OOSD Record2012

8/12/2019 OOSD Record2012

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HOLY JESUS & MARY

P.G. COLLEGE OF COMPUTER SCIENCES

CERTIFICATE

Regd.No :

This is certify that this is a bonafide record of practical work done in OOS

lab by Mr./Mrs/Ms. __________________________ of MCA III year I semester during th

year 2012.

Lecturer Incharge Head of the

Department

External Examiner


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INDEXS.no Name of the program Page.No

1 Introduction to UML 3-9

2 Hotel Room Reservation Scenario 11-13

3 Bill preparation for major distributor 14-16

4 Statistics of Cricket player 17

5 System to record Assignment of Equipment to chemist 18-19

6 System to track items in a super market 20-21

7 System to computerize SAMs Courier 22-24

8 System to track Business school admission 25-28

9 System to manage orders in OTOS pharmacy 29-31

10 Leave management 32-34

11 OU central library 35-37

12 Health care Organization 38

13 PG program in LAH University 39-40

14 Online Examination system 41-42

15 System for maintaining Book Club 43

16 Online Railway Reservation system 44-45


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AN OVERVIEW OF THE UML

The UML is language for

Visualizing

Specifying

Constructing

Documenting

The UML is a Language :

A language provides a vocabulary and the rules for combining words in thvocabulary for the purpose of communication. The modeling language is a language who

vocabulary and rules focus on the conceptual and physical; representation of a system .

modeling language such as the UML is thus a standard language for software blueprints.

The UML is a language for Visualizing:

The UML is more than just a bunch of graphic symbols, and each symb

in UML notation is well-defined semantics.

The UML is a language for Specifying:

Specifying means building models that are precise, unambiguous an

complete in particular the UML addresses the specification of all important analysidesign and implementation decisions that must be made in developing and deployina software intensive system.

The UML is a language for Constructing:

The UML is not a visual programming language, but its models can bdirectly connected to a variety of programming languages. This means that it is possible

map from a model in UML to a programming language such as java or c++.

The UML is a language for Documenting:

A healthy software organization produces all sorts of artifacts in addition

raw executable code. This artifacts includes

Requirements

Architecture


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Design

Prototypes

Project plans

Releases

A CONCEPTUAL MODEL OF THE UML

To understand the UML you need to form a conceptual model of th

language and this requires learning three major elements is the UMLs basic buildinblocks.

Building Blocks of the UML:

The vocabulary of the UML encompasses three kinds of building blocks:

1. Things2. Relationships.

3. Diagrams.

THINGS IN UML:

Structural things Behavioral things

Grouping things

An notational things

STRUCTURAL THINGS:

These are the nouns of the model. There are seven kinds of structural things.

Class: Is a description of set of objects that share the same attributes, operationrelationships, and semantics. A class implements one or more interfaces.


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Interface:

Is a collection of operations that specify a service of a class or a component. A

interface might represent the complete behavior of a class or a component or a part of th

behavior.

Collaboration:

Defines an interaction and is a society of roles and other elements that wo

together to provide some cooperative behavior that is bigger than the sum of all elements.

UseCase:

Is a description of set of sequence of actions that a system performs that yields a

observable result of value to a particular actor.

Active Class:

Is a class whose objects own one or more processes or threads and therefore cainitiate control activity.


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Component:

Is a physical and replaceable part of a system that confirms to and

provides the realization of set of interfaces.

Node:

Is a physical element that exists at run time and represents a computational resource

BEHAVIORAL THINGS:

Are the dynamic parts of the UML models. There are two types

Interaction:Is a behavior that comprises a set of messages exchanged among a set of objec

within a particular context to accomplish a specific purpose.


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State machine:Is a behavior that specifies the sequence of states an object or an interaction goe

through during its lifetime in response to events, together with its responses to thos

events.

GROUPING THINGS: Are the organizational part of a UML model.

Package: Is a general purpose mechanism for organizing elements into grouStructural things, behavioral things , and even other grouping things may be placed i

package

ANNOTATIONAL THINGS: Are the explanatory parts of UML models.

