This text may be used in a required or elective quantitative analysis course at the Junior level or first year MBA. It also may be used for an elective course in Modeling and Analysis, Decision Sciences or Management Science. A major new feature of the book is the use of the Excel speadsheet throughout. It is a very spreadsheet friendly text. Model building, Mathematical Programming (using Excel Solver), Simulation, and other spreadsheet applications are included. As indicated, the book was revised in a modular format for custom publishing options. Chapters are self contained. Sections of the book, or individual chapters from other books using Irwin/McGraw Hill custom publishing options.