Platform as a service (PAAS) featuring computer software platforms for use as computer systems development tools for monitoring communications traffic and actively communicating on systems buses and as applications for developers of embedded computer systems; providing temporary use of non-downloadable software development tools for monitoring communications traffic and actively communicating on systems buses; Platform as a service (PAAS) featuring computer software platforms for use as tools for the active communication and passive monitoring of embedded system protocols; providing temporary use of non-downloadable software tools for the active communication and passive monitoring of embedded system protocols; Cloud computing featuring non-downloadable computer software platforms for use as computer systems development tools for monitoring communications traffic and actively communicating on systems buses and as applications for developers of embedded computer systems; cloud computing featuring non-downloadable software tools for the active communication and passive monitoring of embedded system protocols