ADMS 2511 Chapter Notes - Chapter 4: Relational Database Management System, Sql, Data Degradation

• School: York University
• Department: Administrative Studies
• Course: ADMS 2511
• Professor: Dona Rex

Document Summary

To deal with growth and the diverse nature of digital data, organizations must employ sophisticated techniques for information management. Information technologies and systems support organizations in managing that is, acquiring, organizing, storing, accessing, analyzing, and interpreting data. The first requisite to providing sound information that is useful to managers and staff is that data need to be of high quality, meaning, that should be accurate, complete, timely, consistent, accessible, relevant, and concise. Unfortunately, however, the process of acquiring, keeping, and managing data is becoming increasingly difficult. The difficulties of managing data firstly, the amount of data increases exponentially over time. A lot of historical data must kept for a long time. In addition, data are scattered throughout organizations and collected by many individuals using various methods and devices. Another problem is that data come from multiple sources: internal sources, personal sources, and external sources. Data also comes from the web, in the form of click stream data.