PLS READ THE QUESTION carefully pls A stationery store has been running for 10 years and is located near a campus where

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PLS READ THE QUESTION carefully pls
A stationery store has been running for 10 years and is locatednear a campus where you are studying in USA. You often stop by thisstore to buy stationery, markers, rulers, and photocopies ofnecessities for college. So far, the store runs manually whichmeans that sales transactions are all recorded manually because sofar you are served directly without going through a computer orsystem.
Although when the new stock comes, it turns out that the ownerstill uses microsoft excel to record purchases, this you know fromconversations with the store owner. Because you are a frequentvisitor to this store, one day the owner said that he will soonmove to another city in 3 months because of urgent matters and thestore will be taken care of by his son. His son has a place to livein Bogor so he is likely to recruit staff to guard the store. Sofar, there have never been employees because the owner has beenguarding his own store so far, the owner feels that there is noneed to use the system and because the products sold are also nottoo many so there is actually not so much problem. As a studentmajoring in Information Systems, of course, you offer the owner tobe able to use the system only so that the store can be left toemployees and be more controlled. A simple cashier system that canrecord purchases and sales transactions. Because the owner hasnever tried and knows how this kind of system works, then youprovide some references that are currently very much online and canbe downloaded via smartphones. The store owner seems veryinterested in your explanation, especially if you already know thebusiness process of similar applications. Next week When you visitthe store again, the shop owner says that he has had a lot ofdiscussions with his son and finally they have 1 plan
The first plan: is that the store continues to run as usual butuses a system so that it can be left to employees and it is easierto control sales and purchases (starting from purchases tosuppliers, recording new products, sales transactions, and salesreports)
The shop owner also had doubts between the two options but whatis clear is that the shop owner said that he prefers to create hisown system from scratch rather than buy a ready-made one because itadjusts to his wishes. Therefore, seeing your abilities, the shopowner intends to recruit you to develop his system. You agreed tohelp and you also brought in some friends and formed a projectteam. Of course, you are paid professionally.
question
1. Create 2 multilayer sequence diagrams in addition to login,signup, logout, change password!
2. Create an Updated Class Diagram from the case above