Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
94 Cards in this Set
- Front
- Back
Ad Hoc querying
|
direct retrieval of information by end-users from a database whereby the retrieval was not planned (i.e. no pre-formulated queries or interfaces were developed in anticipation of needing the information)
|
|
Aggregation function
|
a mathematical operation used in querying to summarize information within a single column; also called a vertical calculations
|
|
Comparison operator
|
in querying, operators used to compare a variable to a value; common comparison are less than, equal to, greater than or equal to and less than or equal to
|
|
Data manipulation
|
the specification of operations to be preformed on one or more data fields to obtain additional information; may create aggregations, horizontal calculations, subset selections, etc.
|
|
Data type (field property)
|
specification as to what kind of data values may be entered into a database table's column
|
|
Database window
|
a screen that depicts the components of the selected database.
|
|
datasheet view
|
a mode that presents a relational table or a query result in row/column format
|
|
design view
|
for relational tables, a mode that displays details about the fields of a table and allows the user to specify various design parameters such as which fields comprise the primary key, whether a field is set to required to data entry, and the data type for a field; for queries, a mode the depicts the logic of a query in QBE format
|
|
dynaset
|
a query's result; looks and behaves like a table but is not actually stored as a table, it is generated as a view each time the query is run
|
|
enforce referential integrity
|
a choice is selected in the relationship layout to determine whether the referential integrity principle will be forced in a relationship between two tables as the users enter data into the database
|
|
equi-join
|
a join that combines the tables together based on a common attribute, keeping only those rows for which data values of the common attribute match exactly; also called an inner join
|
|
expression builder
|
an application within Microsoft access that assists the user in creating horizontal calculations within queries.
|
|
field property
|
defines the type of data allowed to be entered into a column of a database table
|
|
group by
|
a querying function used to create subgroups to which aggregations may be applied; a means for creating subtotals.
|
|
horizontal calculation
|
a row computation in a query that combines data from two or more separate columns of one or more tables
|
|
horizontal subset of a table
|
a part of a table that includes only some of the tables rows, but includes all the columns
|
|
information retrieval
|
repossession or capture of data that was previously entered into a database or other data storage structure
|
|
inner join
|
a join that combines the tables together based on a common attribute, keeping only those rows for which the data values of common attribute match exactly; also called an equi-join
|
|
join
|
to combine separate but related tables by linking them on their common attributes; one of the three primary relational algebra operators discussed
|
|
join properties window
|
a screen that appears when a user double clicks on a join line to reveal whether the join is an inner join, a left join, or a right join, a user an change the join type in this window
|
|
left join
|
a combination of tables based on a common attribute that includes unmatched records from the first table in the join and does not include unmatched records from the second table in the join; is a partial outer join
|
|
logical operator
|
Boolean search terms used in queries to define which records are included in the query result; Examples include AND, OR, and NOT
|
|
mathematical operations
|
a calculation that manipulates data values
|
|
outer join
|
a combination of tables based on a common attribute that includes unmatched records from both sides, accomplishes a set union of the tables
|
|
parameter query
|
a query in which variables are used in lieu of data values as a part of the query is run, thereby allowing re-use of the same query many times for different decisions
|
|
physical database implementation
|
a working database system; is dependent on the hardware software, and type of software chosen during the design stages
|
|
posted key
|
an attribute of a database table that is added to another database table to create a link between tables
|
|
project
|
a relational algebra operator that specifies a vertical subset to be included in the query result
|
|
query
|
a request for information submitted to a database engine
|
|
Query by Example
|
a type of query interface intended to be more 'point and click' in nature than is SQL; in this interface the user creates visual example of what tables and fields should be included in a query and specifies any calculations to be included
|
|
query grid
|
the lower half of the QBE view into which fields are dragged and in which aggregations or horizontal calculations may be created to establish the desired logic for query
|
|
query window
|
the screen in which queries are created; users may toggle back and forth between QBE design, SQL design. and datasheet views within the query window
|
|
relational algebra
|
the original data manipulation languauge that was constructed based on set theory and predicate logic as part of the relational database model; primary operators include select, project, and join
|
|
relationship layout
|
a window in which relationships between tables are visually depicted
|
|
required data entry (field property)
|
a choice is specified in table design view; a user will not be allowed to enter a record into a table without including a value for any field for which this property is set to 'yes'; a user may leave any field except the primary key blank for which this property is not set to 'yes'
|
|
right join
|
a combination of tables based on a common attribute that includes unmatched records from the second table in the join and does not include unmatched records from the first table in the join; partial outer join
|
|
select
|
a relational algebra operator that specifies a horizontal subset to be included in the query result
|
|
select-from-where
|
the format of SQL queries; the select clause specifies a vertical subset to be included in the query result; the from clause specifies which table are to be queried and any sub-grouping to be done; the where clause specifies a horizontal subset to be included in the query result
|
|
show table window
|
a screen from which users may choose which table to include in the relationship layout or in a query
|
|
SQL view
|
a mode for viewing the underlying SQL statement for a query; even if a query was created in QBE mode, Microsoft generates a corresponding SQL statement that the user may view to evaluate\ the query's logic
|
|
Structured Query Language (SQL)
|
a query language developed to enable the performance of multiple operations in a single query and to use a standard format for every query statement to simplify the task of query development
|
|
syntax
|
the formatting rules of a query language
|
|
vertical calculation
|
a computation that is summarization of data values within is single column, also called aggregation function.
