Identify a problem context suitable for a single$-$function Mobile app. Explain the origin of the problem context. Where and how did you come across the problem context? Detail out the problem context. Map the system and system dependencies. Work out the main functions and expected behaviours. Look at competing solutions and determine the detailed FBS of at least one competing solution.

You can use the $5$Ws$1$H questions across the COSMOS Dimension in the process, but you can just apply any other framework$($s$)$ you are comfortable with.