ITM 102 Lecture Notes - Lecture 7: Extranet, Management System, Relational Database

• School: Ryerson University
• Department: Information Technology Management
• Course: ITM 102
• Professor: Franklyn Prescod

Document Summary

Itm102 - business driven information systems - lecture 7: databases and warehouses. Information - data converted into meaningful text. Information granularity - extent of detail within respective information. Real time information - immediate, up-to-date information. Real time system - provides real time information in response to requests. Sources of low quality information have many features. Online customers intentionally enter inaccurate information to protect their privacy. Data or information from different system have different entry standards and formats. Call centre operators enter abbreviated or erroneous information by accident or to save time. Potential business effects resulting from low quality information have many features. Inability to accurately track customers; inability to identify valuable customers; marketing to nonexistent customers; tracking revenue due to inaccurate invoices; and inability to build strong customer relationships. Database - collection of records about various business strategies. Operational information system such as scm and crm maintain access to transactional data in databases.