|
|
vertical subset of table
|
a part of a table that include only some of the tables columns (but not include all the rows)
|
|
agent queries
|
queries that involve single tables containing data that describes internal and external agents; typically such queries are used to list one or more internal and external agents who possess one or more specific characteristics
|
|
data constraint
|
a restriction placed on a date field in a query to limit the query rrsults to include only records for which the data values meet the restriction
|
|
duality association queries
|
queries that involve the tables that comprise a relationship between an economic decrement and an economic increment even such as that between a sale and cash reciept or between cash disbursement and purchase; typically such queries are used to identify incomplete exchanges or to calculate dollar vales of claims of accounts receivable
|
|
event queries
|
queries that involve single tables containing data that describes events; typically such queries are used to list one or more events that meet specific criteria
|
|
fulfillment association queries
|
queries that involve the tables that comprise a relationship either between an instigation event and a commitment event and an economic event; typically such queries are used to identify or to calculate total values of unfulfilled items such as open purchase requisitions, open purchase orders, etc
|
|
null to zero function
|
a Microsoft access procedure used in querying that treats null values as if they are zeros
|
|
outer join
|
a combination of tables based on a common attribute that includes unmatched records from both side; accomplishes a set union of the tables
|
|
parameter query
|
a query in which variables are used in lieu of data values as part of the query's selection criteria; allows the user to specify the data value to be used each time the query is run, thereby allowing re-use of the same query many times for different decisions
|
|
participation association query
|
queries that involve the tables that comprise a relationship between an event and an agent; typically such queries are used to identify information about the agents who participated in an event or to aggregate event data by agent
|
|
proposition association queries
|
queries that involve the tables that comprise a relationship between an instigation event and a resource or resource type; typically such queries are used to list the quantities or dollar values of the items included in the event or aggregate them for a time period
|
|
reservation association queries
|
queries that involve the tables that comprise a relationship between a commitment event and a resource or resource type; typically such queries are used to list the quantities or dollar values of the items included in an event or time period
|
|
resource queries
|
queries that involve single tables containing data that describes resources or resource types; typically such queries are used to identify one or more resources that possess specific characteristics
|
|
reversal association queries
|
queries that involve the tables that comprise a relationship between an economic event and a reversal event that negates part of all of the economic event; typically such queries are used to identify or aggregate the net event activity
|
|
stockflow association queries
|
queries that involve the tables that comprise a relationship between an economic event or a reversal event and a resource or a resource type; typically such queries are used to list the quantities or dollar values of the items included in the event or to aggregate them for a time period
|
|
weighted average unit cost
|
an inventory costing method that divides the total cost of each type of item available for sale by the total quantity available; that unit cost is multiplied by the quantity sold during a time to derive cost of goods sold and that unit cost is multiplied by the quantity on hand to get the cost balance of ending inventory
|
|
abstraction
|
the ignoring or hiding of details to capture some kind of commonality between different instances. Examples in conceptual modeling include generalization and typification
|
|
accountability infrastructure
|
in the REA ontology, the economic and commitment activities that actually have happened
|
|
generalization
|
the abstraction from a class of objects to a super class (less detailed, higher level) via the creation of an "is-a" relationship between the subclass and the superclass.
