Referring now to FIG. 5, a flowchart 500 for composable user journeys according to the IEF is shown, according to an example embodiment. In embodiments, the functions of flowchart 500 for composable user journeys for application authentication may be performed by a trustframework host system (i.e., an identity policy host) using information and services from user devices, application service providers, identity operators, and verification providers, as described herein. For purposes of illustration, flowchart 500 of FIG. 5 is described with respect to system 200 of FIG. 2 and its subcomponents including engine 208 and policies and profiles 222, as well as system 100 of FIG. 1. That is, system 200 of FIG. 2 may perform various functions and operations in accordance with flowchart 500 for composable user journeys. Flowchart 500 may be an embodiment of flowchart 300 of FIG. 3, e.g., of step 312. Further structural and operational examples will be apparent to persons skilled in the relevant art(s) based on the following description. Flowchart 500 is described as follows.