MSCI 2130 Chapter Notes - Chapter 2: Master Data Management, Data Governance, Data Degradation
10 Feb 2018
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Product sold, vendor, salesperson: transaction data generated and captured by operational systems, des(cid:272)ri(cid:271)es the (cid:271)usi(cid:374)ess"s a(cid:272)tivities or transactions specific data ex. No letters in social security number field: data independence applications and data are independent of one another, all applications can access the same data. The data hierarchy: data are organized in a hierarchy that begins with bits and proceeds all the way to databases, a bit binary digit, represents smallest unit of data a computer can process. Students name, courses taken, date, grade: itunes store song is a field in a record, logical grouping of related records data file or table, database a logical grouping of related files. Offering slight different looks on its web sites. 6: micro segmentation of customers divide them into groups that share one or more characteristics, dividing customers into very small groups or even down to the individual levels, creating new business models ex.
