1. A computer system comprising: at least one processor; non-transitory computer-readable storage medium including instructions executable by the at least one processor, the instructions configured to implement, a selector configured to receive a selection of a function, wherein the function or a portion thereof is customized and an execution of the function yields one or more results for verification; an input handler configured to receive values corresponding to one or more inputs to the function; a step engine configured to determine a plurality of steps associated with an execution of the function including determining a cardinality associated with each step, the cardinality representing a ratio of inputs and outputs for a respective step; an execution engine configured to execute the function, including the plurality of steps, based on the values provided as the one or more inputs; and a view generator configured to provide the plurality of steps of the function in association with the values and one or more results of the execution for the verification, the view generator providing selectable links associated with one or more of the plurality of steps, wherein, upon selection of a selectable link, the view generator is configured to provide a maintenance view for a respective step, the maintenance view displaying customizations associated with the respective step.