The Takeaway. Customer feedback is gold! Come up with internal processes to track complaints and go about fixing them. Also, do everything in your power to make it really easy for customers to give feedback and tell you about problems they are having.
Computing and logic. 1  Dutch national flag problem, a computer science related programming problem proposed by Edsger Dijkstra. 2  DNF (software), a package manager for RPM-based Linux distributions. 3  Disjunctive normal form, a standardization of a logical formula in boolean logic.
Medical Definition of Tumor necrosis factor. Tumor necrosis factor: One of multiple proteins capable of inducing necrosis (death) of tumor cells that possess a wide range of proinflammatory actions. Abbreviated TNF. TNF is a multifunctional cytokine with effects on lipid metabolism, coagulation, insulin resistance, and the function of endothelial cells lining blood vessels.