Draw an EER diagram for the following situation: City Transportation Authority needs to keep track of the traffic through and the toll revenues collected from the toll bridges, tunnels, and road toll stops (all of these are toll collection points) managed by the authority. Each toll collection point has a unique name. Toll collection point data that should be maintained are a description, the day operations started at the collection point, and location coordinates. Each toll collection point has a number of toll booths identified by a toll booth number, some of which are manned and some unmanned (using the city's QuickLane collection system). The city wants to separately track passenger vehicles, trucks, buses, and motorcycles. Each of these categories has a different toll amount at each toll collection point. At the vehicle level, only those vehicles using the QuickLane system can be identified with their license plate number; the make and model of each vehicle are also maintained in the
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Modern Database Management
- Database Systems: System Description: Branches Dream Home has branch offices in cities throughout the United Kingdom. Each branch office is allocated members of staff, including a Manager, who manages the operations of the office. The data describing a branch office includes a unique branch number, address (street, city, and postcode), telephone numbers (up to a maximum of three), and the name of the member of staff who currently manages the office. Additional data is held on each Manager, which includes the date that the Manager assumed his or her position at the current branch office, and a monthly bonus payment based upon his or her performance in the property for rent market. Staff Members of staff with the role of Supervisor are responsible for the day-to-day activities of an allocated group of staff called Assistants (up to a maximum of 10, at any one time). Not all members of staff are assigned to a Supervisor. The data stored regarding each member of staff includes staff…arrow_forwardLuxury-Oriented Scenic Tours (LOST) provides guided tours to groups of visitors to the Washington, D.C. area. In recent years, LOST has grown quickly and is having difficulty keeping up with all of the various information needs of the company. The company's operations are as follows: LOST offers many different tours. For each tour, the tour name, approximate length (in hours), and fee charged is needed. Guides are identified by an employee ID, but the system should also record a guide's name, home address, and date of hire. Guides take a test to be qualified to lead specific tours. It is important to know which guides are qualified to lead which tours and the date that they completed the qualification test for each tour. A guide may be qualified to lead many different tours. A tour can have many different qualified guides. New guides may or may not be qualified to lead any tours, just as a new tour may or may not have any qualified guides. Every tour must be designed to visit at least…arrow_forwardProject Description A telephone book system, also known as a telephone directory, telephone address book, or Phone book, is a listing of telephone subscribers in a geographical area or subscribers to services provided by the organization that publishes the directory. Its purpose is to allow the telephone number of a subscriber identified by name and address to be found. Project Features The features of telephone book system are mainly related to adding, listing, searching, sorting, modifying and deleting telephone directory-related records. All these operations are done through Linked-List. The information contained in the telephone directory records are the first name, last name, phone number, city, address, sex and email of the person whose record is entered in the telephone directory system. Project Operations Write a JAVA program that will maintain a phone directory using a Linked-List. The program should be able to perform the following operations: Add persons details (first…arrow_forward
- Database Management Jill Bill Marketplace is a business located in Florida. Within the JBM compound, you can purchase many types of products that are related to a specific category, for example, books or antiques. JBN does not own any of the stalls that sell products, rather they rent them out to small vendors. Each vendor has to pay a monthly fee to use the Marketplace. JBM products are available to different customers who sell their products daily. Each category type (e.g. books ) is managed by a particular supervisor. A customer will order their selected product in terms of the amount from that vendor, who is also free to apply discounts on any product in his store. Other than category supervisors there are other staff that manages different departments in the mall, but they all report to two marketplace managers. The small vendors will report to the category managers on the nature of their stock and if and when restocking is required. All category managers report to the third…arrow_forwardA college offers correspondence courses to students. Each course lasts 20 weeks and is based on a weekly study module and progress test. At the end of the course students sit an invigilated examination. The college Registrar deals with enquiries and applications, and students applying who have sufficient qualifications are asked to register by completing and submitting an application form. After approval by the Academic Director, the application form is returned to the Registrar who creates a student file. The Accounts department receive the application form and using information from the student file creates an invoice that is sent to the student. Payments made are registered on the invoice file. The first batch of