Complex sentence: Citect for Windows was written as a direct response to a request by Argyle Diamonds, to this day the "ArgDig" alarm database (ie Argyle Digital) is still part of Citect.
Split into simpler sentences: Citect for Windows was written as a direct response to a request by Argyle Diamonds. To this day the "ArgDig" alarm database (ie Argyle Digital) is still part of Citect.