Note: These are comments you may apply to describe , illuminate , and remarabout any elements in the model.


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RELATIONSHIPS IN THE UML:

There are four kinds of relationships in the UML.

Dependency:Is semantic relationship between two things in which change to one thing may effec

semantics of other things.

Association:Is a structural relationship that describes a set of links, a link being a connection am

objects.

Generalization: Is a specialization/generalization relationship in which objects of speciaelements are substitutable for objects of the generalized parent.

Realization: Is a semantic relationship between classifiers, wherein one classifier specif

contract that another classifier guarantees to carry out.


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DIAGRAMS IN THE UML:

Diagram is a graphical presentation of a set of elements. There are nine types of diagr

1. class diagram2. Object diagram

3. Use-case diagram4. Sequence diagram

5. Collaboration diagram6. Statechart diagram

7. Activity diagram8. Component diagram

9. Deployment diagram

Class diagram: Shows a set of classes, interfaces and collaborations and therelationships. These diagrams are the most common diagrams found in modeling obje

oriented systems.

Object diagram: Shows a set of objects and their relationships. They represent statsnapshots of instances of things found in class diagrams.

Usecase diagram: Shows a set of usecases and actors and their relationships. It representstatic view of the system.

Sequence & Collaboration diagrams: Are kind of interaction diagrams shows an

interaction, consisting of a set of objects and their relationships, including the messagesthat may be dispatched among them. They are dynamic view of a system.

Statechart diagram: Shows a state machine, consisting of states, transitions, event

activities. It represents dynamic view of a system.

Activity diagram: Is a special kind of a statechart diagram that shows the flow fro

activity to activity within a system. It represents dynamic view of a system.

Component diagram: Shows the organizations and dependencies among a set

components. These represent static view of a system.

Deployment diagram: Shows the configuration of runtime processing nodes an

components that live on them.


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Question Bank


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1.) Draw Use Case Diagram & Activity Diagram with swimlane for the front office system in a 5-

star hotel described below.

Front office of any hotel is responsible for all rooms reservations, room allocations and final

settlement of bills. Any company or person can reserve rooms for their future stay. They hav

to indicate from what date to what date they need the rooms. They also have to indicate how

many rooms are required . Sometimes the reservations could be cancelled or dates or numbof rooms changed. For reservation , cancellation or modification of rooms, customer receive

an acknowledgement from the hotel.

Use case diagram:-

Modifications

Reservation

Room Allocation

Settlement of bill

No., of rooms for reservation

No of rooms

Dates

User Front Office

Cancellation


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Activity diagram:-

Modify

Acknowledgment

Cancel

Reserve

Available

EnquiryCheck

Availabil

Rooms Dates


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2. Front office of any hotel is responsible for all rooms reservations, room allocations and

final settlement of bills. Any company or person can reserve rooms for their future stay. The

have to indicate from what date to what date they need the rooms. They also have to indicat

how many rooms are required . Sometimes the reservations could be cancelled or dates or

number of rooms changed. For reservation , cancellation or modification of rooms,

customer receives an acknowledgement from the hotel. Draw sequence diagram for reservroom scenario, also draw the class diagram

Sequence Diagram:-

Class Diagram:-

Customer Front Office

No., of daysNo., of rooms

Modification of

Reservation of rooms

Cancellation of

Acknowledgement

Check Availability


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3 A major distributor of office supplies has a set of criteria for preparing bills. When t

customer places the order one of the sales staff prepares the order and writes the bill, if the

is an insufficient quantity of items on hand, the back order is set up for missing items. Th

available items are shipped and bill is prepared. The cost is billed for the back order item

when they are shipped. Wholesale customers are eligible for discount if they purcha

minimum of 100 items. Retail customers are not eligible for any discounts irrespective of thnumber of items ordered. All retail customers pay sales tax, wholesale customers dont p

any tax provided they have state tax exemption. All bills are mailed to customers. Draw u

case diagram and also draw sequence diagram for one of the scenario.