student material and tests is issued from the library only to students who have paid fees (this information is taken from the invoice file). Progress tests are marked by academic staff and the results, together with comments, are sent out with next week’s study block. The…arrow_forwardQ : Draw an ERD from the following business rules: Use proper notations for the type of attributes. A software system is to be developed for an educational institute. The software is intended to be used by faculty members, students and designated support staff. System administrator will also use system for system administration and management. Student’s data including names, registration number, cell numbers and address will be added and edited by Clerk. The data will be added at the time of student reporting at campus. Student can enroll into any course of their choice from the offered courses. They can also request for dropping a course. Approval of course dropping of a student will be granted or refused by academic coordinators.arrow_forward
- An E-learning website needs your help to design its database. They need to store information about teachers and online tutorials. Each teacher has a unique ID, name, and at least one field of specialty. Teachers form groups to prepare online tutorials. Each group has unique name and at least one teacher as a member. Each online tutorial has a title, date and organized by exactly one group. The title of the tutorial is unique for the group. Each tutorial consists of several sessions, described by their titles and durations. Naturally, each session is presented by one teacher and belongs to exactly one tutorial. In addition, sessions on the same tutorial have different titles. Design an ERD for this application. Note any unspecified requirements, and make appropriate assumptions to make the specification complete.arrow_forwardAccess path A database table is composed of records and fields hold data. Data is stored in records. A field is a part of a record and contains a single piece of data for the subject of the record. The access path for finding the list of books is AUTHOR: AuthorID, Lname BOOKAUTHOR: AuthorID, ISBN BOOKS: Pubdate, ISBNarrow_forwardEach publisher has a unique name; a mailing address and telephone number are also kept on each publisher. A publisher publishes one or more books; a book is published by exactly one publisher. A book is identified by its ISBN, and other attributes are title, price, and number of pages. Each book is written by one or more authors; an author writes one or more books, potentially for different publishers. Each author is uniquely described by an author ID, and we know each author’s name and address. Each author is paid a certain royalty rate on each book he or she authors, which potentially varies for each book and for each author. An author receives a separate royalty check for each book he or she writes. Each check is identified by its check number, and we also keep track of the date and amount of each check. As you develop the ERD for this problem, follow good data naming guidelines.arrow_forward
- Dentist Mobile System Create use case and sequence diagram and a set of detail use case descriptions for the following dentist mobile system, Whenever new patients are apply the first time, he/she complete a patient information by fill the form that include name, address, phone number and brief medical history, which are stored in the patient information of mobile system. When a patient request to schedule a new appointment or change an existing appointment, the system checks the appointment file for an available time. Once a good time is found for the patient, the appointment is scheduled. usually the mobile system reminder postcard to each patient two days before their appointment.arrow_forwardAn employment agency offers the service of finding the employee candidates for their clients. For this purpose, the agency has to keep track of certain particulars of the candidates such as the name, identification card numbers, address, phone numbers, data of birth, and their field of expertise. They also keep the data of their clients which is the future employer for the candidate's employee. The request for employee is forwarded to the agency by future employer along with the information regarding to the job offered. The information includes the type of jobs, offered salary, type of expertise required and the date when the employee is needed. Therefore, as a database designer, you are required to propose a database design prior to its implementation by presenting the following: (a) Identify ALL possible entities that could exist in the organization process (give suitable entity name), complete all the entities with suitable attributes together with assigned primary key. Use your own…arrow_forwardDRAW AN ER DIAGRAM FOR THE GIVEN SITUATION The video rental company has several branches throughout the USA. The data held on each branch is the branch address made up of street, city, state, and zip code, and the telephone number. Each branch is given a branch number, which is unique throughout the company. Each branch has allocated staff which includes a Manager. The manager is responsible for the day to day running of the given branch. The data held on a member of staff is his or her name, position, and salary. Each member of staff is given a staff number, which is unique throughout the company.Each branch has a stock of videos. The data held on a video is the catalog number, video number, title, category, daily rental, cost status, and the names of the main actors, and the director. The catalog number uniquely identifies each video. However, in most cases, there are several copies of each video at a branch, and the individual copies are identified using the video number. A video…arrow_forward