Table 2.

Number of terms in each development step

Development status	Development step completed	Number of terms
To do	Step 1	119
Already existing in DIDEO	Step 2	9
Definition provided	Step 2	7
Ready for OWL implementation	Step 3	64
In DIDEO	Step 4	112
Imported from other ontologies	Step 4	7
Total terms to develop		318
Redundant terms		26
Total terms provided by domain experts		344

Bold text gives totals