The data structure is the foundation of the data model, and data operations and constraints are built on the data structure.
The content described by the data model includes three parts: data structure, data operation, and data constraint:ġ) Data structure: The data structure in the data model mainly describes the type, content, nature of the data, and the connection between the data. Data Model (DataModel) is an abstraction of data characteristics and a framework for teaching database management. Model is an abstraction of the real world. PowerDesigner15 model description 3.1 Concept of data modelĭata is a symbolic record describing things. In the same year, Sybase bought Powersoft, S-Designor and AMC*Designor changed their names to PowerDesigner and PowerAMC.įrom 1995 to now, he has been responsible for the design and development of PowerDesigner.ģ. Powersoft bought our SDP company in 1995. It began to be sold in the United States in 1991. Later, we continued to develop and improve this product, and expanded the market to the United States.
#WHICH DBMS DOES POWERDESIGNER SUPPORT SOFTWARE#
I wondered if I could develop such a software myself, so I started to develop it in 1988 and developed the first version in 1989, called AMC*Designor, which was sold in France and sold very well.Īll the software of the company at that time used this tool developed by PD, and it has been used until now. I found a good modeling design tool, but there was none at that time. At that time, he was engaged in software development and design. After graduating from university in 1986, he worked in the SDP software company in Paris. Wang Xiaoyun went to Peking University in 1978, only three months. You can use tools to generate corresponding XML files, or use XML files to generate related models. This part is used to manage various data sources of the system. This part is used to create functional models and data flow diagrams and create "processing hierarchical relationships".Ĭreate application models for client/server applications. In addition, DataArchitect can also generate PDM, CDM and SQL scripts to create the database in reverse based on the existing database. PDM can also be optimized to generate SQL statements to create a database for a specific DBMS and can be stored in file format to run these SQL statements to create a database at other times. And according to CDM, a "physical data model"-PDM (Physical Data Model) based on a particular database management system (for example: Sybase System 11) can be generated. Using DataArchitect, entity-relation diagrams can be used to create a "conceptual data model"-CDM (Conceptual Data Model) for an information system. PowerDesigner mainly includes the following functional parts: (6) PowerDesigner Viewer: used to access the model information of the entire enterprise in a read-only and graphical manner.
(5) PowerDesigner Warehouse Architect: for the design and implementation of data warehouse. (4) PowerDesigner Meta Works: Used for advanced team development, information sharing and model management. (3) PowerDesigner App Modeler: used for physical modeling and the generation of application objects and data-sensitive components. (2) PowerDesigner Data Architect: used for two-tier, interactive database design and construction. (1) PowerDesigner Process Analyst: used for data discovery. PowerDesigner contains six tightly integrated modules, allowing individuals and development team members to best meet their needs in a cost-effective manner. The models and applications produced by PowerDesigner can continue to grow, adapt and change as your organization changes. PowerDesigner is a powerful and easy-to-use tool set that provides a complex interactive environment that supports all phases of the development life cycle, from process modeling to object and component generation. It is the industry's first modeling software that provides business analysis, database design and application development at the same time. It can not only be used in different stages of system design and development (that is, business analysis, conceptual model design, logical model design, physical model design, and object-oriented development stages), but also can meet the needs of management, system design, development and other related personnel. PowerDesigner 15 is a CASE (Computer Aided Software Engineering) tool launched by Sybase that integrates enterprise architecture analysis, UML (Unified Modeling Language) and data modeling.
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