Describe the risks associated with missing data and data silos

What will be an ideal response?


Most operational and purchased data have problems that inhibit their usefulness. Purchased data often contain missing elements. Most data vendors state the percentage of missing values for each attribute in the data they sell. For BI applications, though, a few missing or erroneous data points can be worse than no data at all because they bias the analysis.
Another problem is nonintegrated data. A particular BI analysis might require data from an ERP system, an e-commerce system, and a social networking application. It is the function of personnel in the data warehouse to integrate such data, somehow. Nonintegrated data may also be the result of information silos within the organization.

Business

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Because values, customs and even religious beliefs influence laws and legal systems, differences exist from country to country

a. True b. False

Business

Rayco Ski Shop purchased 500 pairs of skis from Skitron. Rayco is located in Colorado. Skitron's business is in Tennessee. The purchase order included the following term: "F.O.B. Colorado." The contract makes no mention of risk of loss or title. The contract can be described as a:

a. shipment contract. b. destination contract. c. bulk transfer. d. sale on approval.

Business

Digital Analytics, Inc, considers the impact of its corporate decisions on various groups and often acts in the interest of a group that has a greater stake in a decision than Digital's shareholders. This approach is most likely to attract potential employees who are

a. investors focused on short-term profits. b. older professionals. c. information technology specialists. d. recent college graduates.

Business

A negotiable instrument is

a. required to be in writing. b. a means of extending credit. c. a substitute for money. d. all of these.

Business