|
|
policy infrastructure
|
in the REA ontology, the economic and commitment activities that should, could, or must happen in a company. The policy infrastructure reflects the results of planning and control efforts by the enterprise management
|
|
typification
|
representation as a category or type rather than as a individual instance
|
|
bill of materials
|
a document that identifies the types and quantities of raw materials needed to create a finished good item; similar to the ingredient list of a recipe
|
|
consume stockflow association
|
a relationship between a resource and an economic decrement whereby the resource is partially used up by the decrement but still exists when the decrement is complete
|
|
conversion cycle
|
transaction cycle in which materials, labor, machinery, and other resources are transformed into finished goods or services; also called the manufacturing cycle or production cycle
|
|
duality association
|
the casual link between a give event and a take even (economic decrement and an economic increment event)
|
|
economic decrement event
|
an event that decreases one or more resources
|
|
economic increment event
|
an event that increases one or more resources
|
|
equipment
|
a resource that gets partially consumed in machine operations in the conversion cycle
|
|
finished goods
|
the resource produced in a production run event in the conversion cycle; the type of inventory into which raw materials, labor, and equipment are transformed
|
|
fulfillment association
|
relationship between instigation and commitment events whereby the commitment events fulfill the instigation events AND relationship between commitment and economic events whereby the economic events fulfill the commitment events
|
|
job time ticket
|
a document that indicates starting and stopping time and descriptions for labor operations performed on a specific date by a specific employee; the documents number often serves as the identifier of the labor operation event; also called a time track document
|
|
labor operation
|
an economic decrement event that uses up the employee labor resource
|
|
labor type
|
a resource type class that represents a list of kinds of labor activities that can be preformed in labor operations
|
|
linkage association
|
relationship between two resource types to represent the fact that one of the resource types is composed of the other; in the conversion cycle this provides a means for identifying the materials a finished good is composed of, the types of labor that are needed to produce a finished goods, and the types of equipment that are needed to produce a finished good. A bill of materials shows this linkage between materials and finished goods.
|
|
machine operation
|
economic decrement event that partially consumes a machine in the conversion cycle
|
|
move ticket
|
document typically used in the conversion cycle to indicate the actual use of raw materials
|
|
operations list
|
document that identifies the labor types needed to create a finished good; captures the same information as the linkage relationship between labor types and finished goods.
|
|
participation association
|
relationship between an event and an internal and external agent
|
|
production employee
|
internal agent involved in labor operations and production runs in the conversion process; a worker who participates in the manufacture of finished goods.
|
|
production order (document)
|
document that captures information about a production order event and also often is used to record information about the resulting production run
|
|
production order (event)
|
event that represents the enterprises commitment to engage in a future economic increment event (production run) that will increase the finished goods resource
|
|
production run
|
economic increment event that increases the quantity of a finished goods resource/ resource type
|
|
production supervisor
|
internal agent who authorizes events in the conversion cycle
|
|
raw materials issuance
|
econcomic decrement event involving the using up of raw materials in the production process; the raw materials are usually transformed into finished goods and lose their own identity and nature in the process; also called material issuance
|
|
raw material requisition
|
commitment event whereby the inventory clerk or warehouse supervisor commits to the production supervisor to transfer materials from the materials warehouse to the production floor; assumes raw materials are available within the enterprise and reserves them for use.
|
|
raw materials
|
input resource in the conversion process that is completely used up in the transformation to finished goods; also called materials
|
|
reciprocal association
|
relationship between a commitment to an economic increment event and a commitment event to an economic decrement event; the commitment level equivalent of duality in the conversion cycle represents a schedule of what is to be produced and what will need to be used and consumed in the production process
|
|
reservation association
|
relationship between a commitment event and a resource or resource type; often specifies quantity and budget cost or selling price for the resources involved in the agreement
|
|
transfer duality association
|
relationship between economic increment and economic decrement events in which the decremented resources are traded for the incremented resources
|
|
transformation duality association
|
relationship between economic increment and economic decrement event in which the decremented resources are converted into incremented resources
|
|
use stockflow association
|
relationship between a resource and an economic decrement event whereby the resources is completely subsumed by the decrement; i.e. the resource is completely used up
|