A colleague of mine had what I think is an excellent idea. Similar to that of Xero, IRIS should have demo companies for all different types of entities which users could access and test out certain postings and disclosures. This would of course involve the use of artificial data.
Following on from that, IRIS should also have a 'learning centre' where users could complete online training courses to achieve certifications in particular areas of IRIS. Such as 'IRIS advisor' certification and have similar ones for all the different modules.