cingular wireless Jennifer Conanan Ilya Dvoiris Saurabh Sangla Tariq Shaikh Nancy Tariga Yenny Usman Wen Wang

cingular cingular wirelesswireless

Jennifer Conanan Ilya Dvoiris Saurabh Sangla

Tariq Shaikh Nancy Tariga Yenny Usman Wen Wang

overview eer diagram

company profile

queries conclusion

proposal

queriesnormalizationrelational schema

Overview

• Company Profile• Proposal• EER Diagram• Relational Schema• Normalization• Queries• Conclusion


company profile

queries conclusion

proposal


Company Profile

•Cingular Wireless is the second largest wireless company in the U.S.

•Cingular Wireless is a joint venture between the domestic wireless divisions of SBC and BellSouth. SBC owns 60 percent of the company and BellSouth owns 40 percent, based on the value of the assets both contributed to the venture.


company profile

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proposal


Project Proposal

• Design a database system for a Cingular Wireless Warehouse in Dublin, California– Keep track of about 50 various

electronic components of the transmission boxes

– Determine the geographical placement of the transmission boxes


company profile

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proposal


EER Diagram

(0,N)

by

REFURBISHED

represents

DISTRIBUTOR

made byPRODUCT

NEW

d

from

requestsis type of

includes ORDER

INVENTORY ITEM

placed by

EMPLOYEE

ANTENA

CABINET

has

connected to

WIRES

V3

V4

HI-CAP

placed at

GEOGRAPHICALCOORDINATES

has LOCATION

what typeOTHER

PART REPLACEMENT

JOB

done at

assigned to

tests

FIELD TECH

OTHERWAREHOUSE

WORKER

uses

TRUCK

RADIO

BATTERY

COMBINER

SIGNALAMPLIFIER

d

d

d(1,1)

(1,1)

(1,1)

(0,N)

(0,N)

(1,N)

(0,N)

(1,N)

(1,1)

(0,N)

(1,1)

(1,1)

(0,N)

(0,N)

(2,2)

(1,N)

(1,1)

(1,N)

(1,1)

(0,N)

(0,N)

(1,1)

(1,1)

(1,1)

(1,N)

(1,N) (1,N)

(1,1)

(1,N)

longitude/latitude

JID

WID

RID

BID

ComID

SAID

AID

CID

PID

TID

NID RID

MID

DID

OID

(1,1 )

has

has

(1,1)

(0,N)

(0,N)(1,N)

d

PART TYPE

(0,N)

(1,N)

d

MANUFACTURER

attached to

(0,N)

EER EER DiagramDiagram

(0,N)


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Relational Schema


company profile

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1 LocationLID address city state zip country description period_between_maintenance last_date_of_maintenance X Y

2 AntennawarehouseID type range frequency

3 BatterywarehouseID type

4 Location_Of_PartwarehouseID LID

5 CabinetwarehouseID type LID Range

6 CombinerwarehouseID

7 DistributorDID companyname contactname phone email fax fixedordercost leadtime desc

8 Distributor_Represents_ManufacturerDID MID

9 EmployeeEID ssn fname lname mname salary hiredate phone email in_out

10 FieldTechSpecializationFTID Specialization

11 FieldTech_EmployeeEID FTID

12 FieldTechUsesTruckwarehouseID FTID mileage

13 FieldTechTestsPartwarehouseID FTID

14 InventoryIID warehouseID TimeIn TimeOut

15 JobJID LID FTID starttime endtime

16 Job_Descriptiondescription specialtool

17 MadeBywarehouseID MID

18 ManufacturerMID name email fax address city state zip country

19 NewwarehouseID warranty price

20 OrderOID EID DID warehouseID date

22 PartReplacementPartReplacedID ReplacingPartID JID

26 Refurbished warehouseID warranty price

24 ProductwarehouseID MID OID

21 TruckwarehouseID make model year lastdateofmaintenance PeriodBetweenMaintenance

23 PartTypewarehouseID PID DID partname holdingCost length width height

25 RadiowarehouseID

27 SignalAmplifierwarehouseID

28 V3warehouseID

29 V4warehouseID

30 WarehouseWorkerEID WID

31 HicapwarehouseID


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Normalization

2nd Normal Form

FD1

FD2

3rd Normal Form

JobJID LID FTID startdate enddate description

JobJID LID FTID startdate enddate specialtool description

Job_Description specialtool description


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Queries

1.Service coverage2.Economic Order Quantity3.Scheduled Maintenance of Location4.Special tools5.Field Technician Specialization


company profile

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Coverage Query

Checks to see if a certain area has Cingular coverage; if it does, lists the Location ID, along with the address and city of all transmission boxes that cover the specified area.


