i want 4 SEQUENCES DIAGRAM from this use case:- OKI 옷 Student incorrect admin hội include add course login employees evalution reservation time include extend extend extend extend lack of money follow up financial situation make payment training course member complete basic course online include include remove empolyee view employee info promotion employee extend view std info cash not qualified include print card has no money extend pass the interview extend include extend extend choose level course exten write report apply to work receive salary modity LOK employee

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A: 1) For start and stop we have to use oval symbol  2)For calculation we have to use rectangle  3)For…

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Q: Convert the following ER diagram into relational schema

A:

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A: According to the information given. we have to find out the two themes in the table.

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A: Given :

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A:

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A: Solution is given below :

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Q: Questions are indicated in the picture below.

A: Required:

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A: the below is relational schema for above given ER diagram

Q: Which one is correct

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A:

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A: The SQL queries for the given questions are provided below.

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A: Answer the above question are as follows

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A: Introduction of normal form

Q: nvert ER diagram to relation m

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A: Level-0 is also known as context diagram. It shows the basic design and overview of the system.…