ERD Symbols and Meanings

Crow's foot notation is used in Barker's Notation, Structured Systems Analysis and Design Method (SSADM) and information engineering. Crow's foot diagrams represent entities as boxes, and relationships as lines between the boxes. Different shapes at the ends of these lines represent the cardinality of the relationship.
The Chen's ERD notation is still used and is considered to present a more detailed way of representing entities and relationships.
To create an ERD, software engineers mainly turn to dedicated drawing software, which contain the full notation resources for their specific database design - ERD symbols and meanings. CS Odessa has released an all-inclusive Entity-Relationship Diagram (ERD) solution for their powerful drawing program, ConceptDraw DIAGRAM.

Geo Map - Africa - Congo DRC

The Democratic Republic of the Congo, sometimes referred to as DR Congo, Congo-Kinshasa, DROC, or RDC, is a country located in the African Great Lakes region of Central Africa.
The vector stencils library Congo DRC contains contours for ConceptDraw DIAGRAM diagramming and vector drawing software. This library is contained in the Continent Maps solution from Maps area of ConceptDraw Solution Park.

Geo Map - Africa - Cameroon

Cameroon, officially the Republic of Cameroon, is a country in the west Central Africa region.
The vector stencils library Cameroon contains contours for ConceptDraw DIAGRAM diagramming and vector drawing software. This library is contained in the Continent Maps solution from Maps area of ConceptDraw Solution Park.

Geo Map - Africa - Congo

The Republic of the Congo, sometimes referred to as Congo Republic or Congo-Brazzaville, is a country located in Central Africa.
The vector stencils library Congo contains contours for ConceptDraw DIAGRAM diagramming and vector drawing software. This library is contained in the Continent Maps solution from Maps area of ConceptDraw Solution Park.

Geo Map - Africa - Central African Republic

The Central African Republic is a landlocked country in Central Africa. It is bordered by Chad in the north, Sudan in the northeast, South Sudan in the east, the Democratic Republic of the Congo and the Republic of the Congo in the south and Cameroon in the west.
The vector stencils library Central African Republic contains contours for ConceptDraw DIAGRAM diagramming and vector drawing software. This library is contained in the Continent Maps solution from Maps area of ConceptDraw Solution Park.