According to the $$Goal$-$Design Scale$,$ requirements for a software system can be described at four different levels $($i$.$e$.,$ the goal, domain, product and design levels$).$

$(1)$ Describe what the requirements at each of these four levels are for;

$(2)$ Give an example requirement for each of these four levels from your assignments concerning the Online Healthy Foods Store System.According to the $$Goal$-$Design Scale$,$ requirements for a software system can be described at four different levels $($i$.$e$.,$ the goal, domain, product and design levels$).$

$(1)$ Describe what the requirements at each of these four levels are for;

$(2)$ Give an example requirement for each of these four levels from your assignments concerning the Online Healthy Foods Store System.