Integrating Agnos - or Developing a payment application (L3) relies on:
A previous successful platform integration (DEVICE realization)
A first L2 qualification demonstrating that the system is mature enough to start L3 development (i.e. a full L2 TA is not required to start)
Agnos programmation paridigm is systematic:
Set pre-conditions
Trigger a transaction
Get post--conditions