Design and development of computer software and computer platforms; platform as a Service (PaaS); online provision of web-based applications (non-downloadable); online provision of web-based software (non-downloadable); software as a service; software as a service featuring a software platform that assists users with the drafting and management of construction contracts; software as a service featuring software that provides insights from data derived from the use of software; software as a service for use in the field of construction; software as a service for construction project management; software as a service for contract management, including in the construction industry; software as a service for managing the tender process, including in the construction industry; software as a service that connects builders, subcontractors and suppliers in the construction industry; software as a service for tendering projects, tendering workflow, delivering tender documents; software as a service for making electronic payments; software as a services for the digital execution of contracts and/or other documents; software as a service for authenticating digital signatures; software as a service for authenticating user identity; authentication services for electronic documents and e-mail; computer security services in the nature of providing authentication, issuance, validation and revocation of digital certificates; cloud computing; computer software development; computer software engineering; computer software programming services; design and development of computer software; diagnosis of faults in computer software; provision of online non downloadable software; updating of computer software; upgrading of computer software; information and advisory services relating to the foregoing; all of the foregoing for use in the field of construction