Uncertainty modeling is a process that characterizes the sources of uncertainty, propagates the uncertainty through the analyses, and quantifies the effects of the uncertainty on the quantities of interest.

Computer-Aided-Design "Features that fit the end-user needs." (Hoffmann and Joan-Arinyo 1998; 321) [Hoffmann, C. M., & Joan-Arinyo, R. (1998). On user-defined features. Computer-Aided Design, 30(5), 321-332.]

Software "A user interface is a linkage between a human and a device or system that allows the human to interact with (e.g., exchange information with) that device or system." (Linux Information Project 2005; web) [The Linux Information Project. (2005). User Interface Definition. Retrieved from http://www.linfo.org/user_interface.html]

Information-Technology When "stakeholders across the organization have the right expectations regarding the business impact of the technology initiative. Executive management, finance and IT/end-users tend to have different perspectives and goals. If those goals are not aligned, the project will be doomed to failure... Stakeholder alignment must not only exist at the outset — it must be maintained throughout the life of the project." (The SSD Team 2017; web) [The SSD Team. (2017). Stakeholder Alignment: The Critical Foundation of Any IT Initiative. Retrieved from https://www.ssdel.com/it-budgeting-and-planning/stakeholder-alignment-critical-foundation-initiative/]

Geology: Data collected by the United States Geological Survey. As the "Nation's largest water, earth, and biological science and civilian mapping agency, USGS collects, monitors, analyzes, and provides science about natural resource conditions, issues, and problems." The USGS carries "out large-scale, multidisciplinary investigations" enabling them to "provide impartial scientific information to resource managers, planners, and other customers." (USGS 2019; web) [USGS. (2019) Who We Are. Retrieved from https://www.usgs.gov/about/about-us/who-we-are]