Users specified constraints for timing and area, and provided a clock period and destination technology.

There are also domain-specific languages with focus on specifying and checking architectural constraints, including .

Attempts to specify constraints on the application of the rule by appealing to the intuitions of the native speaker simply raise a fresh set of problems (see 7.3.2).

Analyses such as the Montreal que study which concentrates on specifying syntactic constraints on variation (cf. 7.4.2) will benefit greatly both from a parser and a concordance program - and in fact such a program was used to analyse the Montreal corpus.

The mechanisms available for restricting data types include the ability to specify minimum and maximum values, regular expressions, constraints on the length of strings, and constraints on the number of digits in decimal values.

A guard is not quite the same thing as a type declaration; guards are optional and can specify constraints.

On the productivity side, it can also refer to the positive ideas of focus and optimizing goals by specifying relevant constraints and finding "corner solutions" via linear inequality constraints, as in Linear programming or Constraint optimization.

For instance, process requirements could specify the methodologies that must be followed, and constraints that the organization must obey.

Search by matching 3D conformation of molecules or by specifying spatial constraints is another feature that is particularly of use in drug design.

This allows Schematron rules to specify additional constraints to the structure defined by W3C XML Schema or RELAX NG.