DLOB M2: Conceptual Data Modelling · Attributes

Create an entity set named "Phone" with attribute "location". Connect attribute "phone-number" with "Phone". Create a relationship set named "EmpPhn". Connect it with the two entity sets.

  1. Select the "Entity Set" tool.Click into an empty area in the diagram. Double click at the name of the created entity set to edit it. Enter the name "Phone".
  2. Create a new attribute named "location" using the "Attribute" tool. Proceed as described in step 1.
  3. Use the "Connection" tool to connect the attribute "location" with the entity set "Phone".
  4. Delete the connection between "phone-number" and "Employee". Create e new connection between "phone-number" and "Phone" using the "Connection" tool.
  5. Select the "Relationship Set" tool. Click into an empty area on the diagram. Double click at the name of the created relationship set to edit it. enter the name "EmpPhn".
  6. Use the "Connection" tool twice to connect "EmpPhn" with "Employee" and with "Phone".

Click at "Compare with Solution" to see whether your diagram is correct, and to get a description of the solution.

Source: http://www.cs.sfu.ca/CC/354/zaiane/material/notes/Chapter2/node4.html

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