Illinois Tool Works Inc. has acquired Texas-based software provider Ameri-CAD Inc. The acquisition includes Ameri-CAD's architectural services division as well as software solutions VisionREZ & VUDOX.   ; Ameri-CAD will function as a separate business unit in the ITW Building Components Group.   ; Illinois Tool Works acquisition of Ameri-CAD enables us to more quickly and effectively deliver on the promise of technology to a fragmented housing industry. Ameri-CAD's intelligent model-based CAD software integrates and consolidates architectural, engineering and manufacturing data resulting in improved communication, and enhanced ROI," said Jimmy Moore, Ameri-CAD, Inc. CEO.   ; Illinois Tool Works Inc. is a diversified manufacturer of fasteners and components, equipment and consumable systems and a variety of specialty products and equipment.   ; ITW is in 49 countries.