Turnover is measured at the fair value of the consideration received or receivable, net of discounts and value added taxes. Turnover includes revenue earned from the licensing of products and from the rendering of services. Turnover is reduced for estimated customer returns, rebates and other similar allowances.
Licensing of products
Turnover from the licensing of products is recognised in the periods covered by the licences. Licences covering periods beyond the current year are apportioned across the applicable accounting years and future periods are held in the balance sheet as deferred income, to be released to profit and loss when the future periods complete.
Rendering of services
Turnover from the rendering of services is recognised by reference to the stage of completion of the contract. The stage of completion of a contract is measured by comparing the costs incurred for work performed to date to the total estimated contract costs. Turnover is only recognised to the extent of recoverable expenses when the outcome of a contract cannot be estimated reliably.