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Bezzdna [24]
4 years ago
11

You are modeling a small part of an online flight reservation system, according to the following description. A flight is a sing

le non-stop hop between a pair of cities. A booking can include several flights and travelers (think of a family vacation hitting multiple cities), with the requirement that all the travelers are on all the flights in a booking. Furthermore, every booking has a single owner who is one of the travelers on that booking (think one family member booking the tickets for the entire family), and the owner can manage functionality on the system that other travelers cannot. A separate ticket is issued and priced individually for each traveler on a booking, and the ticket applies to all flights within that booking. Draw the most appropriate UML diagram for your model. Identify entities (classes/abstract classes/interfaces) clearly, and separate them according to their functionality--the separation should be faithful to the description above. Set up relationships between entities as precisely as possible. Inside each class in the diagram, only list the class name and minimal number of attributes required to characterize objects of that class (no operations needed). For the attributes, you are not required to show access level. For any ONE association, code the classes involved, detailing the fields ONLY.

Computers and Technology
1 answer:
Law Incorporation [45]4 years ago
4 0

Answer:

Explanation:

The database schema can have following tables:

1. airport_table(apcode, apcity, apcountry)

2. airline_table(aid, aname, acountry)

3. flight_table(fid, aid, arrtime, depttime)

4. passenger_table(pid, pname, pcity, pcountry)

5 booking_table(bid, bdate, pid)

See attachment for the diagram

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Why is it necessary to understand conflict of interest and how it could affect you at work​
Anastasy [175]

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Conflict of interest is a common issue in the workplace. Most of us have heard someone say, “It’s who you know, not what you know.” We have heard co-workers complain that a manager’s relative always gets the biggest raise or the best assignment. We might have seen colleagues accept gifts from potential vendors. Maybe a co-worker leaves work 20 minutes early every day so she can get to her second job. A supervisor may give a co-worker time off from work to do volunteer work or might allow employees to solicit donations and funds in the workplace, whether for the Girl Scouts or a local school function. Even though these situations are very different, they all fall under the heading of “conflict of interest.”

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Answer:

A

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