Development of computer platforms; providing online non-downloadable computer software platforms for application development; platform as a Service (PaaS) featuring computer software platforms for trading of commodities and goods; platform as a Service (PaaS) featuring computer software platforms for interface permitting trading and bartering; providing on-line non-downloadable software using artificial intelligence (AI) for search and recommendations, automated customer support via chatbots, and virtual assistants; providing access to Internet platforms for online contents in the nature of providing information in the field of software development via the Internet