functional OODBMSs Ch 12 FAQ © The McGraw-Hill Companies, Inc., 2000 6 CCI Access Security • Physical security is the easiest to provide and the easiest to break • Using and changing good passwords should not be a difficult task for people Ch 12 FAQ © The McGraw-Hill Companies, Inc., 2000 7 CCI System Recovery • The number one problem with system recovery is that businesses never really establish a test system to attempt recovery on. Once a year a full and partial recovery should be accomplished. Ch 12 FAQ © The McGraw-Hill Companies, Inc., 2000 8 CCI Mining, Warehouses, “Siftware” • Data mart – is the classification of warehouse into smaller, more numerous management segments • Data must be verified and not assumed to be true just because it came from an extensive search Ch 12 FAQ © The McGraw-Hill Companies, Inc., 2000 9 CCI Privacy Enactment • Privacy Act of 1974, the Freedom of Information Act, and Computer Matching and Privacy Protection Act – these all work, but it generally takes long periods of time for individuals to obtain information Ch 12 FAQ © The McGraw-Hill Companies, Inc., 2000 10 CCI Finance Privacy • If there is an inaccuracy, one avenue is to present your documentation to the company that posted the inaccuracy Ch 12 FAQ © The McGraw-Hill Companies, Inc., 2000 11 CCI Health Privacy • Medical records can be lost – it is a good idea to yearly put a backup copy of your updated medical records in a secure spot other than your home Ch 12 FAQ © The McGraw-Hill Companies, Inc., 2000 12 CCI Employment Privacy • As employees, awareness of these laws are critical – do not assume that a telephone call from an authorized business for employment information is, in fact, from them – Verify the caller before giving out information Ch 12 FAQ © The McGraw-Hill Companies, Inc., 2000 13 CCI