wholesale

custmor

retailer

back order

customer

place order

prepare order

mail bills

sales person

tax

discount

bill

:Customer : Salesperson

place order( )

check availability( )

ship order( )

mail bills( )


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4. A major distributor of office supplies has a set of criteria for preparing bills. Whe

the customer places the order one of the sales staff prepares the order and writes the bi

if there is an insufficient quantity of items on hand, the back order is set up for missin

items. The available items are shipped and bill is prepared. The cost is billed for the bac

order items when they are shipped. Wholesale customers are eligible for discount if the

purchase minimum of 100 items. Retail customers are not eligible for any discounirrespective of the number of items ordered. All retail customers pay sales tax, wholesa

customers dont pay any tax provided they have state tax exemption. All bills are maile

to customers. Draw activity diagram with swim lanes and draw class diagram.

Class Diagram & Activity Diagram:

1---------------------1

1

*1

1

*

1

1

Customer

Name:String

Custmertype:StringItemlist:String

+Items()

+bill paying()

+offers()

Purchases

item-string

quality()

price()

Billig

item-string

product details()gives the bill()

+cards

+cash

Cashier

Customer details: String

Paid details

+prepares bill()

+offers()+payment()

Offers

type: String

Discount()


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Customer Stores Distributor

Place order Checkavailability

Items Price

Available

Prepare order Price

Ship Mail bills

Pay bills

Back order

Close


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5. A century system is the statistics provider organization of all the first class cricket match

conducted across the world round the year. They compile all the statistics of the players

terms of matches played, venues, country, match type (test/one-day). For each matc

statistics is compiled for each player i.e., runs scored in each innings, wickets and catche

taken, run outs, number of fours and sixes hit etc., The Company wants to develop a comput

application to compile these statistics. Identify classes using CRC and draw the class diagrawith the necessary relationships. Also specify the multiplicities, roles etc. Draw the use ca

diagram with statistician as an actor

Usecase Diagram:

player information

Statisstician

match information


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6. A laboratory has several chemists who work on one or more projects. Chemists (Emp

Name, Phone_no) also may use certain kinds of Equipments (Serial_no, cost) on each proje

(Projectid, start_date). The organization wishes to record assign- date i.e., the date when t

given equipment item was assigned to a particular Chemist working on a specified project,

well as total number of hours the chemist has used the equipment for the project. Thchemist must be assigned to at least one project and one equipment item. Draw the use ca

diagram and class diagram.

Usecase & Class Diagrams :

Lab

Equipment

Chemists

Project


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7. Mega super market has three checkout counters. In order to improve the checko

process a PC has been set up at each of these counters along with the printer. Each item in th

super market is packed & each packet carries on it a price tag on which are printed its item co

and price. Each customer picks out the desired packet from the shelves place them in th

standard shopping basket supplied by the super market and carries the basket to one of th

checkout counters. The counter operator takes out each of the packets from the basket, keys the 12 digit item code. The amount is collected from the customer and a bill is printed and issue

to the customer. Identify the classes and draw class diagram with suitable relationship

multiplicities and roles. Also draw the state diagram for one of the item object.

Class & State Chart Diagrams :


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Packet Placed on

shelvesPicket

CarriedBilled


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8. SAMs Couriers Limited intends to computerize the recruitment process. Th

advertisements for a particular post appear on their website. The candidates are called f

interview based on the eligibility criteria which varies from post to post. Informati

regarding the eligibility and vacancies is maintained in a database. The candidate is selecte

based on written test and interview. Once selected, the candidate is under probation for on

year. In this period the candidate is not eligible for any special leaves and benefits. Aftcompletion of the probation period the manager evaluates the candidates performance an

will be given an appointment letter with a unique employee id. Draw use case diagram for th

given scenario. Also draw the sequence diagram for one of the scenarios.

