Texas Cars LLCProject Sponsor: Bob SmithCEO of Texas Cars LLCPhone: 281 990-9725Fax: 281 555-5555Email: bob.smith@texascars.com

Presented By Arlo Carreon

Elvis CandelariaNupur Agarwal

Swetha Srinivasan

Table of ContentsI. Business BackgroundII. Business RequirementsIII.DFDIV. Structure ChartV. Logical DesignVI. Physical DesignVII.ER Diagram in AccessVIII.Customer Form and Report

Business Background•Texas Cars is a privately owned car

dealership in the State of Texas•Deals with buying/selling used cars.•Texas Cars is composed of 5 franchises:

Houston, Dallas, Austin, San Antonio and Corpus Christi.

•Administrative Office: Houston, TX

Business Requirements •Design/create Database for Texas Cars’

inventory system.•Create a login portal for administrative

personnel for each branch.•Create a login portal for potential

customers to create wish lists.•Browse through the cars according to

specifications such as make, model, color, price, mileage and type.

Context Diagram

Level 0 DFD

Level 1 Process 2 DFD

Level 2 Process 2 DFD

Level 1 Process 3 DFD (Run Reports)

Structure Chart

Logical Design – ER Diagram

Physical DesignCustomers (Cust_ID, Mobile_num, Email_address,

Other_cust_details)Addresses (Address_id, Cust_id, Address_line1, Address_line2,

City, State, Zip_code)Car Features (Car_Feature_ID, Feature_desc)Inventory (Car_inventory_ID, Mfg_name, Model_ID,

Vehicle_cat_ID, Price, Mileage, Purchase_date, Year_registrated, Car_Feature_ID)

Car Models (Model_ID, Mfg_code, Model_name, Model_year)Car_manufacturers (Mfg_name, Mfg_details)Vehicle_categories (Vehicle_cat_id, Vehicle_cat_desc)Customer_preferences (Cust_pref_id, Car_feature_id,

Cust_id, Cust_pref_details)Cust_search (Search_id, Cust_id, Search_Date)Cust_search_details (search_details_id, Model_id,

Model_year, Feature_id, Mfg_name, Search_id)

ER Diagram in Access

Customer Form

Customer Report

Questions ?