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(qǐng)使用工具 UMLet，截圖格式務(wù)必是 png 并控制尺寸
• 說(shuō)明：請(qǐng)不要受 PCMEF 層次結(jié)構(gòu)影響。你需要識(shí)別實(shí)體（E）和 中介實(shí)體（M，也稱狀態(tài)實(shí)體）
  • 在單頁(yè)面應(yīng)用（如 vue）中，E 一般與數(shù)據(jù)庫(kù)構(gòu)建有關(guān)， M 一般與 store 模式 有關(guān)

  • 在 java web 應(yīng)用中，E 一般與數(shù)據(jù)庫(kù)構(gòu)建有關(guān)， M 一般與 session 有關(guān)

    
    
    hw5.png

b. 數(shù)據(jù)庫(kù)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）
• 建模工具 PowerDesigner（簡(jiǎn)稱PD） 或開(kāi)源工具 OpenSystemArchitect
• 不負(fù)責(zé)的鏈接 http://www.cnblogs.com/mcgrady/archive/2013/05/25/3098588.html
• 導(dǎo)出 Mysql 物理數(shù)據(jù)庫(kù)的腳本
• 簡(jiǎn)單敘說(shuō) 數(shù)據(jù)庫(kù)邏輯模型 與 領(lǐng)域模型 的異同

ER模型

-- MySQL Script generated by MySQL Workbench
-- Wed May  2 13:55:25 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
-- -----------------------------------------------------
DROP SCHEMA IF EXISTS `mydb` ;

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

-- -----------------------------------------------------
-- Table `mydb`.`location`
-- -----------------------------------------------------
DROP TABLE IF EXISTS `mydb`.`location` ;

CREATE TABLE IF NOT EXISTS `mydb`.`location` (
  `code` INT NOT NULL,
  `name` VARCHAR(45) NULL,
  `city` VARCHAR(45) NULL,
  `region` VARCHAR(45) NULL,
  `town` VARCHAR(45) NULL,
  PRIMARY KEY (`code`))
ENGINE = InnoDB;


-- -----------------------------------------------------
-- Table `mydb`.`hotel`
-- -----------------------------------------------------
DROP TABLE IF EXISTS `mydb`.`hotel` ;

CREATE TABLE IF NOT EXISTS `mydb`.`hotel` (
  `name` VARCHAR(45) NOT NULL,
  `address` VARCHAR(100) NULL,
  `star` INT NULL,
  `description` VARCHAR(200) NULL,
  `hot_index` INT NULL,
  `location_code` INT NOT NULL,
  PRIMARY KEY (`name`, `location_code`),
  INDEX `fk_hotel_location1_idx` (`location_code` ASC),
  CONSTRAINT `fk_hotel_location1`
    FOREIGN KEY (`location_code`)
    REFERENCES `mydb`.`location` (`code`)
    ON DELETE NO ACTION
    ON UPDATE NO ACTION)
ENGINE = InnoDB;


-- -----------------------------------------------------
-- Table `mydb`.`traveller`
-- -----------------------------------------------------
DROP TABLE IF EXISTS `mydb`.`traveller` ;

CREATE TABLE IF NOT EXISTS `mydb`.`traveller` (
  `name` VARCHAR(45) NOT NULL,
  `gender` INT NULL,
  `email` VARCHAR(45) NULL,
  PRIMARY KEY (`name`))
ENGINE = InnoDB;


-- -----------------------------------------------------
-- Table `mydb`.`reservation`
-- -----------------------------------------------------
DROP TABLE IF EXISTS `mydb`.`reservation` ;

CREATE TABLE IF NOT EXISTS `mydb`.`reservation` (
  `check_in_date` DATE NOT NULL,
  `check_out_date` DATE NULL,
  `room` VARCHAR(45) NULL,
  `hotel_name` VARCHAR(45) NOT NULL,
  `traveller_name` VARCHAR(45) NOT NULL,
  PRIMARY KEY (`check_in_date`),
  INDEX `fk_reservation_hotel_idx` (`hotel_name` ASC),
  INDEX `fk_reservation_traveller1_idx` (`traveller_name` ASC),
  CONSTRAINT `fk_reservation_hotel`
    FOREIGN KEY (`hotel_name`)
    REFERENCES `mydb`.`hotel` (`name`)
    ON DELETE NO ACTION
    ON UPDATE NO ACTION,
  CONSTRAINT `fk_reservation_traveller1`
    FOREIGN KEY (`traveller_name`)
    REFERENCES `mydb`.`traveller` (`name`)
    ON DELETE NO ACTION
    ON UPDATE NO ACTION)
ENGINE = InnoDB;


-- -----------------------------------------------------
-- Table `mydb`.`room_infomation`
-- -----------------------------------------------------
DROP TABLE IF EXISTS `mydb`.`room_infomation` ;

CREATE TABLE IF NOT EXISTS `mydb`.`room_infomation` (
  `room_type` INT NOT NULL,
  `price` INT NULL,
  PRIMARY KEY (`room_type`))
ENGINE = InnoDB;


-- -----------------------------------------------------
-- Table `mydb`.`room`
-- -----------------------------------------------------
DROP TABLE IF EXISTS `mydb`.`room` ;

CREATE TABLE IF NOT EXISTS `mydb`.`room` (
  `room_number` INT NOT NULL,
  `is_available` TINYINT NULL,
  `room_type` INT NULL,
  `reservation_check_in_date` DATE NOT NULL,
  `room_infomation_room_type` INT NOT NULL,
  PRIMARY KEY (`room_number`),
  INDEX `fk_room_reservation1_idx` (`reservation_check_in_date` ASC),
  INDEX `fk_room_room_infomation1_idx` (`room_infomation_room_type` ASC),
  CONSTRAINT `fk_room_reservation1`
    FOREIGN KEY (`reservation_check_in_date`)
    REFERENCES `mydb`.`reservation` (`check_in_date`)
    ON DELETE NO ACTION
    ON UPDATE NO ACTION,
  CONSTRAINT `fk_room_room_infomation1`
    FOREIGN KEY (`room_infomation_room_type`)
    REFERENCES `mydb`.`room_infomation` (`room_type`)
    ON DELETE NO ACTION
    ON UPDATE NO ACTION)
ENGINE = InnoDB;


-- -----------------------------------------------------
-- Table `mydb`.`creditcard`
-- -----------------------------------------------------
DROP TABLE IF EXISTS `mydb`.`creditcard` ;

CREATE TABLE IF NOT EXISTS `mydb`.`creditcard` (
  `creditcard_id` INT NOT NULL,
  `traveller_name` VARCHAR(45) NOT NULL,
  PRIMARY KEY (`creditcard_id`, `traveller_name`),
  INDEX `fk_creditcard_traveller1_idx` (`traveller_name` ASC),
  CONSTRAINT `fk_creditcard_traveller1`
    FOREIGN KEY (`traveller_name`)
    REFERENCES `mydb`.`traveller` (`name`)
    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;

數(shù)據(jù)庫(kù)邏輯模型 與 領(lǐng)域模型 的異同 ：
異：領(lǐng)域模型是為了分析業(yè)務(wù)而建立的，它是對(duì)業(yè)務(wù)的抽象；數(shù)據(jù)庫(kù)邏輯模型是為了軟件開(kāi)發(fā)而建立的，它是對(duì)數(shù)據(jù)庫(kù)存儲(chǔ)方式的描述。
同：它們都是對(duì)業(yè)務(wù)進(jìn)行分析以后進(jìn)行的可視化建模，都形象地展示了各個(gè)實(shí)體的名稱、屬性以及不同實(shí)體之間的聯(lián)系。