Advertisments

Organization

Appointing

interview

Selection

written tes t


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Evaluation for selection :Candiate

1 Advertise

4 call for interview

5 Appear for interview

6 Appear for written test

2 Applt for post

3 evaluation


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9. SAMs Couriers Limited intends to computerize the recruitment process. T

advertisements for a particular post appear on their website. The candidates are called f

interview based on the eligibility criteria which varies from post to post. Informati

regarding the eligibility and vacancies is maintained in a database. The candidate is selecte

based on written test and interview. Once selected, the candidate is under probation for on

year. In this period the candidate is not eligible for any special leaves and benefits. Aftcompletion of the probation period the manager evaluates the candidates performance an

will be given an appointment letter with a unique employee id. Draw activity diagram wi

class diagram. Draw the complete class diagram with necessary relationships, multiplicitie

roles etc.


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10. In a Business school, once a student is admitted, he/she will be assigned a counsellor. Th

student has to report to the counsellor & fill his/her personal details in the counselling fil

Students queries/problems are addressed by the counsellor, which is also recorded in th

counselling files. The Principal of the school monitors the process of counselling i.e. t

problems reported by the student and actions taken by the counsellor. As the strength of th

school has increased, it is not possible for the principal to monitor the counselling procemanually. Draw the use case diagram and activity diagram with swim lanes.

counseller

principal

registered

select course

view counselling file

queries &problems

actions taken

student

admission


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Registered

Selected course

Counsellor

Problems &

Actions taken Principal

Student


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11. In a Business school, once a student is admitted, he/she will be assigned a counsello

The student has to report to the counsellor & fill his/her personal details in the counsellin

file. Students queries/problems are addressed by the counsellor, which is also recorded

the counselling files. The Principal of the school monitors the process of counselling i.e. th

problems reported by the student and actions taken by the counsellor. As the strength of th

school has increased, it is not possible for the principal to monitor the counselling procemanually. Draw the sequence diagram for all the scenarios. Also specify how sequen

diagrams are converted to collaboration diagrams

Student

Counsellor

Principal

3.Problem& Queries

4.Action Taken

1: Registered

2: Select Course


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student counsellor principal

registered

select course

problems&queries

action taken

satisfied

admisssion completed


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12. OTOSs pharmacy is the distributor of various pharmaceuticals products. They have a

huge network of customers. The registered customers can only book orders for the specified

product. If the specified product is available the required quantity is checked against the

quantity on hand (QOH). If the required quantity is less than QOH a deliver challan is

prepared. After the delivery of the product an Invoice is prepared by accountant which

contains the cost of ordered items, deductions if any (in case of damaged or lost goods) andprevious outstanding balance. Then the invoice is sent to the customer. Draw the use case

diagram with use case specifications. Draw the sequence diagram for prepare invoice

scenario.

AccountantCustomer Pharmacy

placeOrder() checkAvailability()

deliverChallen

reciveGoods()

invoice()

Available Ordered Transit Deliver


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13. OTOSs pharmacy is the distributor of various pharmaceuticals products. They have a

huge network of customers. The registered customers can only book orders for the specified

product. If the specified product is available the required quantity is checked against the

quantity on hand (QOH). If the required quantity is less than QOH a deliver challan is

prepared. After the delivery of the product an Invoice is prepared by accountant which

contains the cost of ordered items, deductions if any (in case of damaged or lost goods) andprevious outstanding balance. Then the invoice is sent to the customer. Draw the use case

diagram with use case specifications. Draw activity diagram with swim lanes & draw state

diagram of the product object.

Invoice

Quit

Deductions

Balance

BookOrder

DeliverChallenPrepare

Book order

Customer

PreviousOutstanding

Quit

Deliverchallen prepare

Invoice Deductions

Previousoutstanding

balance

Book order

Book order

Quit


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Placeorder

Prepare

Quate

PrepareDeliver

Receive

Ship goods

ItemsCost

SentReceive

Customer Pharmac Accountan


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14. Global group requires a system to be developed for maintenance of leaves in their

organization. There are different types of leaves: Casual leaves, Medical leaves, Earned leave

and Special leaves. These leaves vary from employee to employee. If the employee is regular

he can avail all types of leaves. An adhoc employee can only avail casual leaves. The medical

and earned leaves can be credited in the employees account. The maximum limit of the cred

is 240. Further if an employee has availed all the leaves his salary may be deducted. Drawactivity diagram and model a sequence diagram for one of the scenario.

