Q. What are used for business analysis and monitoring, and include metrics like sale units, revenue, cost, and profit margin?

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Q. What is the importance of providing drill-down and roll-up facilities in the data model for analysis?

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Q. What is the essential aspect of requirements definition related to the data model?

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Q. What is the primary purpose of data warehouse architecture planning?

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Q. What are the major architectural components of a data warehouse?

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Q. How does planning the overall architecture for a data warehouse involve reviewing the components?

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Q. What is the source of all the information needed to plan the architecture of a data warehouse?

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Q. Why is business requirements information crucial for the architectural plan of a data warehouse?

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Q. What type of information must be included in the requirements definition for the "Data Staging" component of a data warehouse?

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Q. Which component of the data warehouse architecture focuses on the types and number of users, types of queries and reports, and front-end DSS applications?

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Q. What does the "Management and Control" component of the data warehouse architecture involve?

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Q. Why is it important to pay special attention to special considerations in the requirements definition phase?

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Q. Which components should receive special consideration during the requirements definition phase?

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Q. Why do ETL (Data Extraction, Transformation, and Loading) activities require special consideration in data warehousing?

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Q. What special considerations are needed for ETL in the requirements definition for real-time data warehousing?

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Q. What is one of the functions required for data transformation in ETL?

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Q. What types of transformation functions are needed for data in ETL?

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Q. What is the purpose of defining the initial load and update frequency in data loading?

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Q. In the context of data loading, what should be defined in the requirements?

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Q. What is the consequence of bad data quality in a data warehouse?

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