The fourth step to measure your BI effectiveness is to estimate the business value and impact of your BI tools and solutions. Business value refers to the tangible or intangible benefits that your BI tools and solutions provide to your business, such as increased revenue, reduced costs, improved efficiency, or enhanced reputation. Business impact refers to the measurable or observable changes that your BI tools and solutions cause in your business processes, performance, or outcomes, such as increased sales, reduced errors, improved productivity, or enhanced customer loyalty. Low business value and impact can suggest that your BI tools and solutions are not delivering the desired results or solving the relevant problems. You can use metrics like ROI (Return on Investment), TCO (Total Cost of Ownership), NPS (Net Promoter Score), or CSAT (Customer Satisfaction Score) to measure and demonstrate your business value and impact.