Each of the above systems has related technology, and similar needs for distribution, display, coordination, information sharing, locking, hypermedia, etc. We will extract useful technology and re-engineer it into bus-compatible components, to produce a common distributed, object-oriented hypertext platform. We also contemplate including ACE widgets and extension technology into a UIMS component for the environment. We will then reconstruct and extend several of these applications, and test our ideas on extensiblity and application compatibility by implementing additional components. We will complete the replatforming of Kiosk and Matisse on Bart. We are repackaging our software components for a set of useful components in the software construction/engineering domain. We will also work with pilot(s) to investigate applicability to other domains.