DEVRY BIS245 iLab 5a of 7 AND iLab 5B of 7

A. Lab # : BSBA BIS245A-5A

B. Lab 5A of 7 :Database design using Visio, and based on data requirementsand business rules focusing on normalizing data to third normal form.

C. Lab Overview–Scenario/Summary:

TCO(s):

2. Given a situation containing entities, business rules, and data requirements, create the conceptual model of the database using a database modeling tool.

Scenario:

You have been asked to create a database model using the MS Visio Database Model Diagram Template. The purpose of this lab is to provide experience normalizing the database to third normal form based on limited instructions, data requirements, and associated business rules.

Upon completing this lab, you will be able to

1. create a new Visio file for database design; and

2. using the data requirements and the business rules provided, develop a conceptual model (ERD), including attribute data types and required field lengths.

D. Deliverables

Section	Deliverable	Points
Step 1	YourName_Lab5A_ERMatrix.docx
Step 3	YourNameLab5A.vsd (Visio Diagram)
E. Lab Steps

Preparation

1. Get the Lab5A_ERMatrix.docx document from Doc Sharing:

a. Download the Lab5A_ERMatrix document file from your course Doc Sharing panel (Labs view), and Save the file to your local drive.

2. Using Citrix for MS Visio and/or MS Access

a. If you are using the Citrix remote lab, follow the login instructions located in the iLab tab in Course Home.

3. Start MS Visio

a. Open Microsoft Office, Visio application, or

b. if you are using Citrix, click on Microsoft Office Applications folder to start Visio.

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Lab

Step 1:Identify the entities and relationships.

a. Over the past four weeks, you have created ERDs based on information provided. This week, you will complete the ERD being sure to normalize it to 3NF (third normal form). Normalization is the systematic application of rules designed to eliminate redundancy from the database. Data in previous weeks was, to some extent, normalized for you. This week, it is not. An abbreviated list of the data requirements follows.

College SchedulingData Requirements

Student ID

Student First Name

Student Last Name

Course Code

Course Name

Course Description

Course Credit Hours

Course Time

Course Days

Instructor ID

Instructor First Name

Instructor Last Name

Room Number

Room Capacity

b. Open the Word file in the Week 5 Lab Materials, Lab5A_ERMatrix.docx

c. Save the Word file as YourName_Lab5A_ERMatrix.

d. An ER Matrix helps define both the entities and the relationships between the entities. Using the partially completed ER Matrix below as a guide, complete the matrix.

Hint: You should end up with four entities.

1. List each entity both across and down.

2. Determine whether a relationship exists between entities and define that relationship with a verb phrase. (NOTE: The entity with the greatest number of related entities is usually the center of the ER diagram.)

3. Identify minimum (Optional or Mandatory) and maximum (only one, or one or more).

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			Student	Course
		Student	none	Enrolls in;
				Mandatory
				One or
		Course		more
		Is taken by:	none
			Optional
			One or
			more

e. Save the completed matrix to submit as part of your lab.

Step 2:Create the initial ERD based on the matrix.

a. Open a new blank Database Model Diagram in Visio. If you need assitance with this, refer to the Week 1 Lab Instructions. Be sure that all options are set consistent to those used in previous weeks so that you generate your model in Crow’s Foot notation.

b. One of the issues in denormalized data is that it can result in many-to-many relationships that are not compatible with the relational database. Visio does not allow creation of a many-to-many relationship because of this incompatibility. Therefore, for any many-to-many relationships in your data, you will need to create two one-to-many relationships. See the example below:

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c. Based on the information from Step 1, create the initial ERD for the College Scheduling database including the many-to-many relationships. If you need assistance to create the entities, refer to labs from Weeks 1 and 2.

d. Assign the primary keys and attributes from the data requirements to the proper entities.

e. Save the file as YourName_Lab5A.vsd.

Step 3:Normalize the database

a. While the initial ERD is accurate, if you design a database without deviating from it, you will encounter problems. For example, a course is offered many times. If you use the course code, for example BIS245, as the primary key, you will only be able to list the course once. There are three possible solutions.

1. Assign another primary key, such as an auto-number field, so that the course can be listed multiple times. However, this is not acceptable because it introduces redundancy rather than reducing it.

2. Use a composite primary key consisting of the Course Code and the Section code. If you create a unique section code (EXAMPLE: YearTerm_Section or 2010SpringA_A), then you can list the course repeatedly. Again, this introduces redundancy, and is not an acceptable solution.

3. Split the table to create two tables. To stay consistent with DeVry terminology, create a second Section table. To ensure that a course is not entered twice, you might modify the Section code to include the course: BIS245_2010SpringA_A. By consistently using this format, you should not be able to duplicate the section, and can avoid a complicated composite key. However, as the Section table will serve as an associative entity, it is acceptable to borrow the primary keys of the parent tables.

b. Open the Visio file from Step 2, and add a new page. Change the page tab to read Revised. Revise the initial ERD based on the following information.

1. A Course may exist without being offered. It exists in the catalog. Courses are scheduled for a term and given a section. It is the schedule course (Section) that students enroll in, that are scheduled in rooms and assigned instructors.

2. A Student can exist without being enrolled in a course.

3. An Instructor can exist without being assigned to teach a course.

4. A Room can exist without being scheduled for a course.

c. Save the file with your revised ERD.

