ACIS 3504 Lecture Notes - Lecture 8: Database Design, Foreign Key, Data Modeling

• School: Virginia Tech
• Department: Accounting and Information Systems
• Course: ACIS 3504
• Professor: Zhou

Document Summary

System: set of 2 or more interrelated components that interact to achieve goal. Data: facts that are collected, recorded, stored, & processed by info system. Information: data that"s been organized & processed to provide meaning. Info quality decreases, cost of producing info increases. Transaction: agreement b/w 2 entities for exchange of g/s or economic event. Production- give labor & raw materials, get finished goods. Ais: system that collects, records, stores, and processes data to produce info. Provides controls to ensure resources are available & accurate/reliable. Objective of most organizations is to provide value to customers. Value- provided by preforming series of activities to g/s before it"s sold marketing, service purchasing. Data processing cycle: input storage/process output. Input: capture data about business activity, resources, participants. Source docs: sales order form, accurate & complete. Turnaround docs: organization customer, customer organization. Storage: paper based (ledgers, journals) vs computer based account. Subsidiary ledger: detail accounts for general ledger accounts.