The interface of the UP Finder. The interface contains 5 major functional units, including the Organism, Condition/Growth, Targeted product, Method and Output. Condition is the exchange reactions of SBML models with their constraints, and Growth indicates the specific biomass objective function (e.g. autotrophic or heterotrophic growth for Synechocystis sp. PCC 6803). Method contains two computational methods: UPA (up-regulated pathway analysis) and FBA (flux balance analysis).