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Erd diagram

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im new to this stuff so i was wondering if i did this right
i upload a document on what i have done
Pick and Shovel Construction Company is a multi-state building contractor specializing in medium priced town homes. Assume that Pick and Shovel’s main entities are its customers, employees, projects and equipment. A customer can hire the company for more than one project, and employees sometimes work on more than one project at a time. Equipment, however, is assigned to only one project at a time. Draw an ERD showing those entities.

Attachments ERD.doc (28KB)
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project---equipment is not correct

project---employee is not correct.

Have another think about these.

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