[Class : 42] Software Consultancy;Software Development;Software Rental;Software Engineering;Software Design;Software Authoring;Software Research;Customizing Computer Software;Computer Software Repair;Installation Of Software;Maintenance Of Software; Configuration Of Computer Software;Development And Testing Of Software; Troubleshooting Of Computer Software Problems;Computer Hardware And Software Testing Services;Provision Of Computer Programmes On Data Networks;Design And Development Of Computers And Computer Programmes; Installation, Maintenance And Updating Of Software