Employee

Availableof all typesof leaves

Available Leaves

Availableleaves

Dedicationin salary

No dedicationin salary

Emp.

Employe Organizatio

Emp.

Available leaves


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Employee Organisation

applyForLeave()checkAvailability()

availableLeave()

availableLeaves()

deductSalary()


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15. Global group requires a system to be developed for maintenance of leaves in the

organization. There are different types of leaves: Casual leaves, Medical leaves, Earned leav

and Special leaves. These leaves vary from employee to employee. If the employee is regul

he can avail all types of leaves. An adhoc employee can only avail casual leaves. The medic

and earned leaves can be credited in the employees account. The maximum limit of the cred

is 240. Further if an employee has availed all the leaves his salary may be deducted. Draw ucase diagram and also draw the class diagram for the given scenario.

Regular emp. Adhoc emp.

Employee

Leaves

tyes of leaves

Salary


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16. OUs Central library issues books to the staff & students. Students can avail 3 books

staff can avail max of 5 books. The books are issued for a period of one month. Thereafter

fine of Rs.1/- for each day is charged. The faculty members dont pay any fine. However th

have to return the book at the end of semester. The Library receives the requisition fro

various departments to new books. Once it is approved the order is placed to the vario

vendors. University gives an order of the books to a particular vendor based on thcompetitive prices they offer. Model a Use case diagram & draw the Sequence diagram for a

scenarios of a student actor.

User

Librarian

Vendor

NewUseCase6Database

searchBook

issuedBook

returnBook

addBookRecord

requestBook

provideBook


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:User :LMS :Database

login()authenticateUser()

successful()

successfullLogin()

searchBook()

searchingBook()

availableBook()

logout()

logoutSuccessful()

bookFound()

:User :LMS :Librarian :Database

issueBook()bookStatus()

available()/

waiting()bookIssued()

logout()

logoutSuccessfully()


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:User :LMS :Librarian :Database

login() authenticateUser()

successfullyAuthentication()

successfullyLogin()returnBook()

checkTime()

calculateFine()successfullyReturned()

logout()

logoutSuccessfully()

:User :LMS :Librarian :Database :PurchaseDept :Vendor

provideBook() payToVendor()payment()

bookSend()

updateBookRecord()

recordUpdated()

getBook()


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17. You have been hired to design a system for small health care organization. Th

clinic consists of several examining rooms and few rooms for short term critical care patien

A core staff of seven physicians is supplemented by internists from a local teaching hospit

Patients medical data is stored in the central database. Patients first sign in at the front des

Clerk checks the billing records, prints a summary status sheet and obtains file number fro

the system. The clerk then selects the examination room for the patient based on the casAfter waiting for the physician, the clerk moves the data packet and the patient to t

examination room. A nurse records basic medical data (weight, B.P etc). The physician mak

additional notes to both the medical and billing data and generally writes the prescriptio

order which is given to the patient and recorded on the charts. When the patient leaves, th

clerk enters the new billing data into the system (if any). The new billing data is forwarded

appropriate insurance company. Identify the classes using CRC and draw the class diagram

with appropriate relationships, multiplicities etc.


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18. LAH University offers P.G program for working men. Candidates submit th

application form to the registrar. The registrars office issues call letters to the candidates f

writing the written test based on the following criteria: The first criterion for selection is th

the candidate should be an engineering graduate or must have a PG degree (no

engineering). The second criterion is that the candidate should put a minimum of 2 years fu

time experience after the qualifying degree. The candidates qualified in written test acalled for spot admissions and the seats are allotted based on the following distribution

seats: 30% of seats are reserved for ST, 10% for SC, 10% for BC & 20% for women and th

remaining seats are under open competition. Draw a use case diagram and activity diagra

with swim lanes.

