ONE of the most challenging aspects of app testing is writing test scenarios for mobile applications. However, scenario-based testing is the BEST method for testing complicated systems, so be sure to keep these tips in mind when preparing mobile application testing scenarios.  

• Examine the Requirement Document, including the BRS (Business Requirement Specification), SRS (Software Requirement Specification), as well as the FRS (Functional Requirement Specification) pertaining to the SUT (System Under Test). 
• Design simple test scenarios rather than complex ones. Keep them concise and simple, so they are easy to understand. 
• Generate test scenarios that cover all possible features of the target application. Users and business flows involved in the operation of the application/website must be covered by these scenarios. 
• Put an EMPHASIS on project METHODOLOGY. 
• Identify the priorities of your customers and devise test scenarios accordingly. 
• Keep an eye on the expected outcome.