Computer software design and development; software engineering, namely, computer software design; Platform as a service (PAAS) services featuring computer software platforms for use in the creation, development and operation of software applications; Platform as a service (PAAS) services featuring software development tools for the creation of applications for mobile devices; Platform as a service (PAAS) services featuring computer software platforms for building user interfaces; software as a service (SAAS) services featuring software development tools for use in the creation, development and operation of software applications; software as a service (SAAS) services featuring software development tools for the creation of applications for mobile devices; software as a service (SAAS) services featuring software development tools for building user interfaces; providing temporary use of online non-downloadable software for use in the creation, development and operation of software applications; providing temporary use of online non-downloadable software for the creation of applications for mobile devices; providing temporary use of online non-downloadable software for building user interfaces; application service provider (asp) featuring software to enable or facilitate user interface building software for use in the creation, development and operation of software applications; application service provider (asp) featuring software to enable or facilitate user interface building software for the creation of applications for mobile devices; application service provider (asp) featuring software to enable or facilitate user interface building software for building user interfaces