Flashcards on MIS Chapter 9
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________ process operational and other data in organizations to analyze past performance and make predictions
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Business intelligence systems
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Which of the following statements is true of business intelligence (BI) systems?
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Business intelligence systems analyze an organization's past performance to make predictions
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________ is the process of obtaining, cleaning, organizing, relating, and cataloging source data.
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Data acquisition
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Which of the following is a fundamental category of business intelligence (BI) analysis?
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Data mining
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Which of the following activities in the business intelligence process involves delivering business intelligence to the knowledge workers who need it?
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Publish results
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________ is the process of delivering business intelligence to users without any request from the users.
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Push publishing
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________ requires users to request business intelligence results
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Pull publishing
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The use of an organization's operational data as the source data for a BI system is not usually recommended because it ________.
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Requires considerable processing and can drastically reduce system performance
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A ________ is a facility for managing an organization's business intelligence data.
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Data warehouse
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The source, format, assumptions, constraints, and other facts concerning certain data are called ________.
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Metadata
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Problematic data are referred to as ________.
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Dirty data
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Which of the following problems is particularly common for data that have been gathered over time?
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Lack of consistency
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________ refers to the level of detail represented by data.
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Granularity
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Which of the following statements is true of data with granularity?
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Granularity refers to the level of detail represented by the data
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The more attributes there are in a sample data, the easier it is to build a model that fits the sample data, but that is worthless as a predictor. Which of the following best explains this phenomenon?
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The curse of dimensionality
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A ________ is a data collection that addresses the needs of a particular department or functional area of a business.
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Data mart
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The purpose of a ________ is to extract data from operational systems and other sources, clean the data, and store and catalog that data for processing by business intelligence tools
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Data warehouse
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Users in a data mart obtain data that pertain to a particular business function from a ________.
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Data warehouse
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Which of the following statements is true of a data warehouse?
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A data warehouse is larger than a data mart.
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________ is the process of sorting, grouping, summing, filtering, and formatting structured data
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Reporting analysis
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Which of the following refers to data in the form of rows and columns?
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Structured data
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The goal of ________, a type of business intelligence analysis, is to create information about past performance.
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Reporting
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________ are reports produced when something out of predefined bounds occurs.
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Exception reports
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________ is the application of statistical techniques to find patterns and relationships among data for classification and prediction.
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Data mining
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________ techniques emerged from the combined discipline of statistics, mathematics, artificial intelligence, and machine-learning.
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Data mining
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Which of the following statements is true of unsupervised data mining?
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Analysts create hypotheses only after performing an analysis.
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________ is an unsupervised data mining technique in which statistical techniques identify groups of entities that have similar characteristics.
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Cluster analysis
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In the case of ________, data miners develop models prior to conducting analyses and then apply statistical techniques to data to estimate parameters of the models.
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Supervised data mining
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Regression analysis is used in ________.
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Supervised data mining
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________ is used to measure the impact of a set of variables on another variable during data mining.
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Regression analysis
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Which of the following statements is true of BigData?
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BigData refers to data sets that are at least a petabyte in size.
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In the ________ phase, a BigData collection is broken into pieces and hundreds or thousands of independent processors search these pieces for something of interest.
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Map
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The results generated in the Map phase are combined in the ________ phase
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Reduce
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________ is an open-source program supported by the Apache Foundation that manages thousands of computers and implements MapReduce.
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Hadoop
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Which of the following statements is true of Hadoop?
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Hadoop is an open-source program that implements MapReduce
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________ are business intelligence documents that are fixed at the time of creation and do not change.
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Static reports
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________ reports are business intelligence documents that are updated at the time they are requested
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Dynamic
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________ are user requests for particular business intelligence results on a particular schedule or in response to particular events.
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Subscriptions
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Which of the following statements is true of business intelligence (BI) publishing alternatives?
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Publishing dynamic BI is more difficult than publishing static content
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The ________ of business intelligence servers maintains metadata about the authorized allocation of business intelligence results to users.
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Management function
