105 4 0 it services comprises three sub sectors professional product and outsourcing includes consulting development integration education training support maintenance the market covers businesses involved in both software hardware installation process management 106 key statistics 2001 global revenue us 537 billion australian a 10 6 or 1 of expected growth rate to 2005 13 cagr weighted by sector structure varied share top 3 firms each ranges from 37 multinationals mncs all vendors present ibm gsa edsa csc hold 32 50 listed non companies approximately 18 9 107 consists null exhibit 8