Collection-Member. If the balance on the saving a/c is les than the withdrawal amount requested , the transaction will stop and the bank client notified via a message. EVENTS CLASS CONTEXT: Event classes are points in time that must be recorded. 4. One pin code allows access to all. All the information for an object is written Responsibilities on a card, which is cheap, portable, readily available & familiar. " A ?W#\""QDEGx+YA1((,"]X\[3bj 59:n jUh&wx+bn The following irrelevant classes can be eliminated because they do not belong to the problem statement : four digits underline indicate eliminated classes. Buildings and employees are outside the domain of this application, define the bank class as an aggregation of ATM machine and Account classes. 0000004725 00000 n If so create a new class for it Adult members behave different from Youth members 3 rd year BE students behave differently from 1 st Year BE students 35, Noun Phrase Approach Attribute Classes: Tentative objects that are used only as values should be defined or restated as attributes and not as a class Phone number of student Irrelevant classes. Nm 1978, cng ty chnh thc ly tn l "Umeken", tip tc phn u v m rng trn ton th gii. TANGIABLE AND DEVICE CLASS CONTEXT: This class includes physical objects or groups of objects that are tangible and devices with which the application interacts. The following are the different class names that are being used to refer the same concept: Client, bankclient = bankclient Account , clients account = account Pin , pin code =pin Checking , checking account =checking account Savings, savings account =savings account Atm card , card =atm card 41, the revised list of candidate classes after eliminating redundant classes Four digits Invalid pin Message =bankclient Password Client, bankclient Account, clients account = account Pin , pin code = pin Pin code Checking , checking a/c =checking a/c Savings, savings a/c =savings a/c Record Atm card = atm card Savings account Review redundant classes System Transaction Review irrelevant classes Review adjectives history Account balance Amount Atm card Bank client Checking account Clients account Review attributes 42, Reviewing the classes containing adjectives review the remaining list for classes with adjectives. 4. Example: Performance is an example of concept class. Classes, Responsibilities, and Collaborators is a technique used for identifying classes responsibilities and therefore their attributes and methods. Xin cm n qu v quan tm n cng ty chng ti. OO ANALYSIS Develop use cases , activity diagrams Identify actors prototyping Develop interaction diagrams Id classes, relationships, & methods Refine and iterate OO ANALYSIS 2, analysis 1. Responsibilities The application s requirements, then are examined for actions and information associated with each class to find the responsibilities of each class. Object oriented approach: In object oriented programming, the conceptual building blocks guide the designer in defining structure. ID trans. Bank. 0000001874 00000 n Is the part class within the systems responsibilities? IDENTIFY THE ACTORS 2. 0000001226 00000 n This information guides us in defining mechanisms that properly manage object-within-object 21, I. bank class bank clients belong to the bank. Methods What services must an object provide? Classes that have a close collaboration are grouped together physically. How did the holocaust develop and what were its results, Is the prime factor in the development of social skills, Display Object Display Object Display Object Display Object, Object Detection Object Recognition Object Detection Object Identification, Classification Classification Classification Classification Features and labels Green, Classification 5 3 Classification of Biodiversity Classification Classification, Classification of Living Things CLASSIFICATION CLASSES Classification CLASSIFICATION, Object Oriented Analysis UML Use Case Driven Object, Object Recognizing Object Classes Individual Recognition Object parts, Indirect Object Pronouns Indirect Object Pronouns Indirect object, Properties18 xls Object VBA VBA Object Property Object, WPF System Object Dispatcher Object Dependency Object Drawing, OBJECT PRONOUNS Indirect Object Pronouns Direct Object Pronouns, Object Representation Define object in world space Object, Object in Memory Object Creation Object Storage More, Direct Object Pronouns Indirect Object Pronouns Double Object, Unit3 Identifying use cases Object Analysis Classification Identifying, Unit4 Identifying use cases Object Analysis Classification Identifying, Classification Alejandro Castillo Denisse Ceniceros Classification Classification is, Graph Classification Classification Outline Introduction Overview Classification using, Classification Classification Classification is the process of grouping, ZOOLOGICAL CLASSIFICATION CLASSIFICATION ITS BASIS Biological Classification is, Classification Methods Definition of Classification Classification or more, Lecture outline Classification Decisiontree classification What is classification. This process also will help us identify the attributes of the classes in the system. What is used to express rules and semantics of UML? > " $ * + , - . Do not keep two classes that express the same information. If the statement of purpose for a class cannot be formulated, we should eliminate it or delete it from the list. Example: An accounting department might be considered as a potential class. draw on your knowledge of the application domain and the real world to find them. People class (also known as person, roles and roles played class) CONTEXT: The people class represents the different roles users play in interacting with the application. Number +verify. Patient = Patient & Pvt Patient Account = saving & checking However if it is a different use of the same object or the class is irrelevant eliminate it. 53, COMMON CLASS PATTERNS APPROACH 5.

