Ppt on design patterns in java

Chapter 1: Introduction

future problems (for example, changing requirements) Experts do not solve every problem from first principles They reuse solutions that have worked for them in the past Goal for the software engineer: Design the software to be reusable across application domains and designs How? Use design patterns and frameworks whenever possible Design Patterns and Frameworks A small set of classes that provide a template solution to a recurring/


DESIGN PATTENS - OBSERVER PATTERN By, Srinivas Reddy.S www.JAVA9S.com.

Observable object changes, all the observers will notified and updated automatically. www.JAVA9S.com Design – Observer pattern > Observable registerObserver() removeObserver() notifyObservers() > Observer update() ObservableImplementation registerObserver(){...} removeObserver(){...} /should have a reference to Observable www.JAVA9S.com Code – Example www.JAVA9S.com Javas build in Observer pattern java.util.Observable java.util.Observer A concrete class Issues: Observable is a concrete class and due to which/


Bernd Bruegge & Allen H. Dutoit Object-Oriented Software Engineering: Using UML, Patterns, and Java 1 Reminders  First project report due today 14:00.

model, system decomposition, and subsystem interfaces  Examples: Analysis Review, System Design Review  Scheduled around project milestones and deliverables Client Review: Focus on requirements  Objective: Brief client, agree on requirements changes  Client Review  Usually scheduled after analysis phase Bernd Bruegge & Allen H. Dutoit Object-Oriented Software Engineering: Using UML, Patterns, and Java 11 Client  In the next project meeting of your group, assign one member/


Chapter 8, Object Design: Design Patterns II Using UML, Patterns, and Java Object-Oriented Software Engineering.

execute() ChessMove execute() Move execute() Match * replay() play() Bernd Bruegge & Allen H. Dutoit Object-Oriented Software Engineering: Using UML, Patterns, and Java 13 Applying the Command design pattern to Replay Matches in ARENA replay() «binds» play() TicTacToeMoveChessMove Move execute() Match * GameBoard nextMove() ReplayedMatch previousMove() Observer Pattern Motivation Problem: We have an object that changes its state quite often Example: A Portfolio of stocks We want to/


Chapter 8, Object Design Reuse and Patterns II Using UML, Patterns, and Java Object-Oriented Software Engineering.

only a driver VIP Subsystem AIM Card SA/RT Seat Vehicle Subsystem API Bernd Bruegge & Allen H. Dutoit Object-Oriented Software Engineering: Using UML, Patterns, and Java 20 Design Patterns encourage reusable Designs  A facade pattern should be used by all subsystems in a software system. The façade defines all the services of the subsystem.  The facade will delegate requests to the appropriate components within the/


Programming With Java ICS201 University Of Hail1 Chapter 12 UML and Patterns.

a general problem Introduction to Patterns Programming With Java ICS201 Design Patterns Patterns capture solutions to particular design problems. They provide for the reuse of successful designs. A design pattern is like a template that can be applied in many different situations. A design pattern provides an abstract description of a design problem and how a general arrangement of elements (classes and objects) solves it. Programming With Java ICS201 Design Pattern A design pattern is a general reusable/


Using UML, Patterns, and Java Object-Oriented Software Engineering Object Design I: Reuse.

objects, reconsider the number of subsystems Interface objects vs Java interface: Interface object: Used during requirements analysis, system design, object design. Denotes a service or API Java interface: Used during implementation in Java (May or may not implement an interface object). Bernd Bruegge & Allen H. Dutoit Object-Oriented Software Engineering: Using UML, Patterns, and Java 77 Summary Object design closes the gap between the requirements and the machine Object/


Using UML, Patterns, and Java Object-Oriented Software Engineering Chapter 10, Mapping Models to Code.

