1、 領(lǐng)域建模

• a. 閱讀 Asg_RH 文檔，按用例構(gòu)建領(lǐng)域模型。

  • 按 Task2 要求，請使用工具 UMLet，截圖格式務必是 png 并控制尺寸
  • 說明：請不要受 PCMEF 層次結(jié)構(gòu)影響。你需要識別實體（E）和 中介實體（M，也稱狀態(tài)實體）
    • 在單頁面應用（如 vue）中，E 一般與數(shù)據(jù)庫構(gòu)建有關(guān)， M 一般與 store 模式 有關(guān)

    • 在 java web 應用中，E 一般與數(shù)據(jù)庫構(gòu)建有關(guān)， M 一般與 session 有關(guān)

      
      
      領(lǐng)域模型

• b. 數(shù)據(jù)庫建模(E-R 模型)

  • 按 Task 3 要求，給出系統(tǒng)的 E-R 模型（數(shù)據(jù)邏輯模型）

    
    
    E-R圖.png

  • 建模工具 PowerDesigner（簡稱PD） 或開源工具 OpenSystemArchitect

  • 不負責的鏈接 http://www.cnblogs.com/mcgrady/archive/2013/05/25/3098588.html

  • 導出 Mysql 物理數(shù)據(jù)庫的腳本

-- MySQL Script generated by MySQL Workbench
-- Sun Apr 29 18:36:52 2018
-- Model: New Model    Version: 1.0
-- MySQL Workbench Forward Engineering

SET @OLD_UNIQUE_CHECKS=@@UNIQUE_CHECKS, UNIQUE_CHECKS=0;
SET @OLD_FOREIGN_KEY_CHECKS=@@FOREIGN_KEY_CHECKS, FOREIGN_KEY_CHECKS=0;
SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE='TRADITIONAL,ALLOW_INVALID_DATES';

-- -----------------------------------------------------
-- Schema mydb
-- -----------------------------------------------------

-- -----------------------------------------------------
-- Schema mydb
-- -----------------------------------------------------
CREATE SCHEMA IF NOT EXISTS `mydb` DEFAULT CHARACTER SET utf8 ;
USE `mydb` ;

-- -----------------------------------------------------
-- Table `mydb`.`Traveller`
-- -----------------------------------------------------
CREATE TABLE IF NOT EXISTS `mydb`.`Traveller` (
  `id` INT NOT NULL AUTO_INCREMENT,
  `email` VARCHAR(45) NOT NULL,
  `password` VARCHAR(45) NOT NULL,
  PRIMARY KEY (`id`))
ENGINE = InnoDB;


-- -----------------------------------------------------
-- Table `mydb`.`CreditCard`
-- -----------------------------------------------------
CREATE TABLE IF NOT EXISTS `mydb`.`CreditCard` (
  `creditcard_id` INT NOT NULL AUTO_INCREMENT,
  `traveller_id` INT NOT NULL,
  `card_number` VARCHAR(45) NOT NULL,
  PRIMARY KEY (`creditcard_id`, `traveller_id`),
  INDEX `fk_CreditCard_Traveller1_idx` (`traveller_id` ASC),
  CONSTRAINT `fk_CreditCard_Traveller1`
    FOREIGN KEY (`traveller_id`)
    REFERENCES `mydb`.`Traveller` (`id`)
    ON DELETE NO ACTION
    ON UPDATE NO ACTION)
ENGINE = InnoDB;


-- -----------------------------------------------------
-- Table `mydb`.`Destination`
-- -----------------------------------------------------
CREATE TABLE IF NOT EXISTS `mydb`.`Destination` (
  `destination_id` INT NOT NULL AUTO_INCREMENT,
  `name` VARCHAR(45) NOT NULL,
  PRIMARY KEY (`destination_id`))
ENGINE = InnoDB;


