Platform as a service (PAAS) services featuring computer application software for developing and hosting applications; platform as a service (PAAS) services featuring mobile application software for developing and hosting applications; platform as a service services (PAAS) featuring computer and mobile application software for testing, diagnosing, debugging, and monitoring applications; platform as a service (PAAS) services featuring computer and mobile software for simulation of high-performance computing environments; providing non-downloadable computer and mobile software for integration of computer systems, applications, data and databases; providing online, non-downloadable computer and mobile software for enabling integration between different applications, namely, computer and mobile applications, and cloud applications; computer and mobile services, namely, hosting software applications of others; platform as a service (PAAS) services featuring computer and mobile software platforms for accessing and integrating data and data work flows, creating multi-step data workflows among applications, providing for data security, and for handling data sharing across multiple applications and databases.