Essays on Data Warehouse
Data management is an essential component for efficient functioning of any organization. Data management helps in the preparations of plans that can be used by a company. Managing data helps one to access it easily and data planning checklist will comprise of the target data user, duration of time that it will be retained, size […]
1. The independent data marts have inconsistent data definitions and different dimensions and measures, 2. Which of the following is not a major activity of OLAP? Analytics 3. Which of the following are reports that are similar to routine reports,Ad-hoc reports 4. Clustering techniques involves optimization this is because we want to create group that […]
Executive Summary Port Aventura was launched in 1995 and since that time has transformed from a theme park to an all-encompassing resort. Due to this change, management now requires the ability to identify and target individual customers, as opposed to statistical averages of broad groups. One-to-one communication will allow for customized marketing packages and the […]
This case illustrates how database technologies can support an organization’s business strategy. The large investment made by Caesars Entertainment Corporation, formerly Harrah’s, in its information technology strategy has been tremendously successful. The results of Caesars investment at the time include: 10 percent annual increase in customer visits. 33 percent increase in gross market revenue. Yearly […]
DATA WAREHOUSE According to William Inmon, data warehouse is a “subject-oriented, integrated, time-variant, and non-volatile collection of data in support of the management’s decision-making process” (Inmon, 1999). Data warehouse is a database containing data that usually represents the business history of an organization. This historical data is used for analysis that supports business decisions at […]
Data Warehouse A data warehouse is a database that stores current and historical data of potential interest to decision makers throughout the company. In the Terrorist Watch List Database case, the information about suspected terrorists are consolidated and standardized from multiple government agencies so that the information can be centralized into a single list, from […]
This column-oriented DB’S has advantages for data warehouses, customer relationship management (CRM) systems, and library card catalogs, and other ad hoc inquiry systems where aggregates are computed over large numbers of similar data items. It is possible to achieve some of the benefits of column-oriented and row-oriented organization with any Dobbs. By netting one as […]
Over the years, a number of web servers have been written. Apache Is one of the oldest, most widely used web servers In use today . Let was Implemented with a scaling mechanism that works, but Is relatively Inefficient In some ways. Since that time some newer web servers have come out that attempt to […]
What was the impact of data quality problems on the companies described in this case study? What management, organization, and technology factors caused these problems? BT Group had data quality issues within the product inventory and customer billing databases, resulting in poor efficiency of the system. The case doesn’t really give the reason that these […]
Objectives At the end of this chapter you should be able to: Distinguish a data warehouse from an operational database system, and appreciate the need for developing a data warehouse for large corporations. Describe the problems and processes involved in the development of a data warehouse. Explain the process of data mining and its importance. […]
Describe “active” data warehousing as it is applied at Continental Airlines. Does Continental apply active or real-time warehousing differently than this concept is Normally described? Explain your answer.Answer: as shown in the case Continental senior management decided to invest in enterprise data warehouse that all employees could use for quick access to key information about […]
Patterns of Data Mart Development In the beginning, there were only the islands of information: the operational data stores and legacy systems that needed enterprise-wide integration; and the data warehouse: the solution to the problem of integration of diverse and often redundant corporate information assets. Data marts were not a part of the vision. Soon […]
A. For each of the following meetings explain which phase in CRISP-DM process is represented: a. Managers want to know by next week whether deployment will take place. Therefore analysts meet to discuss how useful and accurate their model is. This is the Evaluation phase in the CRISP-DM process. In the evaluation phase the data […]
