Computer Science 1032A/B Chapter Notes - Chapter 2: Business Process Model And Notation, Business Process Management, Tim Hortons

• School: Western University
• Department: Computer Science
• Course: Computer Science 1032A/B
• Professor: Shauna Burke

Document Summary

Business process: business process (business system): series of tasks/steps designed to produce a product/service, supply chain - > sales, purchasing, inventory management, ex. What is information: information: knowledge derived from data, data: recorded facts/figures, ex. hourly wage, =information derived from data of individual wages. Characteristics of good information: accurate: good/complete data, processed correctly; be skeptical, timely: produced in time for intended use; ex. monthly statement, relevant: to context & subject; ex. Ceo- list of all employee wages=irrelevant: just barely sufficient: ignore some information, worth its cost: relationship b/w cost of information & its value. How do information systems support business processes: automated system: work formally done by people who followed procedures, hardware - > software - > data - > procedures - > people (fig. 2. 4: counter sales: cashier may not know they are using is; register=changes inventory database when sale is rung in, manual system: accounts payable clerk receives quantity received & shipping invoice in.