Computer Science 1032A/B Chapter Notes - Chapter 8: Olap Cube, Russell L. Ackoff, Online Analytical Processing

• School: Western University
• Department: Computer Science
• Course: Computer Science 1032A/B
• Professor: Diane Goldstein

Document Summary

Chapter 8 decision making and business intelligence: what are the challenges managers face in making decisions. Russell ackoff article; management misinformaton systems. Non profit org can process donation without knowing donor"s gender or age data mining app will suffer if values are missing: inconsistent data common in data gathered over time, ex. Changed phone number: data not integrated, wrong granularity refers to degree of summarization or detail, coarse data: highly summarized, fine detail express precise detail, ex. Oltp systems backbone of all functional, cross function and interorganizational systems in company. Designed to efficiently enter, process and store data. Combine large databases with efficient input devices such as grocery store scanners, cash registers, etc to process transactions quickly and accurately. Although we like to think of data as an asset, we don"t really treat them like an important resource. Decision support systems (dss) or online analytic processing (olap): systems that focus on making.