Power Designer Sybase

Introduction SAP Sybase PowerDesigner is the industry-leading business process / data modeling software and metadata management solution for data architecture, information architecture and enterprise architecture. It is a CASE tool used for designing different models It stores data about data

Four D’s of data The meta data is used for: Discover – What is known about data Document – define data models Design/describe – may use for data movements and data descriptions Do – finally creates the real artifacts from the model

Useful for Data Modeling Information Architecture Enterprise Architecture

Structured as A global generator

Why not use any drawing tool Drawing tools communicate ideas visually and may also capture some additional information about some of the objects represented Each diagram stands alone: If any process appears at various places, there is no connection between those symbols and there is no linkages or connection with the actual existence of these processes i.e. there is no way of managing metadata

Power Designer Components There are various components: Models Diagrams Objects Sub-Objects Links Examples etc.

Symbols The symbols are actually the objects The links between the objects are also the symbols For some things, there are no symbols, may not be used

Used For Create and manage artifacts like XML and DB Refactoring Linkings Collaborations Communications Documentations etc.

Data Modelling Sybase is used for defining CDM (Conceptual Data Model) The CDM is independent of any underlined database All the design issues of the data are defined here Through the simple procedures, the CDM may be transformed into PDM (Physical Data Model)

Power Designer Tools

Create CDM Steps are: DO NOT DEFINE THE FOREIGN KEYS IN THE TABLES Start PowerDesigner Use the tools from the tool palette Define entities and relationships Save it as .CDM DO NOT DEFINE THE FOREIGN KEYS IN THE TABLES From CDM, logical data model may be created