b. Consider a tiny social network containing high school students and their "crushes" (desired romantic relationships example: BTS or TWICE). Each student may have a crush on at most one other student and associated with each crush is the length of time the crush has been going on. Students have a name and a grade, and names are unique. Draw a UML diagram that models this information. Make sure to capture the asymmetry and multiplicity of the crush relationship.

SCENARIO A manufacturing company produce equipment and sell them. The company needs a system to manage stock operations. It is explained below. Equipments are manufactured by using parts. Name, manufacturing date, current status of manufacturing must be known. Some of the equipments must be tested. We want to define all parts with their name, description and type. Only the defined parts can be bought. Once parts are bought, they are located into shelves in warehouses. Each physical part uniquely identified with number. We want to know when each part is bought. Each bought part may have different warranty period. We have to use the bought part in manufacturing by taking this into account. Warehouses are located in different part of the company. Size, type of the warehouses may be different. Equipments are manufactured for customers. It is needed to know the equipments of customers. Some of the customers pay the transportation cost. Name, address, tax number type of the customer will…

Draw these on the given diagram: Associations (aggregations/compositions if needed) with names and multiplicities, generalization, attributes (withvisibility and attribute types).

Draw UML class diagram according to descriptions given below. Please include appropriate labeling and multiplicity in your diagrams. You do not need to include the attributes and operations for the classes. A Rectangle object is composed of exactly four Line objects A Customer object is able to initiate zero or more Transaction A Student Object must enrolls in at least one, at most five Subject A Mouse object is kind of a Rodent A Rodent object is a kind of Mammal Object.

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6. How are class models, state models, and interaction models connect or related to one another?

Here, there are two different theories to consider: the Leader-Member Exchange (LMX) Theory and the Path-Goal Theory. Use examples from everyday life to make any point more understandable.

Need a clear diagram. A customer can place an order online. For each item, the order can be sent to the customer either by courier or by regular delivery depending upon their membership type. The customers can be premium users or free users. Only the premium users will get the courier service. If the item is made up of glass, then it is dispatched by a careful distributor instead of regular. Both the users can pay by card or cash, where the system sends a confirmation message. Optionally, if the member selected the notification option in the order, the business will send a confirmation note to the user.Draw the sequence diagram for the above scenario.

By using this table answer this question in SQL : Write a SQL query, which shows a list of all employees last name, their department names and their department city where that department is located from the employees table.  If an employee does not belong to a department, then their department number and department name should show as “N/A” and their department city should show up as  “No City info Found”.  MAKE SURE you have all the employees displayed including the employees who do not have a department.

Consider the following class diagram that models a company activities. A company is composed of many branches and each branch is located in a different city. Company's customers are subdivided into two categories: Regular and Privileged. Privileged customers are those that made at least 10 orders to the company. A customer can order items to the branch in his city, if any. The order will than be recorded by this branch. An order consists of a list of items. A discount of 5% will be applied for privileged customers. A discount of 10% will be applied if the order contains more than 8 items or if the total price of the order exceeds 100. Customer Order Item name: String name: String 0. date:Date /discount int name: String priceint 0. 0. canMakeOrder():Boolean isPrivileged() Boolean 0. 0. City Branch 0..1 name: String naner String Express the following constraints in OCL. 1. The number of items in an order does not exceed 15. 2. The number of items in an order does not exceed 10 for…