Based on the reality that today's engineers need a broad range of decision-making skills, this unique text draws together—into a single comprehensive volume—all the fundamental principles of systems analysis (both hard and soft systems), economics (particularly microeconomics), probability, and statistics that engineering students need to develop a rich, multifaceted perspective from which to tackle—and solve—complex engineering problems. The emphasis throughout is on presenting the fundamental concepts and their practical engineering applications, unobscured by complicated mathematics. Coverage is broad-based and applicable for students in practically all branches of engineering, not just civil engineering.