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Content negotiated by Eira is divided into three categories: Eira Core, Eira Plus and Eira Add-on. Eira Core is the common, high quality knowledge base available in all regions. An Eira Core agreement means all 21 regions subscribe. Eira Plus are optional, additional agreements, subscribed to by interested regions. For both Eira Core and Eira Plus, ordering, licensing and invoicing is administered through Eira office, Inera. Eira Add-ons are additional offers negotiated by Eira. For Eira Add-on offers ordering, licensing and invoicing is handled by vendor and each interested region directly.
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