You are tasked with testing a new micro service that allows for the editing of member details in an

online application. You have been given the below system diagram along with the following

requirements:

a$)$ A member can only be edited following successful log in of their account

b$)$ Only names $($up to $128$ characters$)$ and contact numbers $(10$ digits$)$ can be updated

c$)$ Upon saving their details, a message needs to be sent to the customers contact address

confirming that details have been changed