Design Model Mapping Associations  Mapping Contracts to Exceptions  Mapping Object Models to Tables Bernd Bruegge & Allen H. Dutoit Object-Oriented Software Engineering: Using UML, Patterns, and Java 27 Exceptions as building blocks for contract violations  Many object-oriented languages, including Java do not include built-in support for contracts.  However, we can use their exception mechanisms as building blocks for signaling and handling contract violations  In Java/


Bernd Bruegge & Allen H. Dutoit Object-Oriented Software Engineering: Using UML, Patterns, and Java 1 Introduction to Software Engineering CEN 4010.

software platform, data management, control flow, and security.  Output: model describing subsystem decomposition and system strategies. Bernd Bruegge & Allen H. Dutoit Object-Oriented Software Engineering: Using UML, Patterns, and Java 23 Software Development Object Design  Bridges the gap between analysis model and the strategies identified in the system design. Includes:  describing object and subsystem interfaces,  selecting off –the-shelf components,  Restructure object model to attain/


1 CENG 217 Object Oriented Design Lecture 5 Doç. Dr. Halûk Gümüşkaya / Computing Engineering.

classes implement same interface type. 4.When implementing a method from the interface type, the composite class applies the method to its primitive objects and combines the results 93 Composite Pattern Example in Java Name in Design PatternActual Name (AWT components) PrimitiveComponent CompositeContainer Leafa component without children (e.g. JButton) method()a method of Component (e.g.getPreferredSize) 94 1.The ITERATOR as a/


Using UML, Patterns, and Java Object-Oriented Software Engineering Chapter 15, Software Life Cycle.

is applied to a couple of so- called rounds. Spiral Model Bernd Bruegge & Allen H. Dutoit Object-Oriented Software Engineering: Using UML, Patterns, and Java 19 Rounds in Boehm’s Spiral Model Concept of Operations Software Requirements Software Product Design Detailed Design Code Unit Test Integration and Test Acceptance Test Implementation For each round go through these activities: Define objectives, alternatives, constraints Evaluate alternatives, identify/


Using UML, Patterns, and Java Object-Oriented Software Engineering Art for Chapter 11, Testing.

From ODD Management plan Test planning User interface design Usability test From RAD Continued on next slide Bernd Bruegge & Allen H. Dutoit Object-Oriented Software Engineering: Using UML, Patterns, and Java 3 Figure 11-1 (continued from previous slide/Engineering: Using UML, Patterns, and Java 23 Figure 11-26, Example of a PERT chart for a schedule of the sandwich tests shown in Figure 9-19. Bernd Bruegge & Allen H. Dutoit Object-Oriented Software Engineering: Using UML, Patterns, and Java 24 Figure 11-27/


Using UML, Patterns, and Java Object-Oriented Software Engineering Chapter 10, Mapping Models to Code.

operations have fewer arguments than others: Use overloading (Possible in Java)  Similar attributes in the classes have different names: Rename attribute and change all the operations.  Operations defined in one class but no in the other: Use virtual functions and class function overriding.  Superclasses are desirable. They  increase modularity, extensibility and reusability  improve configuration management  Many design patterns use superclasses  Try to retrofit an existing model to/


Chapter 8, Object Design: Design Patterns II Using UML, Patterns, and Java Object-Oriented Software Engineering.

“Delegation followed by inheritance”. Bernd Bruegge & Allen H. Dutoit Object-Oriented Software Engineering: Using UML, Patterns, and Java 32 Taxonomy of Design Patterns (23 Patterns) Bernd Bruegge & Allen H. Dutoit Object-Oriented Software Engineering: Using UML, Patterns, and Java 33 Facade Pattern Provides a unified interface to a set of classes in a subsystem A façade consists of a set of public operations Each public operation is delegated/


Java Design Patterns 1 DEPARTMENT OF COMPUTER SCIENCE AND SOFTWARE ENGINEERING CONCORDIA UNIVERSITY Emil Vassev, Joey Paquet : 2006-2012.

