Info Management Reviewer

is a subset of a database stored at a given location

it is an integrity control that enforces database conditions

Transitive dependency exists when there is a functional dependence in which the determinant is only part of primary key.

it is known as the same data that is stored or recorded unnecessarily in different places.

develops databases for decision support reporting and specializes in sql, query optimization and data warehouse.

computer-aided systems execution produces better systems within a reasonable amount of time and at a reasonable cost.

it is a data model basic building block that describes an association among entities.

means the coding or scrambling of data so that humans cannot read them.

in a database, it is okay to delete a record that can cause other data to be lost.

multivalued attributes are removed during this normalization form.

are the foundation of information of information, which is the bedrock of knowledge.

in this normal form, the table groupings are eliminated, primary keys and functional dependencies are identified.

focuses on design of database structure used for end-user data.

it is a recovery facilities type where the DBMS copy utility produces a standby copy of the entire database or subset.

Introduced by Chen in 1976, and is a graphical representation of entries and their relationships in a database structure

is data about data

it is a data model basic building block that refers to a restriction placed on the data.

already in use affects selection of a database system.

data model that represent complex data relationships more effectively, improve database performance, database standard.

Attribute b is not functionally dependent on the attribute A if each value of A determines one and only one value of B.

a type of data model that is widely accepted as a standard for data modelling.

it is an integeity control that sets allowable values.

consists of logically related data stored in a single logical data repository.

isolated is where database changes are not revealed to users until after the transaction has been completed.

refers to data that is located at a single site.

an abstraction of a real-world object or event useful in understanding the complexities of the real-world environment.

method for organizing data elements in a database into tables by dividing larger tables into smaller ones and link them.

consistent refers to constraints that do not change before or after the transaction.

this diagram uses graphic representations to model database components.

it is a data model basic building block that is referred to as a characteristic of an entity.

system development is the process of creating an information system.

it is also known as corrective maintenance.

in this normal form, partial dependencies are eliminated.

is where DBMS stores the values of data elements and relationships and records automatically.

attribute B is fully functionally dependent on the attribute A if each value of A determines one and only one value of B

must be cost-effective as well as tactically and strategically effective.

are instructions and rules that govern the design and userld of the database system.

this refers to a subnet of the database that is presented to one or more users.

system analysis is a process that establishes the need for and extent of information systems.

is a logically connected set of one or more field that describes a person, place, or thing.

this refers to data protection from unauthorized use.

a database life cycle phase is where it analyzes the company situation, defines problems and constraints.

known as the ubiquitous use of personal productivity tools that can introduce the same problems as the old file systems.

it is a data model with a basic logical structure and is represented by an upside-down "tree" structure.

structure makes it difficult to combine data from multiple sources.

helps companies or organizations leverage database technologies to improve business processes and achieve

it is known as different and conflicting versions of the same data that occur at various places.

is a collection of programs that manages structure and controls access data.

focuses on proper generation, storage, and retrieval of data.

data dependence is where data storage characteristics do not affect data access.

it is a relatively simple representation of complex real-world data structures, often in the form of a graphical.

data processing specialist converted file structures from a manual system where they wrote software that managed data.

in this database life cycle phase, it installs the DBMS for virtualization that creates logical representations.

must be incorporated into the conceptual model.

supports a company's or organization's day-to-day operations, such as transactional or production database

data dependence changes file structure without affecting the data access.

is referred to as a character or group of characters that has a specific meaning and is used to define and store data.

transitive dependency exists when there are functional dependencies such that X->Y, Y->Z, and X is not the primary key.

these are activities that make the database execute more efficiently.

data independence is where data access changes when data storage characteristics change.

in this normal form, transitive dependencies are eliminated.

a situation where difficulties or inconsistencies arise when attempting to add new data or records into a database.

designs and implements database environments such as conceptual, logical, and physical database views.

it protects the data against accidental or intentional loss, destruction, or misuse.

is the result of processing raw data and requires context to reveal meaning.

stores data that is used for tactical or strategic decisions.

a situation where difficulties or inconsistencies occur when attempting to remove data or records from a database.

it is also known as the preventive maintenance

a process for evaluating and correcting table structures to minimize redundancies, and reduce data anomalies.

the normalization process might yield additional entities and attributes to be incorporated into the ERD.

promotes storage of the same data in different locations.

type of data model requires periodic maintenance embodies a clear understanding of business and its functional areas

refers to dara that is disseminated across several different sites.

a data model developed by E.F. Codd of IBM in 1970 that was conceptually simple at the expense of computer overhead.

policies, procedures, or principles within a specific organization that stores and uses data to generate information.

is a collection of related records.

identical data is recorded in several rows within the database.

The database life cycle model phase requires periodic upholding and protection, such as backup and recovery.

refers to situations where difficulties or inconsistencies arise when attempting to nodify data in a database.

where once the database has passed the evaluation stage, it is considered functioning.

it is a recovery facilities type where the audit train of transactions and database updates are considered.

physical independence refers to changes in the physical model that do not affect the internal model.

data refinement is the stage where we gather and list all necessary fields for our database.

a database life cycle phase is necessary to concentrate on data characteristics required to build a database model.

it is a data model basic building block that refers to anything about which data are to be collected and stored.

it enables you to identify the existence of potential problems like data management anomalies, and data redundancy.

it is referred to as the abnormalities when all changes in duplicated data are not made correctly.

occurs in parallel with applications programming and database tools used to prototype applications.

an integrity control that prevents inappropriate actions, invokes special handling procedures, and writes to log files.