Pkg Acc Infor Systems MS VISIO CD
10th Edition
ISBN: 9781133935940
Author: Ulric J. Gelinas
Publisher: CENGAGE L
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Question
Chapter 4, Problem 1DQ
Summary Introduction
To discuss: The given statement.
Introduction: A Data Flow Diagram (DFD) helps to portray the components of the system. A DFD includes storage of data, sources, and destinations. It would represent the data flows among the system components graphically.
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Which statement is NOT true? a. Drill-down capability is an OLAP feature of data mining tools available to the user. b. The data warehouse should be separate from operational systems. c. Denormalization of data involves dividing the data into very small tables that support detailed analysis. d. Some decisions supported by a data warehouse are not fundamentally different from those that are supported by traditional databases. e. Data cleansing involves transforming data into standard business terms with standard data values.
Chapter 4 Solutions
Pkg Acc Infor Systems MS VISIO CD
Ch. 4 - Prob. 1RQCh. 4 - Prob. 2RQCh. 4 - Describe each symbol used in constructing DFDs.Ch. 4 - Prob. 4RQCh. 4 - Prob. 5RQCh. 4 - Prob. 6RQCh. 4 - What is a logical DFD?Ch. 4 - Prob. 8RQCh. 4 - When is a set of DFDs balanced (i.e., leveled)?Ch. 4 - Prob. 10RQ
Ch. 4 - Prob. 11RQCh. 4 - Prob. 12RQCh. 4 - Prob. 13RQCh. 4 - Prob. 14RQCh. 4 - Prob. 15RQCh. 4 - Prob. 16RQCh. 4 - How will systems documentation differ between...Ch. 4 - Prob. 1DQCh. 4 - Prob. 2DQCh. 4 - Describe the who, what, where, and how of the...Ch. 4 - Why are many correct logical DFD solutions...Ch. 4 - Prob. 6DQCh. 4 - Prob. 7DQCh. 4 - Prob. 8DQCh. 4 - Prob. 9DQCh. 4 - Prob. 10DQCh. 4 - Prob. 1SPCh. 4 - Prob. 2SPCh. 4 - Prob. 3SPCh. 4 - Prob. 4SPCh. 4 - Prob. 5SPCh. 4 - Prob. 1PCh. 4 - Prepare a narrative to describe the system...Ch. 4 - Prepare a narrative to describe the system...Ch. 4 - Good Buy, Inc. (good-buy.com) Good Buy, Inc. (a...Ch. 4 - Prob. 5PCh. 4 - Good Buy, Inc. (good-buy.com) Good Buy, Inc. (a...Ch. 4 - Prob. 7P
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- The installation of a database management system is likely to have the least impact ona. data redundancy.b. entity-wide sharing of common data.c. exclusive ownership of data.d. the logic needed to solve a problem in an application program.e. the internal controls over data access.arrow_forwardWhich of the following statements is not correct? a.The database approach uses one common database to promote the concept of single user view. b.Database systems resolve task data dependency. c.The flat-file model encourages data redundancy. d.A primary goal of databasesystems is to minimize data redundancy. e.Database systems provide increased accessibility to data and data integration.arrow_forwardWhich statement best describes the issue of distributed data processing (DDP)?a. The centralized and DDP approaches are mutually exclusive; an organization must choose one approach or the other.b. The philosophy and objective of the organization’s management will determine the extent of DDP in the firm.c. In a minimum DDP arrangement, only data input and output are distributed, leaving the tasks of data control, data conversion, database management, and data processing to be cen- trally managed.d. The greatest disadvantage of a totally distributed environment is that the distributed infor- mation processing unit locations are unable to communicate and coordinate their activities.e. Although hardware (such as computers, database storage, and input/output terminals) can be effectively distributed, the systems development and maintenance tasks must remain centralized for better control and efficiency.arrow_forward
- Discuss the importance of the role of the database administrator. In the flat-file environment, why is such a role not necessary? What tasks does the DBA perform?arrow_forwardData in a data warehouse are in a stable state. Explain how this can hamper data mining analysis. What can an organization do to alleviate this problem?arrow_forwardWhich of the following is NOT part of the systems implementation process? a. converting databases b. documentation c. systems design d. testing and correctionarrow_forward
- Discuss why control procedures over access to the data resource become more crucial under the database approach than in the flat-file environment. What role does the DBMS play in helping to control the database environment?arrow_forwardWhich statement about flowcharts is correct? a. They list internal control activities that are present or missing and are easy to understand and use for identifying control weaknesses in the typical processes. b. They visually represent the activities in a business process and are used to easily understand the process using standard notations. c. They show many details of a process in a single diagram that can be used to capture controls via decision points and the manual and automated processes. d. They are simple diagrams showing the sources of data, processes, and data storage that can be used to focus on the data separate from the who processes data.arrow_forwardDiscuss the characteristics of a computerized information system that make it different from the manual system.arrow_forward
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