development problems. :: What is a Design Pattern? Java Design Patterns 4 Design Patterns In general, a pattern has four essential elements.  The pattern name  The problem  The solution  The consequences :: Pattern’s Elements – Pattern Name Java Design Patterns 5 Design Patterns The pattern name is a handle we can use to describe a design problem, its solutions, and consequences in a word or two.  Naming a pattern immediately increases the design vocabulary. It lets us design at a higher level of/


Using UML, Patterns, and Java Object-Oriented Software Engineering Chapter 1: Introduction.

problem from first principles  They reuse solutions that have worked for them in the past  Goal for the software engineer:  Design the software to be reusable across application domains and designs  How?  Use design patterns and frameworks whenever possible Bernd Bruegge & Allen H. Dutoit Object-Oriented Software Engineering: Using UML, Patterns, and Java 53 Design Patterns and Frameworks  Design Pattern:  A small set of classes that provide a template solution to/


Using UML, Patterns, and Java Object-Oriented Software Engineering Chapter 4 Requirements Elicitation.

.bloomberg.com/apps/news?pid=conewsstory&refer=conews &tkr=FDX:US&sid=aY4IqhBRcytA 60 Bernd Bruegge & Allen H. Dutoit Object-Oriented Software Engineering: Using UML, Patterns, and Java Additional Readings Scenario-Based Design John M. Carrol, Scenario-Based Design: Envisioning Work and Technology in System Development, John Wiley, 1995 Usability Engineering: Scenario-Based Development of Human Computer Interaction, Morgan Kaufman, 2001 David Parnas A rational/


Using UML, Patterns, and Java Object-Oriented Software Engineering Chapter 8, Object Design: Reuse and Patterns.

objects, reconsider the number of subsystems Interface objects vs Java interface: Interface object: Used during requirements analysis, system design, object design. Denotes a service or API Java interface: Used during implementation in Java (May or may not implement an interface object). Bernd Bruegge & Allen H. Dutoit Object-Oriented Software Engineering: Using UML, Patterns, and Java 81 Summary Object design closes the gap between the requirements and the machine Object/


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+ Documentation generated from model = Documentation always accurate! Together® generates HTML RTF TXT PDF Custom template designer Together® Design Pattern Support Reuse existing, trusted solutions Gang of Four (GoF) patterns Sun Java Center J2EE™ patterns Your own custom patterns! Get Relaxed! Shall We Take a Break? We’ll have more fun in a minute! Together For.NET C#Builder 和 MDA Summary - ALM Your competition may be fierce Summary - ALM/


Using UML, Patterns, and Java Object-Oriented Software Engineering Chapter 7 System Design: Addressing Design Goals.

: Message based system, RMI Possible speedup by mapping the objects on different processors, increased communication overhead. Bernd Bruegge & Allen H. Dutoit Object-Oriented Software Engineering: Using UML, Patterns, and Java 37 Centralized vs. Decentralized Designs Centralized Design One control object or subsystem ("spider") controls everything Pro: Change in the control structure is very easy Con: The single control object is a possible performance bottleneck Decentralized/


Using UML, Patterns, and Java Object-Oriented Software Engineering System Design I: System Decomposition.

subsystem interface Subsystem interface objects can be realized with the Façade pattern (=> lecture on design patterns). Bernd Bruegge & Allen H. Dutoit Object-Oriented Software Engineering: Using UML, Patterns, and Java 17 Coupling and Coherence of Subsystems Goal: Reduce system complexity while allowing change Coherence measures dependency among classes High coherence: The classes in the subsystem perform similar tasks and are related to each other via/


Using UML, Patterns, and Java Object-Oriented Software Engineering System Design: Decomposing the System.

