We present an algorithm that automates the process of 
identifying implementation-based testing techniques that 
are suitable for testing a given class.  The algorithm
accepts a summary of the class under test and a set 
representing testing techniques available to the developer 
engaged in performing the test.  The summary of the class 
is based on our taxonomy that maps the characteristics of 
a class in an object-oriented system into our taxonomy,
each entry consisting of a nomenclature and feature properties.
Each element in the set of testing techniques supplied to the 
algorithm uses our taxonomy to summarize the class characteristics 
favored by that technique.  Using the nomenclature and feature 
properties of the class under test, together with a set of 
available testing techniques, the algorithm identifies a 
subset of techniques that are appropriate for the class 
under test.