Now pursuing a wider marketing brief to replenish its coffers, the Open Software Foundation has opened up laboratories at its Cambridge, Massachusetts-based headquarters to provide an interoperability testing site. Initially focused on Distributed Computing Environment interoperability testing – something that is apparently much needed – the Foundation says the Interoperability Lab replicates end-user environments and provides for real-world testing and verification. The Lab has 11 machines from six vendors available for use, including HP-UX on Precision Architecture RISC, Digital Equipment Corp OSF/1 on Alpha AXP, Sinix and Unix System V.4 on Siemens Nixdorf Informationssysteme AG iAPX-86 boxes, Solaris and SunOS on Sun Microsystems Inc Sparcsystems, IBM Corp RS/6000s running AIX 3.2 and MIPS Technologies Inc R-Series-based DECstations with OSF/1 plus Transarc Corp transaction processing and Gradient Technologies Inc network licensing software.