1.6. Intangible Assets Research and development Expenditure on research activities is recognised as an expense in the year in which it is incurred.Development activities involve a plan or design for the production of new or substantially improved products and processes. Development expenditure is capitalised where the costs can be measured reliably, the product or process is technically and commercially feasible, future economic benefits are probable, and the Group intends to and has sufficient resources to complete the project and to use or sell the development asset. Expenditure capitalised includes the cost of materials, direct labour, and overhead costs that are directly attributable to preparing the asset for its intended use. Capitalised development expenditure is measured at cost less accumulated amortisation and impairment charges. Development expenditure, which does not meet the criteria for recognition as an intangible asset, is recognised in the Income Statement as incurred.Computer software Acquired computer software licences are capitalised on the basis of the costs incurred to acquire and bring into use the specific software. Costs associated with maintaining computer software programs are recognised as an expense as incurred.Land use rights Licences for the long-term use of land are capitalised on the basis of the costs incurred to acquire.