Borland International Inc has signed with Contexture Systems Inc of Boston, Massachusetts to market its Contessa Unix-based application development tool set on undisclosed terms. Contessa provides a Motif graphical front end to Borland’s InterBase relational database management system on Hewlett-Packard Co HP 9000s, IBM Corp RS/6000s, Sun Microsystems Inc Sparcstations and Digital Equipment Corp DECstations. Development licences are $5,000 per developer, run-time licences $500.