CONCLUSION
A total of 9 static and 4 dynamic software schemes have been
surveyed.
A set of 10 classification criteria is used.
Each criterion results in two or more classes.
Existing CC software solutions are viewed in the space of 10D
criteria.
Each scheme (which is essentially different from other existing
schemes) corresponds to a unique point in the 10D space.
The "empty" points in the criterion space can serve as guides towards
new solutions.