Assignment-2: These are the Four basic Symbols of DFD Student Source Sink Payment Receipt Process a) Now Take a look to the Context Level Diagram of a Course Registration System Class Request Student Schedule Data Flow Data Store 0 Course Registration System Class roster Professor Enrollment Registrar statistics

Assignment-2: These are the Four basic Symbols of DFD Student Source Sink Payment Receipt Process a) Now Take a look to the Context Level Diagram of a Course Registration System Class Request Student Schedule Data Flow Data Store 0 Course Registration System Class roster Professor Enrollment Registrar statistics

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Can you please help me to convert the class diagram into an ERD diagram with the relationships, constraints, fields and primary/foreign keys.Donor username: String +password: int PreviousDonations +donation Total: int setUsername(); getPassword(): setPassword() + calculate Total: Checkout setDonation Total(): display PreviousDonations(); DonationItems amount double 1.. calculate Total: Checkout) target double setTarget() displayDonationCount() 1 selAmount Manager Cart calculate Total double userinfo: String setTotal) getCardDetails() displayCheckout: Payment +payment CheckCard Featureltoms +amount: double calculate Total: Checkout) getAmount) displayFeaturettems(): number: int expDate: int cvNum: int Authorized Debit
For the given design, Which of the following is NOT true about the design? Select one: a. It supports modular design. b. The AuthenticateUser sequence diagram can be reused only after a doB message call. c. The AuthenticateUser sequence diagram can be reused only when the authenticate() message is invoked on a B object. d. The DoFoo sequence diagram can be reused in any context where a B object and a C object are involved. e. The doB message must be called after the doA message.
Which of the following is NOT true about UML? Select one: a. UML class diagram is used to specify the class structure of a system. b. UML is a standard notation for modeling an object-oriented system. c. UML system sequence diagram describes the internal behaviors of the system under development. d. UML class diagram can be used for specifying a domain model. e. UML use case diagram is used to identify use cases and their relations to actors.
You are asked to do a detailed design of part of a system using class diagram, modeling interactions and behaviour for a part of a library system. This part can be described as a use case: checkout an library item. In this use case, a librarian use the system to check out an item for a legitimate borrower. The system need to check the borrower’s record first and then update the library data, the borrower’s record etc. Design the graphic user interface for this use-case.
Let's imagine we develop a browser based training system to help people prepare for a certification exam.A user can request a quiz for the system.the system picks a set of questions from its database and composes them together to make a quiz.it rates the users answers and gives hints if the user requests it. draw a use case diagram. pick up two case(s) and write specification.
VirtualClass: A Learning Management System for Online Education" system:A Brainstorm with your team to develop a set of Class responsibilities and collaboration “CRC cards” for all entity type classes. Add the CRC index cards to Appendix E of your SRS document under class diagrams. B Based on the responsibilities and collaborations identified in your CRC index cards update your first cut domain class diagram with the following: a. Class attribute descriptions and visibilities b. Signature methods with the respective parameters and visibilities Add the class diagram to Appendix E of your SRS document under class diagrams.
You were hired to develop the software for a robotic cook, responsible for preparing orders in a restaurant. The robot receives the orders and queues them for execution. Draw a UML diagram to explain how you would use the Command design pattern for representing how you represent the orders to the robot (e.g., Clean, PrepareOnionSoup, PrepareHamburguer).
4. Define a class, subclass, and superclass and provide three examples of each. 5. Define a use case and a use case diagram and prepare a sample of each. 6. Why is it important to use a modeling tool and not just a diagramming tool during O-O analysis?
Draw an ER diagram for the following car sharing system: In the car sharing system, a CarMatch application has record of anyone who would like to share his/her car, known as a CarSharer. An Administrator registers all the potential CarSharers and with their first name, last name, home address, and date of birth. Each CarSharer is also assigned a unique id. A CarSharer can take policies issued by the Insurance Company. Each policy has a number, premium, and a start date. A CarSharer needs to know the start and destination address of each Journey.
Note - Give a step-by-step and brief explanation for your solution. To develop a user interface for our already-existing parking management system (class diagram included below – image 1), while ensuring that our code is loosely coupled, we need to provide a layer on top of the ParkingOffice class that will accept commands and send them on. This layer will be the ParkingService (class diagram included below- image 2) For simplicity, we’ll represent the commands and their arguments as strings. We must implement the following commands: CUSTOMER - register a customer, along with the appropriate information, with the parking office. The sequence diagram for this command is shown below (Image 2). CAR - register a car with the parking office and provide a permit for the car. The sequence diagram is very similar to that of the CUSTOMER registration. Based on the diagram below use java code to create the following classes and interfaces and implement the behavior described in the sequence…
Note - Give a step-by-step and brief explanation for your solution. To develop a user interface for our already-existing parking management system (class diagram included below – image 1), while ensuring that our code is loosely coupled, we need to provide a layer on top of the ParkingOffice class that will accept commands and send them on. This layer will be the ParkingService (class diagram included below- image 2) For simplicity, we’ll represent the commands and their arguments as strings. We must implement the following commands: CUSTOMER - register a customer, along with the appropriate information, with the parking office. The sequence diagram for this command is shown below (Image 2). CAR - register a car with the parking office and provide a permit for the car. The sequence diagram is very similar to that of the CUSTOMER registration. Based on the diagram below use java code to create the following classes and interfaces and implement the behavior described in the sequence…
Which one is FALSE about models during software development? A Models improve the communication between client and developer. B A model is an abstraction. C Transforming an object model into source code is called model transformation. D System model contains three models: functional model, object model, and dynamic model. E Models are used to deal with complexity.