company profile

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proposal


Coverage Query

• Identify transmission towers and radius of coverage

• Identify if any tower(s) provide service to the specified point

• Calculate the distance between the specified point and each tower


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Coverage Query

- 4.1 Calculate DistanceSELECT LC.LID, (Sqr((LC.X-Xparameter)^2 + (LC.Y-Yparameter)^2)) AS DIST,LC.rangeFROM LocationsofCabinets AS LC;

- 4.2 Locations of CabinetsSELECT [Location].[LID], [Location].[X], [Location].[Y], c.rangeFROM Location, Cabinet AS cWHERE c.LID = [Location].[LID];

- 4.3 CoverageSELECT [CD.LID] AS LID,L.address, L.cityFROM Location AS L, CalculateDistances AS CDWHERE CD.Dist<CD.Range AND CD.LID = L.LID;


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Coverage Query


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proposal


Coverage Query


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proposal


Lists the PID, part name, the EOQ, and the current inventory level of each item.

Minimizes the amount of orders so that total variable costs required to order and hold inventory are balanced

EOQ = 2 * Ordering Cost * Demand Holding Cost

EOQ Query


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EOQ Query

– 2.1 DemandSELECT o.warehouseid, p.pid, p.partname, o.dateFROM [order] AS o, parttype AS pWHERE (((o.warehouseid)=p.warehouseid));

– 2.2 Fixed CostSELECT o.warehouseid, p.pid, p.partname, o.dateFROM [order] AS o, parttype AS pWHERE (((o.warehouseid)=p.warehouseid));

– 2.3 Holding CostSELECT DISTINCTROW sqr(1/[holdingcost]) AS holding, [pid], [did]FROM parttype;

- 2.4 CountSELECT count([warehouseid]) AS [count], [pid]FROM demandGROUP BY [pid];


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EOQ Query

- 2.4 EOQPARAMETERS Forms![EOQ]!BeginningDate DateTime, Forms![EOQ]!BeginningDate_plus_one_year DateTime;SELECT DISTINCT PT.PID, (([holdingcost].[holding])*([count].[count])*([fixedcost].[sqrt_fc])) AS EOQ, i.Inventory, PT.PARTNAMEFROM holdingcost, demand, parttype AS pt, Fixedcost, INVENTORY_levels AS i, [count]WHERE pt.pid=[demand].[pid] And [holdingcost].[pid]=[demand].[pid] And [holdingcost].[did]=[fixedcost].[did] And [Forms]!EOQ!BeginningDate<=[demand].[date] And [Forms]![EOQ]!BeginningDate_plus_one_year>=[demand].[date] And [count].[pid]=[holdingcost].[pid] And i.pid=[holdingcost].[pid];


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EOQ Query


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EOQ Query


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Scheduled Maintenance

Query

PARAMETERS Forms![date Dialog]![Date] DateTime;SELECT [lid], [address], [city], [state], [zip], [country],

([LastDateofMaintainence]+[PeriodBtwMain]) AS Scheduled_DateFROM locationWHERE [Forms]![date Dialog]!Date>=([LastDateofMaintainence]+[PeriodBtwMain]);

Lists locations and their addresses that are scheduled for maintenance by a given date

Allows for scheduling of field technicians to be more efficient and to keep proper inventory levels of parts required more maintenance jobs


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Query


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Query


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Special Tool Query

Lists the special tools needed for each type of job

Allows the technician do the job more efficiently by immediately knowing which tools are needed without having to retrieve unnecessary ones.

SELECT JD.specialtoolFROM jobdesciption AS JDWHERE JobDesc = JD.description;


company profile

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Special Tool Query


company profile

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proposal


Special Tool Query


company profile

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proposal


FT Specialization Query

Retrieve the FT id, last name, first name, email and phone number of those who are qualified to do a specific job

Allows warehouse workers to quickly find which technician is able to repair specific parts

SELECT E.EID, E.FNAME, E.LNAME, E.email, E.phoneFROM employee As E, FieldtechSpecialization AS FTS, FieldTechEmployee AS FTEWHERE FTE.EID=E.EID And FTE.FTID=FTS.FTID And specific = FTS.specialization;


company profile

queries conclusion

proposal




company profile

queries conclusion

proposal




company profile

queries conclusion

proposal


Conclusion

• Company Profile• Proposal• EER Diagram• Relational Schema• Normalization• Queries• Conclusion

Any questions?

Any questions?

Documents

cingular wireless Jennifer Conanan Ilya Dvoiris Saurabh Sangla Tariq Shaikh Nancy Tariga Yenny Usman Wen Wang