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Chapter 1. About Data > 1.3 Sources of Data

1.3 Sources of Data

Data need to be assembled, acquired, or collected. Because data represent factual information, data quality is an important issue. Unfortunately, no matter how they were collected, data often contain errors. In this section, various sources of data and their most common advantages and disadvantages are discussed.

1.3.1 Existing Data versus New Data

The data required to proceed to solve a specific problem might already exist within a business or they might be obtained from commercial and noncommercial sources outside the business. The main task with such existing data is to locate them, verify their quality, and use them judiciously.


  

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