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Lab 5A Final Deliverables

a. YourName_Lab5A_ERMatrix.docx (Word Document) from Lab 5A Step 1

b. YourName_Lab5A.vsd (Visio Diagram) from Lab 5A Step 3.

Submit these files to the Week 5 iLab Dropbox.

END OF LAB

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A. Lab # : BSBA BIS245A-5B

B. Lab 5B of 7:Completing Forms

C. Lab Overview–Scenario/Summary

TCO(s):

5. Given a physical database containing tables and relationships, create forms which demonstrate effective user-interface design and allow for efficient entry and retrieval of data.

Scenario/Summary

The lab begins with creating a form in Access using the Form Wizard. After the form is created, the user can use Themes to change the appearance of the form. The second part of the lab uses Form Design to create a form. Finally, the form will be customized.

Upon completing this lab, you should be able to

• create a form using the Form Tool;

• create a form using Form Design; and

• create a form using the Form Wizard.

D. Deliverables

Submit the MS Access Database file that contains the forms created in this lab.

Step	Deliverable	Points
1	Form 1	– Form Tool – step-by-step	5
2	Form 2	– Form Design – step-by-step	5
3	Form 3	– Form Wizard—Employee/Customers Multi-Table Form	5
	– step-by-step
4	Form 4	– Suppliers and Products Multi-Table Form	10

E. Lab Steps

Preparation

1. Get the Database from Doc Sharing

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a. Download the Lab5_Start.accdb Northwind database file from your course Doc Sharing panel (Labs view), and Save the file to your local drive.

2. Using Citrix for MS Visio and/or MS Access

a. If you are using the Citrix remote lab, follow the login instructions located in the iLab tab in Course Home.

b. You will have to upload the Lab5_Start.accdb file to your Citrix folder. Follow the instructions located on the iLab tab in Course Home.

3. Start MS Access

a. If you are using Citrix, click on Microsoft Office Applications folder.

b. If you are using Visio on a local computer, select Microsoft Office from your Program Menu.

Lab

Step 1:Using the Form Tool

Select Employees table as in the following figure. You will see the Employees table highlighted.

Click the Create tab, and then click the Form tool.

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After clicking the Form button, a new form is created by Access.

The appearance of the form can be easily modified using the Themes option on the Design ribbon. As you move your cursor over the various themes, the form will adjust to preview how the modified form would look. You may select any theme for your form.

Click the Save button to save the form. Name it Lab5_Form1, and then close the form.

Step 2:Using the Form Design

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Click the Create tab; then, click on Form Design. (Make sure that you do not have any of the tables selected in the Tables list on the left side of the screen.)

After clicking the Form Design, a new form will be shown as the following

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Click the Add Existing Fields option, and then click Show All Tables to show all the tables in the database. Drag and drop fields from the Customer table to the form. You can also double click the fields that you want to add. Select a number of fields from the Customers table. Adjust the location of the fields. Then, click the Form option in the View list to see the form. The View button is highlighted at the right.

After viewing the form, click the View button again, and select Design View to go back to form design. Save the form as Lab5_Form2.

Step 3:Creating Multi-Table Forms

You can incorporate data from several tables in a single form. In this step, you will create a form that displays data concerning one employee. The form will also

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display data concerning the many customers that your employees serve. This type of relationship between employees and customers is called one-to-many relationships (one employee serving many customers). In this relationship, the Employees table is the “one” table and the Customers table is the “many” table.

To create a multi-table form using the Form Wizard

• click the Create tab, then select the Form Wizard; and

• make sure that Customers table is selected in the Table/Queries box.

• Select CustomerID, CompanyName, ContactName, ContactTitle, Address, City, Region, PostalCode, Country, and Phone Fields from Customers table.

• Back in the Tables/Queries, click on the down arrow and select Employees table. See illustration on next page.

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• Select EmployeeID, LastName, FirstName, Photo, and ReportsTo from that table, then click Next button.

• Make sure that by Employees is selected in “How do you want to view your data?”

• You also have the option to select Form with subform(s) or Linked forms. Select Form with subform(s), then click Next.

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• In the next screen, you have the option of selecting the layout of your subform. Select Tabular, and then click Next.

• Assign a title to your form (Lab5_Form3) and subform (Lab5_Subform3), and click finish.

• Click on View, and then view the form in Form View.

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Before closing the form, go to Design View, and change the Caption property for the form to Employees. (See below.) Return to Form View before saving your form.

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In Form View your form should display nine records, showing employees and the customers that they serve. These records can be cycled through on using the navigation options available on the lower left of the application screen.

You will be prompted to save changes when closing the form. Say Yes to save changes at the prompt, and close the form.

Step 4:Create a Multi-Table Form

Following instructions provided in Step 3, create a multi-table form, showing what products are supplied by which supplier.

Requirements: There is ONE Supplier for MANY Products. You must display the following fields: SupplierID, CompanyName, ContactName, ContactTitle, Address, City, Region, PostalCode, Country, and Phone fields along with ProductID, ProductName, and CategoryID.

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Your form should look like the following

There should be 29 records in your suppliers, each providing numerous products.

Save your form as Lab5_form4, and the Subform as Lab5_Subform4.

Step 5:Submit Deliverables

Save your MS Access Lab5_Start.accdb file as YourName_Lab5_ Final.accdb

Submit the Access file created during this assignment to the Dropbox located on the silver tab at the top of this page. (See Syllabus/”Due Dates for Assignments & Exams” for due dates.)

End of Lab 5B

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