الاوتوكاد برنامج عملي جدا للرسم التنائي، و لجميع المجالات الهندسية، أما الثاني فهو متخصص للرسم الثلاثي الأبعاد، و بخاصة للتصميم الميكانيكي مثل قطع الغيار للمكائن و أجزائها.
Solidworks is largely a software program used for Mechanical design work such as manufactured parts and assemblies. It's a great 3D design tool.
AutoCAD is a great 2D design tool and is used in a great number of industries.
Solidworks: Great 3D design tool. Weakness: Likely not a great choice if you do work in Civil Design or Architecture.
AutoCAD: The king of 2D drawing. Weakness: Average at 3D work, at least compared to a program like Solidworks