Software Testing Glossary ◾ 191
to prevent a task from starting which would entail more (wasted) effort compared
to the effort needed to remove the failed entry criteria.
Entry point: e first executable statement within a component.
Equivalence class: See equivalence partition.
Equivalence partition: A portion of an input or output domain for which the
behavior of a component or system is assumed to be the same, based on the
specification.
Equivalence partition coverage: e percentage of equivalence partitions that
have been exercised by a test suite.
Equivalence partitioning: A black box test design technique in which test cases
are designed to execute representatives from equivalence partitions. In principle test
cases are designed ...