Which is not a popular method for documenting the Steps of a Task?

Flowchart with swim-lanes, while a useful method for visualizing processes and indicating responsibilities, may not always be classified as a popular method for documenting the specific steps of a task when compared to the other options.

Simple text steps are straightforward and establish a clear sequence of actions. UML activity diagrams are widely recognized in modeling methodologies for illustrating workflows and processes in a structured format. Use Case descriptions provide a detailed narrative on interactions within a system, focusing on the steps to complete tasks from a user's perspective.

In contrast, although flowcharts with swim-lanes are certainly effective in outlining processes, they typically emphasize the roles and responsibilities of different participants rather than concentrating solely on the chronological steps of a task. Thus, while they can serve to organize tasks within a broader context, they are not primarily focused on detailing step-by-step sequences like the other methods.