Fundamentals of Information Systems
9th Edition
ISBN: 9781337097536
Author: Ralph Stair, George Reynolds
Publisher: Cengage Learning
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Chapter 6, Problem 5DQ
Program Plan Intro
State the difference between OLAP and drill-down analysis. Give an example of each of the analysis technique.
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Chapter 6 Solutions
Fundamentals of Information Systems
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- Explain the concept of drill-through and drill-down in OLAP analysis. Provide examples of when each is used in data exploration.arrow_forwardJustify the need of using JAD as a requirement elicitation technique for the depth of data selection strategy.arrow_forwardThere are three points in CRISP-DM that have arrows that return to a prior step. Identify an organizational issue that might cause a data analyst to need to follow one of these arrows. Discuss the cause of returning to a prior step and what will be done to resume forward progress. Discuss the contributions of others in the class with questions and suggestions for improved use of CRISP-DM in the context of their examples.arrow_forward
- Performance analysis a) What is the confusion matrix? b) Why accuracy is not enough to evaluate the performance of an Al model tested on imbalanced dataset and what are the alternative metrics we need to use to study the real performance of the model?arrow_forwardIn contrast to conventional approaches to data gathering, what is your assessment of the efficacy of JAD and RAD? What are the primary benefits associated with utilising a group-based methodology?arrow_forwardWhat are data mining technique that are used when the data in the study have a target variable, elaborate how the analyst is able to identify the most suitable model.arrow_forward
- In what scenarios would denormalization be recommended, and what are its trade-offs?arrow_forwardWhat stage of the SDLC is the most important, and can you support your claim with at least two instances or examples?arrow_forwardexplain the prottotyping and the incremental delivery ? Mention which SDLC both deliveries can be used . Elaborate with examples to support your answer ?arrow_forward
- Compile a report summarising JAD and RAD. Give a scenario in which their application stands out from other data collection strategies. Please explain the benefits of using a team approach.arrow_forwardWhat are the principles of both DDA (data depended acquisitions) and DIA (data indepdenent acquisitions) and the main limitations of each technique?arrow_forwardfrom the concept presented in this lesson, create five simple basic procedures in planning the data analysis. what to do beforehand (pre-process) is already given as your guide.arrow_forward
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