MileStone-5:-Preliminary-Design.md

 **Action plan:**
 
-Zhong and Zhang finishes to draw the storyboard. (1 hour) Liu and Li finishes the design of the system architecture.(two hours) As for the next action plan, our four will focus on finishing the class diagram together and estimate 1 hour. Each person will finish 2 to 3 Interaction individually (1 hour per person). For the implementation and test, we also finish it together because we should keep tracking on each step here. It will take 4 to 5 hours as estimate. 
+Zhong and Zhang finishes to draw the storyboard. (1 hour) Liu and Li finishes the design of the system architecture.(two hours) As for the next action plan, our four will focus on finishing the class diagram together and estimate 1 hour. Each person will finish 2 to 3 Interaction individually (1 hour per person). For the implementation and test, we also finish it together because we should keep tracking on each step here. It will take 4 to 5 hours as estimate.
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+
+**System architecture:**
+
+Key components and Package:
+Web is our package for order selection, customer selection, shopping cart, user, supervisor.
+JS is our package for set_info, set to DB, set_info
+DB is our package for orders, customer
+
+Interface:
+get_Info and set_Info 
+(get and set the information from customer based on database)
+
+Association between components:
+Data Access: Used to connect components we have
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