How do the net present value and the internal rate of return methods differ in their approach

Question:

How do the and the methods differ in their approach to evaluating investment alternatives?

Net Present Value
What is NPV? The net present value is an important tool for capital budgeting decision to assess that an investment in a project is worthwhile or not? The net present value of a project is calculated before taking up the investment decision at... Internal Rate of Return
Internal Rate of Return of IRR is a capital budgeting tool that is used to assess the viability of an investment opportunity. IRR is the true rate of return that a project is capable of generating. It is a metric that tells you about the investment...