1. BSIS 405 – Database Concepts & Design 5/9/2006
William Turnley
Week 6
© 2006 William Turnley 1
University of San Francisco, Business Information Systems
Entity Relationship Diagram (ERD) for Fiat Voluntas Tua Travel Reservation Database –
MADEFOR
DEPARTSFROM
Airports
AirportCode
AirportDesc
AirportCity
AirportState
AirportCountry
AREOFFERED
STAYSAT
WEREMADEMAKES
Reservations
ResNbr
ResPassport
ResPassportCntr
ResEventPrice
ResDeposit
ResBalanceDue
ResEventType
ResEventDate
ResBookingDate
ResSideCharges
Payments
PayNbr
PayAmt
PayCurrentDue
PayEventCost
PayExtras
PayTotalCost
PayDate
Lodging
LogeNbr
GrpNbr
LogeDesc
LogeFull
LogeStayCount
LogeCap
Side Trips
SideNbr
SideDesc
SideCost
Group
GrpNbr
TravDptDate
TravRtnDate
TravNbrOfDays
TravBasicCost
Members
MbrNbr
MbrFirstName
MbrLastName
MbrAddr
MbrCity
MbrState
MbrZipCode
MbrNickName
MbrLastTransDa
MbrPhoneNbr

2. Entities
Members : REGULAR ENTITY
The Fiat Travel Member List is a Master List of all of Fiat's Contacts, regardless of whether they have
travelled with Fiat. This list is used for flyers and announcements.
MbrNbr : [PK] ATTRIBUTE Type:CHAR Length=6
The MbrNbr or member number is an alphanumeric combination of "M" and five digits, i.e. M12345 or
M00005.
MbrFirstName : ATTRIBUTE Type:VARCHAR Length=15
Fiat Voluntas Tua Travel member's first name.
MbrLastName : ATTRIBUTE Type:VARCHAR Length=20
Fiat Voluntas Tua Travel member's last name.
MbrAddr : ATTRIBUTE Type:VARCHAR Length=20
Fiat Voluntas Tua Travel member's address.
MbrCity : ATTRIBUTE Type:VARCHAR Length=15
Fiat Voluntas Tua Travel member's City of residence.
MbrState : ATTRIBUTE Type:VARCHAR Length=2
Fiat Voluntas Tua Travel member's State of residence.
MbrZipCode : ATTRIBUTE Type:VARCHAR Length=10
Postal Zip code.
MbrNickName : ATTRIBUTE Type:VARCHAR Length=15
Fiat Voluntas Tua Travel member's nick name, i.e. Bill for William, Ken for Kenneth, Betty for Elizatbeth.
MbrLastTransDate : ATTRIBUTE Type:DATE
Date of last transaction, i.e. payment, reseravation, add-on or donation.
MbrPhoneNbr : ATTRIBUTE Type:VARCHAR Length=10
Fiat Voluntas Tua Travel member's phone number.
Groups : REGULAR ENTITY
Groups are planned travel to Medjugorje. The dates and length of stay are pre-planned and, for the most
part, traditional.
TravDptDate : ATTRIBUTE Type:DATE
TravRtnDate : ATTRIBUTE Type:DATE
TravNbrOfDays : ATTRIBUTE Type:INTEGER
TravBasicCost : ATTRIBUTE Type:DECIMAL Length=2 Width=6
GrpNbr : [PK] ATTRIBUTE Type:CHAR Length=8
Side Trips : REGULAR ENTITY
Side Trips could possibly be "day only" which constitute a bus ride and a bit of walking or could be a 3 day
trip to Rome, Italy.
SideNbr : [PK] ATTRIBUTE Type:CHAR Length=6
The SideNbr or Side Trip number is an alphanumeric combination of "ST" and three digits, i.e. ST123 or
ST005.
SideDesc : ATTRIBUTE Type:VARCHAR Length=25
A brief description of the side trip.
SideCost : ATTRIBUTE Type:DECIMAL Length=2 Width=5

