<s>
The	O
STEP	O
ISO	B-Algorithm
10303	I-Algorithm
Application	I-Algorithm
modules	I-Algorithm
define	O
common	O
building	O
blocks	O
to	O
create	O
modular	O
Application	B-Application
Protocols	I-Application
(	O
AP	O
)	O
within	O
ISO	O
10303	O
.	O
</s>
