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Problem 32 Speedy Drop is a company thàt čárries letters and pa. mpany own fleet of small airplanes, and employs pilots. Airplanes are identified by registration number, which is always a seven-digit decimal string. The Company records the purchase date and the date of the last service for each individual airplane. Each individual airplane belongs to a certain airplane type, defined by the manufacturer and model of the airplane. Addi- tionally, types are characterized by maximum permitted load and maximum permitted distance that may be covered in an uninterrupted flight. Personal information kept about each pilot consists of the social security number, first and last names, and date of birth. A pilot may be assigned to of the Company issues a formal permit that authorizes the pilot to operate airplanes of that type. The Company records the date each such permit is issued. Since each airplane is staffed by two pilots, each pilot may name one other pilot as the preferred flight partner. This information is stored and consulted at the discretion of the Flight Scheduling Officer. on an individual airplane only after the Expert Committee

Problem 32 Speedy Drop is a company thàt čárries letters and pa. mpany own fleet of small airplanes, and employs pilots. Airplanes are identified by registration number, which is always a seven-digit decimal string. The Company records the purchase date and the date of the last service for each individual airplane. Each individual airplane belongs to a certain airplane type, defined by the manufacturer and model of the airplane. Addi- tionally, types are characterized by maximum permitted load and maximum permitted distance that may be covered in an uninterrupted flight. Personal information kept about each pilot consists of the social security number, first and last names, and date of birth. A pilot may be assigned to of the Company issues a formal permit that authorizes the pilot to operate airplanes of that type. The Company records the date each such permit is issued. Since each airplane is staffed by two pilots, each pilot may name one other pilot as the preferred flight partner. This information is stored and consulted at the discretion of the Flight Scheduling Officer. on an individual airplane only after the Expert Committee

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Please draw the ER diagram. Explain how you know which one is entity, attribute, and all constraints. Explain each step of the diagram.

 
Problem 32 Speedy Drop is a company that carries letters and parcels. The company relies on its own fleet of small airplanes, and employs pilots. Airplanes are identified by registration number, which is always a seven-digit decimal string. The Company records the purchase date and the date of the last service for each individual airplane. Each individual airplane belongs to a certain airplane type, defined by the manufacturer and model of the airplane. Addi- tionally, types are characterized by maximum permitted load and maximum permitted distance that may be covered in an uninterrupted flight. Personal information kept about each pilot consists of the social security number, first and last names, and date of birth. A pilot may be assigned to fly on an individual airplane only after the Expert Committee of the Company issues a formal permit that authorizes the pilot to operate airplanes of that type. The Company records the date each such permit is issued. Since each airplane is staffed by two pilots, each pilot may name one other pilot as the preferred flight partner. This information is stored and consulted at the discretion of the Flight Scheduling Officer. Provide a careful drawing of the complete ER-diagram for this (portion of) the database. Indicate carefully all the applicable constraints.
Transcribed Image Text:Problem 32 Speedy Drop is a company that carries letters and parcels. The company relies on its own fleet of small airplanes, and employs pilots. Airplanes are identified by registration number, which is always a seven-digit decimal string. The Company records the purchase date and the date of the last service for each individual airplane. Each individual airplane belongs to a certain airplane type, defined by the manufacturer and model of the airplane. Addi- tionally, types are characterized by maximum permitted load and maximum permitted distance that may be covered in an uninterrupted flight. Personal information kept about each pilot consists of the social security number, first and last names, and date of birth. A pilot may be assigned to fly on an individual airplane only after the Expert Committee of the Company issues a formal permit that authorizes the pilot to operate airplanes of that type. The Company records the date each such permit is issued. Since each airplane is staffed by two pilots, each pilot may name one other pilot as the preferred flight partner. This information is stored and consulted at the discretion of the Flight Scheduling Officer. Provide a careful drawing of the complete ER-diagram for this (portion of) the database. Indicate carefully all the applicable constraints.
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