3. The added cost of the side trip.
Lodging : REGULAR ENTITY
Most travelers would prefer to stay at Mirjana's. However, only the first 30 travelers can be accommodated.
LogeNbr : [PK] ATTRIBUTE Type:CHAR Length=3
The LogeNbr or Lodging number is an alphanumeric combination of "L" and two digits, i.e. L12 or L05.
LogeDesc : ATTRIBUTE Type:VARCHAR Length=25
A brief description of the lodging.
LogeFull : [ALLOW NULL] ATTRIBUTE Type:BOOLEAN
This flag indicates if lodging capacity has been met for this site. Another site have to be chosen. The
default is NO.
GrpNbr : [PK] ATTRIBUTE Type:CHAR Length=6
The GrprNbr or group number is an alphanumeric combination of "G" and five digits, i.e. G12345 or
G00001.
LogeStayCount : ATTRIBUTE Type:INTEGER
The count in a specific group to calculate lodging capacities.
LogeCap : ATTRIBUTE Type:INTEGER
The capacity of the lodging. This is a fixed number which is used as a limit.
Payments : REGULAR ENTITY
The Payments table holds all payments made toward reservation charges.
PayAmt : ATTRIBUTE Type:DECIMAL Length=2 Width=6
Current Balance (Must be zero for a booking - PayCurrentDue - PayAmt.
PayCurrentDue : ATTRIBUTE Type:DECIMAL Length=2 Width=6
Current Balance (Must be zero for a booking - PayCurrentDue - PayAmt
PayNbr : [PK] ATTRIBUTE Type:CHAR Length=6
The PayNbr or payment number is an alphanumeric combination of "P" and five digits, i.e. P12345 or
P00099.
PayEventCost : ATTRIBUTE Type:DECIMAL Length=2 Width=6
The original cost for the event.
PayExtras : [ALLOW NULL] ATTRIBUTE Type:DECIMAL Length=2 Width=5
Additional charges.
PayTotalCost : ATTRIBUTE Type:DECIMAL Length=2 Width=6
Total Balance (PayEventCost + PayExtras)
PayDate : ATTRIBUTE Type:DATE
The date the payment was received for this payment number.
Reservations : WEAK ENTITY
Reservations are made for all Fiat events. Fiat Events include Travel to Medjugorje, Conventions and
Retreats. There is a fee for all. Travel fees vary depending upon departure city.
ResNbr : [PK] ATTRIBUTE Type:CHAR Length=6
The ResNbr or Reservation number is an alphanumeric combination of "R" and five digits, i.e. R12345
or R00069.
ResPassport : ATTRIBUTE Type:VARCHAR Length=15
ResPassportCntry : ATTRIBUTE Type:VARCHAR Length=3

4. ResEventPrice : ATTRIBUTE Type:DECIMAL Length=2 Width=6
The base price of travel, the conference or retreat.
ResDeposit : ATTRIBUTE Type:BOOLEAN
Deposit for the Reservation. Was one made? Yes or No.
ResBalanceDue : ATTRIBUTE Type:BOOLEAN
Balance Due is ((EventPrice + SideCharges) - Deposit). If there is a Balance Due; No booking. Send a
letter or make a call. Find the intent!
ResEventType : ATTRIBUTE Type:NO DATATYPE
The Event Type indicates whether the record is for Travel - "T", Conference - "C" or a Retreat - "R".
ResEventDate : ATTRIBUTE Type:NO DATATYPE
The scheduled date of travel, the conference or retreat.
ResBookingDate : ATTRIBUTE Type:NO DATATYPE
The date the passenger's travel was secured (this will be prior to the ResEventDate).
ResSideCharges : [ALLOW NULL] ATTRIBUTE Type:DECIMAL Length=2 Width=5
Additional charges to the base price.
MbrNbr : [PK] ATTRIBUTE (from Members) Type:CHAR Length=6
GrpNbr : [PK] ATTRIBUTE (from Groups ) Type:CHAR Length=8
Airports : REGULAR ENTITY
The Airport table is needed to justify charges for travel to Medjugorje. The codes are all IATA.
AirportCode : [PK] ATTRIBUTE Type:CHAR Length=3
AirportDesc : ATTRIBUTE Type:VARCHAR Length=35
AirportCity : ATTRIBUTE Type:VARCHAR Length=20
AirportState : [ALLOW NULL] ATTRIBUTE Type:CHAR Length=2
AirportCountry : ATTRIBUTE Type:VARCHAR Length=25
Relationships
MAKES : IDENTIFYING RELATIONSHIP Members ONE MANDATORY to Reservations MANY OPTIONAL
WERE MADE : IDENTIFYING RELATIONSHIP Reservations MANY OPTIONAL to Groups ONE
MANDATORY
STAYS AT : REGULAR RELATIONSHIP Reservations MANY MANDATORY to Lodging ONE
MANDATORY
ARE OFFERED : REGULAR RELATIONSHIP Reservations ONE OPTIONAL to Side Trips MANY
OPTIONAL
DEPARTS FROM : REGULAR RELATIONSHIP Airports ONE MANDATORY to Reservations ONE
MANDATORY
MADE FOR : REGULAR RELATIONSHIP Reservations MANY MANDATORY to Payments ONE
MANDATORY