Restriction (See Asset Constraint).

From OWL Web Ontology Language Guide ( 2004-02-10) informal term for discussing the effect of a restriction

A logical formula or informal text stating something that must be true and written inside curly braces | one of a small number of words indicating a logical constraint - for example "complete" or frozen. [ uml.gen.gif ] [ uml.dynamic.gif

a restriction imposed by a design or by a client which a designer must take account of

In requirements engineering, a constraint refers to some limitation in the conditions under which the system should operate, and/or on the way in which the system is to be developed or on the systems engineering process.

A limit to the design process caused by such things as appearance, funding, space, materials, and human capabilities.

A limitation of any kind to be considered in planning, programming, scheduling, implementing, or evaluating programs.

A limit to what a system can accomplish.

There is INTEGRITY CONSTRAINTS on database.Types of integrity constraints are: (1) Non-null (2) Key (3) Referential integrity (4) Attribute-based (5) Tuple-based (6) General assertions Example schema: Student(ID, name, address, GPA, SAT) Campus(location, enrollment, rank) Apply(ID, location, date, major, decision) Example constraints:- A student with GPA 3.0 can only apply to campuses with rank 4.- All applications with date 1/1/01 have non-NULL decision.- Apply.ID and Apply.location appear in Student.ID and Campus.location, respectively.- Campus.rank 10.

Constraints are rules applied to a theme. The Scenario evaluates the features ofthe theme based on the rule and informs the user when a feature or features breaksit. A typical Constraint would be that buildings can only be constructed on slopesless than a certain value. If, in the course of laying out a new subdivision, theuser places a building on a steep slope, then Scenario Constructor will display awarning. The user can heed the warning and change the position of the building orleave it where it is. Constraints do not have to be followed.

A rule applied to a table or column that restricts the data allowed in any row in the table.

a condition which must be satisfied relative to the rows of a table com

A relationship between a set of objects, where making a change to one object affects another object in the set.

a functional relationship between objects, classes, attributes, links, and associations; a statement about some condition or relationship that must be maintained as true

a condition that determines what values an attribute or relationship can or must have

a declaration of a relationship that is to hold between two or more values -- in this case the values that control the size and position of interactor objects

a legal subset of the cross-product of the domains of a certain number of variables

a logical relation among several unknowns (or variable), each taking a value in a given domain

a mathematical representation in a mathematical programming problem of some situational factors that must be taken into consideration when an attempt is made to optimize a value function with respect to its key variables

a relation among program variables that is maintained throughout execution

a condition that every implementation of the design must satisfy

a condition that must be satisfied in order for the design to be feasible

a declarations on data that the data of the Actor and Target of an Operator have to satisfy

a labeling expression and a selection condition

a Boolean expression describing some property of a field

a Boolean expression over one or several elements which must always be true

an expression that must always evaluate to true

A condition or proposition that must be maintained as true. Constraints are typically applied to the permissible states or operations of an object.

The act of constraining, or the state of being constrained; that which compels to, or restrains from, action; compulsion; restraint; necessity.

the state of being physically constrained; "dogs should be kept under restraint"

a device that retards something's motion; "the car did not have proper restraints fitted"

Any external, management, or other factor that may confine an organization from meeting its goals or objectives.

Any element or factor that prevents a system from achieving a higher level of performance relative to its goal. Constraints can be physical/logistical, managerial/procedural or behavioral/psychological.

Any element or factor that prevents a person from reaching a higher lever of performance with respect to her goal.

The actual cause of the bottleneck. Usually a necessary skill or piece of equipment

a bottleneck, delay or a barrier to our full potential

See  bottleneck.