-- -----------------------------------------------------
-- Table `mydb`.`Hotel`
-- -----------------------------------------------------
CREATE TABLE IF NOT EXISTS `mydb`.`Hotel` (
  `hotel_id` INT NOT NULL AUTO_INCREMENT,
  `destination_id` INT NOT NULL,
  `name` VARCHAR(45) NOT NULL,
  PRIMARY KEY (`hotel_id`, `destination_id`),
  INDEX `fk_Hotel_Destination1_idx` (`destination_id` ASC),
  CONSTRAINT `fk_Hotel_Destination1`
    FOREIGN KEY (`destination_id`)
    REFERENCES `mydb`.`Destination` (`destination_id`)
    ON DELETE NO ACTION
    ON UPDATE NO ACTION)
ENGINE = InnoDB;


-- -----------------------------------------------------
-- Table `mydb`.`Room`
-- -----------------------------------------------------
CREATE TABLE IF NOT EXISTS `mydb`.`Room` (
  `room_id` INT NOT NULL AUTO_INCREMENT,
  `hotel_id` INT NOT NULL,
  `price` DOUBLE NOT NULL,
  PRIMARY KEY (`room_id`, `hotel_id`),
  INDEX `fk_Room_Hotel_idx` (`hotel_id` ASC),
  CONSTRAINT `fk_Room_Hotel`
    FOREIGN KEY (`hotel_id`)
    REFERENCES `mydb`.`Hotel` (`hotel_id`)
    ON DELETE NO ACTION
    ON UPDATE NO ACTION)
ENGINE = InnoDB;


-- -----------------------------------------------------
-- Table `mydb`.`Reservation`
-- -----------------------------------------------------
CREATE TABLE IF NOT EXISTS `mydb`.`Reservation` (
  `reservation_id` INT NOT NULL AUTO_INCREMENT,
  `room_id` INT NOT NULL,
  `hotel_id` INT NOT NULL,
  `creditcard_id` INT NOT NULL,
  `traveller_id` INT NOT NULL,
  `checkin_time` DATETIME NOT NULL,
  `checkout_time` DATETIME NOT NULL,
  `table1col` VARCHAR(45) NULL,
  PRIMARY KEY (`reservation_id`, `room_id`, `hotel_id`, `creditcard_id`, `traveller_id`),
  INDEX `fk_Reservation_Room1_idx` (`room_id` ASC, `hotel_id` ASC),
  INDEX `fk_Reservation_CreditCard1_idx` (`creditcard_id` ASC, `traveller_id` ASC),
  CONSTRAINT `fk_Reservation_Room1`
    FOREIGN KEY (`room_id` , `hotel_id`)
    REFERENCES `mydb`.`Room` (`room_id` , `hotel_id`)
    ON DELETE NO ACTION
    ON UPDATE NO ACTION,
  CONSTRAINT `fk_Reservation_CreditCard1`
    FOREIGN KEY (`creditcard_id` , `traveller_id`)
    REFERENCES `mydb`.`CreditCard` (`creditcard_id` , `traveller_id`)
    ON DELETE NO ACTION
    ON UPDATE NO ACTION)
ENGINE = InnoDB;


SET SQL_MODE=@OLD_SQL_MODE;
SET FOREIGN_KEY_CHECKS=@OLD_FOREIGN_KEY_CHECKS;
SET UNIQUE_CHECKS=@OLD_UNIQUE_CHECKS;

• 簡單敘說 數(shù)據(jù)庫邏輯模型 與 領(lǐng)域模型 的異同
  數(shù)據(jù)庫邏輯模型與領(lǐng)域模型的相同之處是他們都是對一個系統(tǒng)的描述方法，不同之處是領(lǐng)域模型對系統(tǒng)的描述包括了數(shù)據(jù)以及其之間的操作方法與關(guān)系，而數(shù)據(jù)庫邏輯模型需要考慮實體之間的主鍵或外鍵關(guān)聯(lián)，比領(lǐng)域模型只考慮一對一還是一對多的關(guān)系