Introduction

PowerDesigner was initially developed by Xiao Yun Wang at SDP Technologies. PowerDesigner is Sybase's enterprise modeling and design solution, adopting a model driven approach that combines business and IT to help deploy effective enterprise architecture and provide powerful analysis and design techniques for R&D lifecycle management. PowerDesigner ingeniously integrates multiple standard data modeling technologies (UML, business process modeling, and market leading data modeling) and integrates them with. NET, WorkSpace, PowerBuilder, Java ™、 Integrate mainstream development platforms such as Eclipse to provide business analysis and standardized database design solutions for traditional software development cycle management. In addition, it supports over 60 relational database management systems (RDBMS)/versions. PowerDesigner runs on the Microsoft Windows platform and provides an Eclipse plugin.

Information Overview

Power Designer is Sybase's CASE toolset, which allows for easy analysis and design of management information systems. It covers almost the entire process of database model design. Power Designer can be used to create data flow charts, conceptual data models, physical data models, structural models for data warehouses, and control team design models. It can be combined with many popular software development tools, such as PowerBuilder, Delphi, VB, etc., to shorten development time and optimize system design.

Power Designer is a powerful software that allows for database design and is a commonly used database modeling tool for developers. It can be used to design databases from two levels: conceptual data model and physical data model. Here, the conceptual data model describes entity definitions and entity relationship definitions that are independent of database management systems (DBMS); The physical data model is a concretization of the target database management system based on the conceptual data model.

Function

Data Architect: This is a powerful database design tool that allows you to create a "conceptual data model" - CDM (Conceptual Data Model) for an information system using entity relationship diagrams. And it can generate a "Physical Data Model" - PDM (Physical Data Model) based on a specific database management system according to CDM. PDM can also be optimized to generate SQL statements that create databases for specific DBMS and can be stored in file format for running these SQL statements to create databases at other times. In addition, Data Architect can also reverse generate PDM, CDM, and SQL scripts for creating databases based on existing databases.

Process Analyst: This section is used to create functional models and data flow diagrams, and to create "processing hierarchical relationships".

App Modeler: Create an application model for client/server applications.

ODBC Administrator: This section is used to manage various data sources of the system.

4 models

Conceptual Data Model

CDM represents the entire logical structure of a database, independent of any software or data storage structure. A conceptual model often includes data objects that are still not implemented in physical databases. It provides a formal representation of data for running plans or business activities.

The conceptual data model is the end-user's perspective on data storage, reflecting the user's comprehensive information needs.

Do not consider physical implementation details, only consider the relationships between entities.

CDM is a tool suitable for the system analysis phase.

Physical Data Model

PDM describes the physical implementation of the database. With PDM, you consider the details of real-world physical implementations. It enters two software or data storage structures in the account. You can modify PDM to suit your performance or physical constraints.

The main purpose is to generate specific DBMS scripts from the real-world models established in CDM, generate a storage structure for storing information in the database, and ensure the integrity and consistency of the data in the database.

PDM is a tool suitable for the system design phase.

Object oriented model

Object Oriented Model (OOM) An OOM consists of a series of packages, classes, interfaces, and their relationships. These objects together form the class structure of the logical design view of all (or part of) a software system. An OOM is essentially a static conceptual model of a software system.

You use the Power Designer object-oriented model to establish an object-oriented model (OOM) You can create an OOM for purely object-oriented modeling purposes, generate Java files or PowerBuilder files, or you can use a Physical Data Model (PDM) object from OOM to represent relational database design analysis.

Business Program Model

Business Process Model (BPM) describes the various internal tasks and processes of a business, and how customers influence each other through these tasks and processes. BPM is a conceptual model of business logic and rules from the perspective of business partners, using a diagram to describe the interactions between programs, processes, information, and collaboration protocols.