Creating the entity-relationship (ER) model by visually representing the structure of some database, mainly the business one, which data equates to its entities (or objects) that are connected by relationships showing requirements and dependencies, you need proper software to provide you with the symbols necessary in this case. ConceptDraw PRO vector drawing and diagramming software allows you to make any of needed models, plans, charts, diagrams with help of our application STORE where lots of layouts can be found as well as samples and templates of the flowcharts depending on the business sphere you work in and requirements you have. You can also find examples of ERD in Solutions here on this site in order to make it look really smart. Making entity-relationship diagram based on the Chen ERD notation is simple now having ConceptDraw PRO and you can check it yourself once you download and use it. Advice your colleagues and your friends, business partners, in order to simplify their lives as well as yours making the charts looking professional and simply sophisticated. Because we guarantee the quality of our great software developed to please everyone who needs this product in their work.