Registration office candidate

Apply foradmission

call letter

selection

spot admission allotment


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Officers PGprogram

30% of seats

admission

30% of seats 10% of seats

Allotment of

Apply for PGro ram

Submit

Min. of 2PG degree

Written test

Issue call

Not selected Spot

30% of seats

admission


Allotment of

30% of seats

admission


Allotment of

30% of seats

admission

10% of seats

Allotment of

30% of seats

admission

10% of seats

Allotment of

30% of seats

admission


Allotment of

University Registration officeCandidat

Not qualify qualify

Not OC candidate OC candidate

ST SC,BC

Woman


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19. An Online examination system maintains a huge database of questions which a

classified according to different parts of the syllabus and also according to difficulty level.

the beginning a student is considered to be an average student with a percentile of 50 and

given questions of medium difficulty randomly from the total syllabus. From here the type

questions presented varies according to the performance. The score starts with a value equ

to the score obtained by a person with a percentile of 50. The score is calculated after evequestion and the change is score depends on difficulty level of the question. There is

restriction on the minimum number of questions of each type and a test taker may get mo

questions in any particular section if his performance in that section is below his overa

performance. Draw sequence diagrams for all the scenarios identified.

:TakesExam :ExaminationSystem

:Database

takesExam()specifiesSyllabus()

retrievesQuestions()sendsQuestions()/

answeringQuestions()

computeScores()

[start.score=50]

displaysQuestions()


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20. An Online examination system maintains a huge database of questions which a

classified according to different parts of the syllabus & also according to difficulty level. In th

beginning a student is considered to be an average student with a percentile of 50 & is give

questions of medium difficulty randomly from the total syllabus. From here the type

questions presented varies according to the performance. The score starts with a value equto the score obtained by a person with a percentile of 50. The score is calculated after eve

question & the change is score depends on difficulty level of the question. There is

restriction on the minimum number of questions of each type & a test taker may get mo

questions in any particular section if his performance in that section is below his overa

performance. Model a Use case diagram & a Class diagram.

StudentDatabase

Questions

Computer

score


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21. The book club has members. The book clubs sells books to its members. The memb

places orders for books, which the book club full fills. Each order contains one or more tha

one books. The books are written author(s). The publisher publishes the book. An author ca

write more than one books and a book can have more than one author. A book is published

a publisher, but a publisher publishes many books. A member can place more than one orde

The member also can choose not to place an order. The book club sells many books. Drawuse case diagram with suitable relationships between use cases and model a class diagram.

BookClubMembers

Maintain & sellbooks

Place order for books

Fullfill order


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22. An online railway reservation consists of the following activities. A Passenger c

reserve a ticket, cancel a ticket and enquiry. Each train has limited number of reserved seat

Once a passenger cancels a ticket, required amount is deducted and the waiting list passeng

is allotted the seat. Passenger may also book a ticket in tatkaal scheme by paying addition

amount. Passenger who booked the ticket under tatkaal scheme cant get any refund if th

ticket is cancelled. The chart is prepared two hours before the departure of the train. ModeUse case diagram for the given scenario with complete use case specifications.

check the availability

fills the reservation form

enter the details on s/ m

calicuate the cost

reservation is conformed

payment

cash payment

passanger

updation

clerk

check the availability...

fills reservation form

enter details to the system

calculate the cost

reservation conformed

payment

cash payment cerdit payment

print ticket

updation

calcuate the cost


calcuate the cost


calcuate the cost



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23. An online railway reservation consists of the following activities. A Passenger c

reserve a ticket, cancel a ticket and enquiry. Each train has limited number of reserved seat

Once a passenger cancels a ticket, required amount is deducted and the waiting list passeng

is allotted the seat. Passenger may also book a ticket in tatkaal scheme by paying addition

amount. Passenger who booked the ticket under tatkaal scheme cant get any refund if th

ticket is cancelled. The chart is prepared two hours before the departure of the train. Drathe state diagram for ticket object.

Passenger

Availability Fill the form

Enter the

Details

Calculate

cost

Resv

Co

nfo

rm

atio

n

Confirmatio

n

Payment Receive

Payment Print Updation

OOSD Record2012

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