Read the following business requirements closely to determine the entities and relationships needed to fulfill the requirements. The nouns in the paragraph will tell you the entities that will be needed. The verbs in the paragraph will help you determine the relationships between the entities.

 

STEP 2: Using Visio

• Run Visio 2010 either via Citrix or on your workstation.
• Click on the Software and Database Template group in the main window.
• Double-click on the Database Model Diagram Template to open a new file.
• Save the file with a name containing Lab2_, your first initial, and your last name as the file name (e.g., Lab2_JSmith.vsd). You will need to click the Computer icon in the Save As window to see the different drives. Be sure to save the file to a local drive so it will be on your workstation.

 

STEP 3: Determine Database Entities

Add an entity for each entity that you identified in the requirements.

• Drag the Entity icon onto the drawing area in Visio.
• In the Database Properties window, add a physical name to identify it.

 

STEP 4: Entity Attributes

For each entity, create a list of attributes that you think would be useful to describe the entity.

• Select an entity in the drawing area of Visio.
• In the Database Properties window, select the Columns category.
• Use the table to add your attributes to the selected entities.
• Select one of the attributes to be the primary key (PK).

 

STEP 5: Crow’s Feet Notation

Set the diagram to use crow's feet notation.

• On the Database tab, in the Manage group, click Display Options.
• In the Database Document Option dialog, select the Relationship tab.
• Select the Crow's Feet check box, and then click OK.

 

STEP 6: Entity Relationships

Draw relationships between your entities.

• Drag the Relationship icon onto a blank part of the drawing area.
• Connect the two ends to each of the two entities in the relationship. The parent entity must have a PK defined. The entity will be outlined in bold red lines when it connects to one end of the relationship.

 

STEP 7: Relationship Cardinality

Set the cardinality of your relationships.

• Select a relationship line in the drawing area that is connecting two entities.
• In the Database Properties window, select the Miscellaneous category.
• Select the cardinality for the selected relationship.

 

STEP 8: Save and Upload to Dropbox

When you are done, save the file on your local hard drive and upload it to the Week 3 Course Dropbox. Your file should have the following filename format: Lab2_FirstInitialLastName.vsd.

 

Rubric

Points will be awarded according to the following rubrics.

• 10 Points: Visio drawing: E-R model is provided as a Visio diagram.
• 10 Points: Entities: A minimum of four entities is present.
• 10 Points: Attributes: There are more than two attributes per entity; in most cases, there should be several.
• 10 Points: Relationships: A minimum of three relationships is present.
• 10 Points: Cardinality is specified on each relationship with crow's foot notation.

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