British-owned, Houston, Texas headquartered Welcom Software Technology International Ltd, has released version 3.3 of its project management software, Open Plan. It now available for AT&T Unix, Data General’s DG/UX, IBM’s AIX in the US – in the UK shortly – as well as on the Apple Macintosh, DEC VAX and personal computers, and supports most local area networks. The Unix versions are built upon Recital Corp’s database technology – the others on dBASE and FoxBASE – X Window and Motif editions are planned. Open Plan 3.3 incorporates multi-project scheduling, enhanced output graphics and network diagrams. Welcom claims 7,000 Open Plan users worldwide – 4,000 of them in the US, mainly in the defence and aerospace industries. Unix, Macintosh and personal computer versions start at UKP3,250, a local net copy is UKP7,500, the VAX edition UKP9,250.