1、 领域建模
- a. 阅读 Asg_RH 文档,按用例构建领域模型。
- 按 Task2 要求,请使用工具 UMLet,截图格式务必是 png 并控制尺寸
- 说明:请不要受 PCMEF 层次结构影响。你需要识别实体(E)和 中介实体(M,也称状态实体)
- 在单页面应用(如 vue)中,E 一般与数据库构建有关, M 一般与 store 模式 有关
- 在 java web 应用中,E 一般与数据库构建有关, M 一般与 session 有关
- b. 数据库建模(E-R 模型)
- 按 Task 3 要求,给出系统的 E-R 模型(数据逻辑模型)
- 建模工具 PowerDesigner(简称PD) 或开源工具 OpenSystemArchitect
- 不负责的链接 http://www.cnblogs.com/mcgrady/archive/2013/05/25/3098588.html
- 导出 Mysql 物理数据库的脚本
- 简单叙说 数据库逻辑模型 与 领域模型 的异同
领域模型
系统的 E-R 模型
Mysql 物理数据库的脚本:
-- MySQL Script generated by MySQL Workbench
-- 04/28/18 19:18:29
-- 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`.`credit cards`
-- -----------------------------------------------------
CREATE TABLE IF NOT EXISTS `mydb`.`credit cards` (
`number` VARCHAR(45) NOT NULL,
`type` VARCHAR(45) NULL,
`security code` VARCHAR(5) NULL,
PRIMARY KEY (`number`))
ENGINE = InnoDB;
-- -----------------------------------------------------
-- Table `mydb`.`customer`
-- -----------------------------------------------------
CREATE TABLE IF NOT EXISTS `mydb`.`customer` (
`costomer_id` VARCHAR(45) NOT NULL,
`name` VARCHAR(45) NULL,
PRIMARY KEY (`costomer_id`))
ENGINE = InnoDB;
-- -----------------------------------------------------
-- Table `mydb`.`location`
-- -----------------------------------------------------
CREATE TABLE IF NOT EXISTS `mydb`.`location` (
`code` DECIMAL(45) NOT NULL,
`name` VARCHAR(45) NULL,
PRIMARY KEY (`code`))
ENGINE = InnoDB;
-- -----------------------------------------------------
-- Table `mydb`.`hotel`
-- -----------------------------------------------------
CREATE TABLE IF NOT EXISTS `mydb`.`hotel` (
`address` VARCHAR(45) NOT NULL,
`location_code` DECIMAL(45) NOT NULL,
PRIMARY KEY (`address`, `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`.`reservations`
-- -----------------------------------------------------
CREATE TABLE IF NOT EXISTS `mydb`.`reservations` (
`reservation_id` VARCHAR(45) NOT NULL,
`hotel name` VARCHAR(45) NULL,
`city name` VARCHAR(45) NULL,
`check in date` DATE NULL,
`check out date` DATE NULL,
`numbers of room` INT NULL,
`price` FLOAT NULL,
`costomer name` VARCHAR(45) NULL,
`isSmoking` TINYINT(1) NULL,
`credit cards_number` VARCHAR(45) NOT NULL,
`customer_costomer_id` VARCHAR(45) NOT NULL,
`hotel_address` VARCHAR(45) NOT NULL,
PRIMARY KEY (`reservation_id`, `credit cards_number`, `customer_costomer_id`, `hotel_address`),
INDEX `fk_reservations_credit cards_idx` (`credit cards_number` ASC),
INDEX `fk_reservations_customer1_idx` (`customer_costomer_id` ASC),
INDEX `fk_reservations_hotel1_idx` (`hotel_address` ASC),
CONSTRAINT `fk_reservations_credit cards`
FOREIGN KEY (`credit cards_number`)
REFERENCES `mydb`.`credit cards` (`number`)
ON DELETE NO ACTION
ON UPDATE NO ACTION,
CONSTRAINT `fk_reservations_customer1`
FOREIGN KEY (`customer_costomer_id`)
REFERENCES `mydb`.`customer` (`costomer_id`)
ON DELETE NO ACTION
ON UPDATE NO ACTION,
CONSTRAINT `fk_reservations_hotel1`
FOREIGN KEY (`hotel_address`)
REFERENCES `mydb`.`hotel` (`address`)
ON DELETE NO ACTION
ON UPDATE NO ACTION)
ENGINE = InnoDB;
-- -----------------------------------------------------
-- Table `mydb`.`request`
-- -----------------------------------------------------
CREATE TABLE IF NOT EXISTS `mydb`.`request` (
`request_id` INT NOT NULL,
`destination name` VARCHAR(45) NULL,
`check in date` DATE NULL,
`number of nights` INT NULL,
`customer_costomer_id` VARCHAR(45) NOT NULL,
PRIMARY KEY (`request_id`, `customer_costomer_id`),
INDEX `fk_request_customer1_idx` (`customer_costomer_id` ASC),
CONSTRAINT `fk_request_customer1`
FOREIGN KEY (`customer_costomer_id`)
REFERENCES `mydb`.`customer` (`costomer_id`)
ON DELETE NO ACTION
ON UPDATE NO ACTION)
ENGINE = InnoDB;
-- -----------------------------------------------------
-- Table `mydb`.`room-desc`
-- -----------------------------------------------------
CREATE TABLE IF NOT EXISTS `mydb`.`room-desc` (
`idroom_desc_id` INT NOT NULL,
`price` FLOAT NULL,
PRIMARY KEY (`idroom_desc_id`))
ENGINE = InnoDB;
-- -----------------------------------------------------
-- Table `mydb`.`room`
-- -----------------------------------------------------
CREATE TABLE IF NOT EXISTS `mydb`.`room` (
`room_id` VARCHAR(45) NULL,
`type` VARCHAR(45) NOT NULL,
`hotel_address` VARCHAR(45) NOT NULL,
`room-desc_idroom_desc_id` INT NOT NULL,
PRIMARY KEY (`type`, `hotel_address`, `room-desc_idroom_desc_id`),
INDEX `fk_room_hotel1_idx` (`hotel_address` ASC),
INDEX `fk_room_room-desc1_idx` (`room-desc_idroom_desc_id` ASC),
CONSTRAINT `fk_room_hotel1`
FOREIGN KEY (`hotel_address`)
REFERENCES `mydb`.`hotel` (`address`)
ON DELETE NO ACTION
ON UPDATE NO ACTION,
CONSTRAINT `fk_room_room-desc1`
FOREIGN KEY (`room-desc_idroom_desc_id`)
REFERENCES `mydb`.`room-desc` (`idroom_desc_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;
简单叙说 数据库逻辑模型 与 领域模型 的异同
领域模型不会排除需求中没有明确要求记录其相关信息的类,也不会排除没有属性的概念类,而数据库逻辑模型则排除。