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29 Cards in this Set
- Front
- Back
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Table |
group of records for the same entity, and each row has a record |
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field |
an attribute of an entity, numeric data and/or tect |
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Data Definition |
specifies the characteristics of a field (i.e. text type, max characters) |
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Record |
a means to represent an entity |
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Batch Processing |
read through of each record by the computer and it takes an action |
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Database |
integrated collection of information that is logically related and stored to minimize duplication and facilitate rapid retrieval |
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Data management software |
ensures security, replication, retrieval, acts as a gateway to the database |
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Relational Database |
model that organizes info into tables of records that are related to one another by linking a field in one table to a field in another |
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Scalability |
a system's ability to handle rapidly increasing demand |
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Referential integrity |
ensuring that every foreign key entry exists as a primary key in its main table |
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Database Schema |
graphic that documents the data model and shows the table |
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data dictionary |
documentation that contains the details of every field in every table |
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shadow system |
quick, separate solution |
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master data management |
uniforming defintitions for entities across all business units |
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data warehouse |
a collection of multiple databases from multiple sources that can be used for analysis, intelligence, and strategic planning |
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data stweard |
a person that ensures that people adhere to the definitions for the master data in their organizational units |
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Structured Information |
reasonably ordered, can be broken down into hierarchies |
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unstructured information |
cannot be easily linked together. No inherent structure |
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semi-structured system |
some structure, like webpages and documents, that bear creation dates, titles, and authors |
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Metadata |
data about data |
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Quality of Information |
accuracy, precision, completeness, consistency, timeliness, bias, duplication |
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primary key |
field that makes the data unique in that table |
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Autonumbering |
assign primary keys incrementally |
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normalization |
minimizing the amount of duplication of information in the table as well as avoids inconsistencies |
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functionally dependent |
only one value for each of the attributes in the table, and the attribute determines that value |
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Foreign keys |
primary keys that appear as an attribute in another table. these can be used to link records |
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Structured query language (SQL) |
manipulate information in relational databases |
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interactive voice response |
access to database by telephone to retrieve info and enter data |
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databases without boundaries |
people outside the enterprise enter and manage most of the records, i.e. craigslist, and can be used in disaster relief |
