SYSTEMS DEVELOPMENT ANALYSIS
SYSTEMS DEVELOPMENT METHODS AND TOOLS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Data Management
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Data Mining
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Data Warehouse
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Both B and C
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Detailed explanation-1: -A Data warehouse, also known as an enterprise data warehouse is the electronic storage of a large amount of information by a business. It is a process of collecting and managing data from various internal and external sources compiled by the firm to provide meaningful insights.
Detailed explanation-2: -Explanation: A huge collection of different types of data/information which collected from many different sources stored in one place is called a data warehouse.
Detailed explanation-3: -Metadata means “data about data". Metadata is defined as the data providing information about one or more aspects of the data; it is used to summarize basic information about data that can make tracking and working with specific data easier. Some examples include: Means of creation of the data.
Detailed explanation-4: -Schemas. A schema is an overall description of a database, and it is usually represented by the entity relationship diagram (ERD).
Detailed explanation-5: -However, the data abstraction level that describes how the data was actually stored in the user’s machine (or system) is known as the Physical level.