I agree with Tuck. I can take another example from NPL. We use LabView a lot since it provides 90% of the application as COTS in effect by providing device drivers and use interface code for control of instruments. I would not dream of attempting to convert them to Ada *unless* the volume of code to be written by them was much larger than is typically the case. We must not over-sell Ada. Brian. ------------------------------------------------------------- Brian Wichmann Tele: +44 181 943 6976 (direct) National Physical Laboratory FAX: +44 181 977 7091 Teddington Middlesex e-mail: [log in to unmask] TW11 0LW UK WWW: http://www.npl.co.uk/npl/cise/welcome.html -------------------------------------------------------------