conceptual data model in visio

We have not yet understood the three concepts of databases. Today, I am here to answer your questions, improve them together, and combine them with our daily understanding. Conceptual Model Conceptual ModelAfter understanding the user's needs and work conditions in the user's business field, the author analyzes and summarizes some concepts used to describe

, contact person, contact phone, address and other attributes; "Product" Information basically includes: name, type, specifications, unit price and other attributes; "Order" information basically includes: Date and time attributes. and "order" to the "customer", "salesman" and "product" details are associated. The system needs to establish several data tables: Salesman information table, Customer Information table, Commodity information table, order f

Using Visio 2000 Enterprise Edition to model applications Ken Spencer P Roper application design is a must in any project. without this step, it is almost guaranteed that problems will occur. this is especially true in the component world. this month I am going to take a look at Microso

To solve the actual problem on the computer, we need to abstract the entity model from the actual problem, and then map the entity model to the database relational table. For example, when we are thinking about selecting courses for students, the entity model is "student" and "course ". In this case, we can use powerdesigner to establish a

2016-04-09 21:10:24 The original is protected by copyright, and is strictly forbidden to reprint.Please do not use for commercial purposes, support the genuine, we are doing software, know how to develop a set of software is not easy AH!Today I saw a very interesting and useful Assistant development tool that is easy to use and makes it easy to create a database and a physical model of designing a database.Let the original logic high, abstract bad des

In HR, the personnel organization structure is usually displayed in the form of Treeview. It gives people the feeling that the structure is not intuitive, the image is not displayed, and the size is relatively small, except for the name and cascade relationship, there is no other information. If you can export it to a Visio model diagram, that would be great? Next we will talk about how to export the organi

Tags: des style HTTP color OS Java strong File Powerdesigner Conceptual Model Description Environment Powerdesigner 12.5 Windows XP Chinese Version I. Importance of conceptual models Powerdeigner is the most powerful and excellent data modeling tool and is the greatest product of Sybase. At present, the late

Objectives: This document describes the basic concepts of Data Model CDM in powerdesigner. 1. Conceptual Data Model Overview Data models are the abstraction of data features in the real

The database design model can be divided into two types: conceptual model design and physical model design. The conceptual model mainly reflects the business relationship in the real world, that is, our commonly used entity relati

I have learned some UML knowledge, but I have never had time to put it into practice. During this time, I wrote a simple inventoryProgramI just wanted to put it into practice. I first created a database model diagram Using Visio. It was a little more intuitive to create a database in Visio and it was quickly completed. The operation was quite convenient, then, cr

Goal:This paper mainly introduces the basic concept of CDM in PowerDesigner conceptual data model.I. Overview of the conceptual data modelThe data model is the abstraction of data featu

Many Internet products have a commonality, is its business core in the database, a variety of clients including Web pages, desktop, mobile app, essentially just the data in the database, in accordance with a certain structure and organization presented in front of users.Therefore, the design of database model is very important for the initial development of an Internet product. and the database

Visio 2010 Reverse-Engineering The MySQL database build ER Database model diagram1, first need to download from MySQL for database link drive ODBCYes: http://dev.mysql.com/downloads/connector/odbc/Download it according to the appropriate version and install it locally after downloading2, start Visio2010 (other version of self-study)When creating a new document, select "Software and Database" in the template