If not, what does it need? Eliminate redundant classes b. Does the part class belong to a problem domain? Client has an account. Balance Saving. Iterate & refine 7. Container: A physical whole encompasses but is not constructed from physical parts; for example, a house can be considered as a container for furniture and appliances. From what other class can it acquire what it needs? All cases must make sense in the application domain; avoid computer implementation classes defer them to the design stage. On the other hand, large volumes of text on system documentation might lead to too many candidate classes. Example: cars are an example of tangible things, and pressure sensors are an example of devices. A conceptual whole encompasses parts that may be physical or conceptual. "Sau mt thi gian 2 thng s dng sn phm th mnh thy da ca mnh chuyn bin r rt nht l nhng np nhn C Nguyn Th Thy Hngchia s: "Beta Glucan, mnh thy n ging nh l ng hnh, n cho mnh c ci trong n ung ci Ch Trn Vn Tnchia s: "a con gi ca ti n ln mng coi, n pht hin thuc Beta Glucan l ti bt u ung Trn Vn Vinh: "Ti ung thuc ny ti cm thy rt tt. 0000002952 00000 n Id is an attribute of the association.

Generate and conceptualize artistic ideas and work, Chapter 3 section 2 hinduism and buddhism develop, Develop new approaches to public governance and engagement, How did scientists understanding of cells develop, What civilization did the himalayas separate china from. transaction must include date, time, transaction type, amount & account balance. Part-of / aggregation relationships PATTERNS Assembly: An assembly is constructed from its parts and an assembly-part situation physically exists; for example, a French onion soup is an assembly of onion, butter, flour, wine, French bread, cheddar cheese, and so on. Then, given an object of Work. Multiple inheritance. 67, CLASSES , RESPONSIBILITIES & COLLABORATORS Classes, Responsibilities and Collaborators cards [CRC] Class. 0000008527 00000 n If more than one word is being used to describe the same idea, select the on that is the most meaningful in the context of the system. 179 0 obj << /Linearized 1 /O 181 /H [ 948 300 ] /L 456743 /E 63880 /N 7 /T 453044 >> endobj xref 179 27 0000000016 00000 n 0000005777 00000 n What word refers to the way sounds are woven together? Each class must have a purpose. Things Happen, usually to something else at a given date and timer as a step in an ordered sequence associated with things remembered are attributes such as who, what, when, where, how or why. 10, CLASS RESPONSIBILITY: IDENTIFYING ATTRIBUTES AND METHODS 13, Class Responsibility: Identifying Attributes and Methods Is an iterative process Responsibilities identify problems that need to be solved Expressed by a handful of short verb phrases each containing an active verb Attributes Attributes are things that an object must remember Ex: colour, cost What information about an object must be remembered? Hospital = registration 2. 25, III. rx 7y2/Q- Xin hn hnh knh cho qu v. Why did a stale- mate develop on the western front? Omit derived attributes. Ward, OT, Medical stores 6. Attempts to develop quantitative measures of lifestyle, Describe an approach to develop the physical factor. Questions asked : who when where why what how Account class behavior inherited by saving & checking a/c Checking Account class models checking a/c, withdrawal service Savings Account class models client saving a/c Transaction class track of transaction, time, date, amt & balance 2. Define relationships among access classes 3. 0000007620 00000 n For each saving a/c , one related checking a/c can exist Access to Clients a/c is provided by a 4 digit pin code having digits between 0 to 9. does the object represent by the noun behave differently when the adjective is applied to it. Account Saving-Checking checking 1 48, Noun Phrase ApproachMethod 1. Divide into three categories 2 relevant classes fuzzy classes irrelevant classes. 0000005625 00000 n 1. 14, Class Responsibility: Identifying Attributes and Methods Guidelines for defining attributes Attributes correspond to nouns followed by prepositional phases Ex: COST OF soup Attributes may also correspond to adjectives or adverbs state only enough attributes to define the Object State. The noun phrases used only as values should be restated as attributes. 0000007598 00000 n PIN : An attribute of the Bank. This information will guide us in designing classes. Name last. 3. Item. 15, Class Attributes Class Attributes Represent named properties of a UML class UML class can have many attributes of different names Attribute name is generally a short noun or a noun phrase written in lower. Initial list of noun phrases: candidate classes The initial study of the use cases of the bank system produces the following noun phrases Account balance Amount Atm card Bank client Checking account Clients account Four digits Invalid PIN Message Password Pin code Record Savings account System Transaction history 39, It is safe to eliminate the irrelevant classes. Collaborators The idea in locating collaborators is to identify how classes interact. If different words are being used to describe the same idea, select the one that is the most meaningful in the context of the system and eliminate the others. Simplify class & structure a. 26, CASE STUDY : Problem statement The bank client must be able to deposit an amount & withdraw an amount from his account using the screen at the ATM kiosk Each transaction step must be recorded, the client must be able to view all