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Questions and Answers
What is the central repository for informational data in the general data warehouse architecture?
What is a key characteristic of data within the data warehouse?
What happens to the source data as it enters the data warehouse?
In the data warehouse architecture, how is operational data and processing related to data warehouse processing?
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What are the key components surrounding the central information repository in the data warehouse architecture designed for?
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True or false: The general data warehouse architecture is not based on a Relational database management system server?
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True or false: In the data warehouse architecture, operational data and processing is not completely separate from data warehouse processing?
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True or false: The source data for the warehouse is only coming from the operational applications, and not from an operational data store (ODS)?
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True or false: The transformation process in the data warehouse may not involve conversion, summarization, filtering, and condensation of data?
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True or false: Data within the data warehouse contains a small historical component, usually less than 5 years?
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Study Notes
Data Warehouse Architecture
- Based on a Relational database management system (RDBMS) server that functions as the central repository for informational data.
Key Components
- Operational data and processing are completely separate from data warehouse processing.
- The central repository is surrounded by components that make the environment functional, manageable, and accessible.
Data Sources
- Source data typically comes from operational applications or an operational data store (ODS).
Data Transformation
- Data is transformed into an integrated structure and format as it enters the data warehouse.
- Transformation process involves:
- Data conversion
- Summarization
- Filtering
- Data condensation
Data Characteristics
- Data within the data warehouse contains a large historical component, often spanning 5 to 10 years.
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Description
Test your knowledge of data warehouse architecture with this quiz. Explore the key components and concepts involved in the organization and management of informational data.
