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Domain model

The document discusses domain modeling. It defines a domain model as a structural model showing the basic concepts and relationships in a domain. It describes the key components of a domain model including conceptual classes, attributes, associations, multiplicity, aggregation, composition, generalization and roles. The document provides an example domain model for a video rental shop showing customers who can buy or rent movies, and rent specific rental copies with attributes like due dates. It models members who get discounts and can reserve rentals, and includes reviews customers can provide.

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Presenters: Iqra Azam(10-arid-300) Ayesha Saeed(10-arid-282) BSIT(7-A)
Define Domain Model  How to develop Domain Model  Features of Domain Model  Example of Domain Model  Reference 
 Structural model of basic domain concepts and their relationships  It may show:  domain objects or conceptual classes  associations between conceptual classes  attributes Also called conceptual models, domain object models, and analysis object models.
 Identify conceptual classes  Draw them as in a UML domain model  Add associations necessary to record relationship  Add the attributes necessary to fulfill the information requirements
Domain classes  Attributes  Associations  Multiplicity  Aggregation  Composition  Generalization  Roles 
Each domain class denotes a type of object  Consider a use case description 
 Attributes refer to properties that define the class. For Example A class Client will have attributes name, id and address. Sale date startTim e : Tim e attrib utes
   public level protected level private level + # - Circle - centreX:Int + centreY:Int=0 9
A link between two classes  A Person works for a Company.  Association Company Person works for Association Name 10
Derived association  Qualified Association  Association classes 
Derived association exist automatically once we have implement the main association  / in front of its name  Black triangle indicate direction  Company Person / works for
 Contain index , array 1 9 Board Board Square 1 Row:{1,2,3} Col:{1,2,3 } 1 Square
 Describes how many instances of one concept can be associated with one instance of the related concept.
A Student can take up to five Courses.  Student has to be enrolled in at least one course.  Up to 300 students can enroll in a course.  A class should have at least 10 students.  Student 10..300 takes Course 1..5 16
“Has a”  A special form of association that models a whole-part relationship  Weak association  Part Whole Schedule Student Aggregation
“Own a”  A strong form of aggregation where components cannot exist without the aggregate.  The parts cannot survive the whole/aggregate  Part Whole Schedule Student Composition
Button CancelButton Zone Button The children classes inherit the attributes of the parent class.  Eliminating redundancy.  Generalize/specialize 
 Each end of an association is called a role.  Roles may have: Name multiplicity expression Navigability   
Show who is dominant  Put an arrow on one end of association  Is taking Student 1..* Module 6
We first analyze the stated domain model requirements and then present the domain model.  The system must be able to keep track of which movie videos have been bought/rented and by whom. classes & associations: customer Buys movie video; customer Rents movie video  For videos bought, the system must record the quantity bought; for videos rented, the system must record which copy of the video has been rented and when it is due back. classes & associations: customer Rents movie video; –> movie video Has rental copy; customer Rents rental copy; Attributes : Buys –> quantity; Rentalcopy -> copyNumber, dateDue
 The system must keep track of overdue rental videos and allow notices to be sent to customers who have videos overdue. functional requirement: no new domain model requirements in this statement  The video shop will have a customer membership option for an annual fee, which will entitle the member to discounts (10%) on video sales and rentals. generalization: Member is a kind of Customer Member Specializes Customer
 Members should be able to make reservations for movie video rentals either in person at the store, by telephone or via the Web. ◦ classes & associations: Member Reserves Rentalcopy  A member can reserve at most five movie videos at any one time, but there is no limit on how many movie videos a member or nonmember can rent at any one time. ◦ constraint: max-card(rental copy, Reserves) = 5 ◦ max-card(rental copy, Rents) = *
 As an added feature, the video shop would like to allow customers (either members or nonmembers) to input, via the Web, mini-reviews (up to 100 words) and a rating (from 1, lowest, to 5, highest) of movies they have rented. classes & associations: Customer Provides review IsFor Movie Video –> Customer Provides Review; MovieVideo Has Review attributes: Review –> review text, rating
 These reviews should be anonymous if the customer so wishes (i.e., the customer can specify whether or not he wants his name to be made known when other customers browse the reviews). Attributes: Review –> anonymous  The video shop maintains the following information about all customers (members or nonmembers): name, address, phone number, fax number, age, sex, and email address ◦ Attributes : Customer–> name, address, ◦ phoneNumber, faxNumber, age, gender, email;
 In addition, members are assigned a membership number by the video shop when they become members and a password, which allows them to access the member's only area of the video shop's web site, including accessing and changing their personal information. attributes: Member –>memberNumber, password  An employee must be able to enter the basic information about a movie video (i.e., title, leading actor(s), director, producer, genre, synopsis, release year, running time, selling price, and rental price). attributes: MovieVideo –> title, leadingActor[0..*], director, producer, genre, synopsis, releaseYear, runningTime, sellingPrice, rentalPrice
* Has 1 MovieVideo 0..* RentalCopy 1 * HasReview 0..5 Rents Reserves * Review * Provides 1 1 Customer * Buys quantity Member 0..1
MovieVideo * title leadingActor [0..*] director producer genre synopsis releaseYear runningTime sellingPrice rentalPrice RentalCopy 1 Has 0..* copyNumber dateDue 0..5 * Rents 1 1 HasReview Customer * name address phoneNumber faxNumber age gender email Review reviewText rating anonymous * Provides 1 Reserves * Buys quantity Member memberNumber password 0..1
 http://users.encs.concordia.ca/~gregb/home/PPT/0035- domain-modeling1.ppt  http://cse.spsu.edu/sduggins/classes/Spring %202013/SWE%204743/Documents/Chapter%209.ppt  http://teacher.buet.ac.bd/shahin/INFORMATION %20SYSTEM%20ANALYSIS%20AND %20DESIGN/Larman%20Chapter%2010.ppt  http://www.comptechdoc.org/independent/uml/begin/um ldomainmodel.html
Domain model
Domain model