The software is a big help to engineer the process, but too much dependence on such tools can often lead to inappropriate design and optimal. Reliance on software is also a hindrance without a firm understanding of the principles underlying the operation, since users are still responsible for preparing the design. In Process Engineering and Design Using Visual Basic, Arun K. Each chapter details the theory and techniques that provide the basis for display design and engineering software and then the development and utility programs are developed by using the materials described in this chapter.