42 Testing the functionality of apparatus and instruments in the nature of {oil and gas equipment}; Computer software design and development; Computer hardware development; Installation of computer software; Updating of computer software; Maintenance of computer software; Artificial intelligence as a service (AIAAS) services featuring software using artificial intelligence (AI) for {database management, file transmission}; Software as a service (SAAS) services featuring software for {database management, file transmission}; Platform as a service (PAAS) featuring computer software platforms for {database management, file transmission}