Capital investment and project evaluation are crucial components of strategic cost management. These processes involve allocating resources to long-term projects, assessing their financial viability, and considering non-financial factors. Key techniques include Net Present Value, Internal Rate of Return, and Payback Period. Risk assessment, real-world applications, and common pitfalls are essential aspects of capital investment decision-making. Advanced topics like real options analysis, portfolio optimization, and sustainability metrics are shaping the future of this field. Understanding these concepts is vital for making informed investment choices.