What are steps of Taxonomy?

In CPMT 1991 it is given

1. Charactersiation

2. Identification

3.Classfiication

4.Nomeclature

And, the same order is given in NCERT Pg.8 3rd line from top!

 

Now, some book say it as

1.Charaesization
2.Identication

3.Nomeclature

4.Classfication.

 

 

Sir, please tell which one is right?