the transactions. Khi u khim tn t mt cng ty dc phm nh nm 1947, hin nay, Umeken nghin cu, pht trin v sn xut hn 150 thc phm b sung sc khe. can help us identify classes. we may choose to place certain class and objects together in the same module or in different modules, depending upon the sameness in the declarations Classification also plays a role in allocating processes to procedures depending upon packing, performance, or reliability concerns 4, Classification A class is a specification of structure, behavior and description of an object. Iterate & refine 8. Offers a high-level view Determine what object are needed for the scenario to occur. Copyright 2022 All Rights Reserved by McqMate, Electronics and Communication Engineering, Electronics and Telecommunication Engineering, software design modeling (SDM) solved MCQs. Password 44, REVIEWING THE POSSIBLE ATTRIBUTES : Account balance Amount Atm card Bank client Checking account Clients account Amount : A value, not a class. 0000001248 00000 n Account Balance : An attribute of the Account class. Password Pin Invalid PIN : It is only a value, Pin code not a class. Concept class Events class Organisation class People class Places class Tangible things & devices class 51, COMMON CLASS PATTERNS APPROACH 1. It is a database of the accounts and transactions 55, Ex: common class approach 3. Date Account-Transaction* trans. an adjective can suggest a different kind of object, different use of the same object, or it could be utterly irrelevant. TANGIBLE AND DEVICE CLASS This class includes physical objects or groups of objects that are tangible and devices with which the application interacts. List the nouns. DEVELOP A SIMPLE PROCESS MODEL design 6. use-case modeling is considered as a problem-driven approach to object-oriented analysis, problem-driven : the designer first considers the problem at hand data-driven : first the relationship between objects is considered 58, Method Use case driven approach Develop at least one scenario for a significantly different use-case. PDF's for offline use. We take free online Practice/Mock test for exam preparation. Each MCQ is open for further discussion on discussion page. All the services offered by McqMate are free. Item. CLASSIFICATION 1. Assign responsibilities. 30, Class Generalization Class Generalization Represent a relation between a parent (a more abstract class) and a child (a more specific class) Generally referred to as a is-a-kind-of relationship Child objects may be used instead of parent objects since they share attributes and operations; the opposite is not true Shape Rectangle Square 31, Class Association Class Association Represent a structural relationship between class objects and may be used to navigate between connected objects Association can be binary, between two classes, or n-ary, among more than two classes Can include association name, direction, role names, Shape canvas Source 0. .

Account balance Amount Atm card Bank client Checking account Clients account Four digits Invalid PIN Message Password Pin code Record Savings account System Transaction history 40, Reviewing the redundant classes and building a common vocabulary review the candidate list to see which classes are redundant. -- methods 5. Transitivity: The property where, if A is part of B and B is part of C, then A is part of C. for example, a carburetor is part of an engine and an engine is part of a car; therefore, a carburetor is part of a car. Graw Hill. In addition object type provides an index for system process. 0000004747 00000 n Object-oriented system modelling using CRC method gives. A physical whole encompasses but is not constructed from physical parts. If an adjective suggests a different kind of class or the class represented by the noun behaves differently when the adjective is applied to it, then make a new class. Use activity diagram 3. This pattern is. 3. Transaction() Checking. Container. Checking A/c and Savings A/c both are types of accounts. Models a more specific analysis Assists in the design of system by modeling the interactions between objects Developing sequence diagrams requires us to think about the objects that generate the events and therefore helps 59 identify the classes, Checking account use cases <> Bank ATM transaction Deposit amount <> Withdraw amount Deposit checking <> Withdraw checking Bank client Withdraw more From checking <> Withdraw saving 60, Bank client ATM Machine Account Checking a/c Insert ATM Card Request PIN Enter PIN Verify PIN OK Request kind Enter kind Request amount Enter Amount Dispense cash Request take cash Process transaction Transaction successful Withdraw checking amount Withdraw successful take cash Request continuation Terminate Print Receipt 61, Use case driven approach The following classes are identified Bank. Trong nm 2014, Umeken sn xut hn 1000 sn phm c hng triu ngi trn th gii yu thch. 5, Classes notations In the context of the Work. Does it provide a useful abstraction in dealing with the problem domain? Problem statement The bank client must be able to deposit an amount & withdraw an amount from his account using the screen at the ATM kiosk Each transaction step must be recorded, the client must be able to view all the transactions. They can be defined as specializations of the Account class. Time trans. -------- (subclass) Transaction deposit withdraw get. Hb``e``AXX84:2. INTERACTION DIAGRAM 1. Example: handling, interrupt, request and order are possible events Billing 52, COMMON CLASS PATTERNS APPROACH 3.