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3.ED Diagramming Conv

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  1 Copyright © 2013, Oracle and/or its affiliates. All rights reserved.   Database Design ER Diagramming Conventions  2 Copyright © 2013, Oracle and/or its affiliates. All rights reserved. Objectives This lesson covers the following objectives: ã Construct ER diagram components that represent entities and attributes according to diagramming conventions ER Diagramming Conventions  3 Copyright © 2013, Oracle and/or its affiliates. All rights reserved. Purpose People speak different languages throughout the world, but some signs are understood globally. Guess the meaning of these signs. ER Diagramming Conventions International Signs 1 2 3 4 5 6 7  4 Copyright © 2013, Oracle and/or its affiliates. All rights reserved. Purpose (cont.) How well did you do? Did you guess the meaning of most signs? ER Diagramming Conventions International Signs 1 2 3 4 5 6 7 1.Crosswind 2.Roundabout 3.No entry for vehicles carrying more than a certain quantity of explosives or readily inflammable substances 4.Lane for slow vehicles 5.Stop in Brazil 6.Low clearance 7.Mr. Yuk Key:
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