() Subsystem Interface of Notification Subsystem Set of fully typed UML operations Left as an Exercise API of Notification Subsystem Implementation in Java Left as an Exercise. Bernd Bruegge & Allen H. Dutoit Object-Oriented Software Engineering: Using UML, Patterns, and Java 14 Subsystem Interface Object Good design: The subsystem interface object describes all the services of the subsystem interface Subsystem Interface Object The set of public/


Bernd Bruegge & Allen H. Dutoit Object-Oriented Software Engineering: Using UML, Patterns, and Java 1 Outline of the Lecture  Patterns covered  Composite:

only a driver VIP Subsystem AIM Card SA/RT Seat Vehicle Subsystem API Bernd Bruegge & Allen H. Dutoit Object-Oriented Software Engineering: Using UML, Patterns, and Java 21 Design Patterns encourage reusable Designs  A facade pattern should be used by all subsystems in a software system. The façade defines all the services of the subsystem.  The facade will delegate requests to the appropriate components within the/


Using UML, Patterns, and Java Object-Oriented Software Engineering Chapter 3, Project Organization and Communication.

UML, Patterns, and Java 5  “In fact, both of them had.” Box 1Box 2 Bernd Bruegge & Allen H. Dutoit Object-Oriented Software Engineering: Using UML, Patterns, and Java 6 Communication is important In large system/: Using UML, Patterns, and Java 12 Planned Communication Events (continued) Release  Objective: Baseline the result of each software development activity  Software Project Management Plan (SPMP)  Requirements Analysis Document (RAD)  System Design Document (SDD)  Object Design Document (ODD) /


CS 210 Introduction to Design Patterns September 7 th, 2006.

push or pull with observer pattern Java has several implementations of observer patternin util, swing, javabeans and RMI Swing makes heavy use of this pattern Summary so far.. OO Basics Encapsulation Inheritance Polymorphism OO Principles Encapsulate what varies Favor composition over inheritance Program to interfaces not to implementations Strive for loosely coupled designs between objects that interact OO Patterns The Observer Pattern defines a one-to-many/


Bernd Bruegge & Allen H. Dutoit Object-Oriented Software Engineering: Using UML, Patterns, and Java 1.

applying implementation domain knowledge Bernd Bruegge & Allen H. Dutoit Object-Oriented Software Engineering: Using UML, Patterns, and Java 40 Another Source for Finding Objects : Design Patterns What are Design Patterns? The recurring aspects of designs are called design patterns [Gamma et al 1995]. A pattern is the outline of a reusable solution to a general problem encountered in a particular context. It describes the core of the solution to that problem/


Using UML, Patterns, and Java Object-Oriented Software Engineering Chapter 6 System Design: Decomposing the System.

. Functionality  Cost vs. Reusability  Backward Compatibility vs. Readability Bernd Bruegge & Allen H. Dutoit Object-Oriented Software Engineering: Using UML, Patterns, and Java 18 Nonfunctional Requirements may give a clue for the use of Design Patterns  Read the problem statement again  Use textual clues (similar to Abbot’s technique in Analysis) to identify design patterns  Text: “manufacturer independent”, “device independent”, “must support a family of products”  Abstract Factory/


Using UML, Patterns, and Java Object-Oriented Software Engineering Chapter 12, Rationale Management.

of time.  Evolving assumptions  Legacy decisions  Conflicting criteria -> high maintenance cost -> loss & rediscovery of information Bernd Bruegge & Allen H. Dutoit Object-Oriented Software Engineering: Using UML, Patterns, and Java 7 Uses of rationale in software engineering  Improve design support  Avoid duplicate evaluation of poor alternatives  Make consistent and explicit trade-offs  Improve documentation support  Makes it easier for non developers (e.g., managers, lawyers/


Using UML, Patterns, and Java Object-Oriented Software Engineering Chapter 10, Mapping Models to Code.

context of new technology (technology enablers) Bernd Bruegge & Allen H. Dutoit Object-Oriented Software Engineering: Using UML, Patterns, and Java 56 Specifying Interfaces The players in object design: Class User Class Implementor Class Extender Object design: Activities Adding visibility information Adding type signature information Adding contracts Detailed view on Design patterns Combination of delegation and inheritance Bernd Bruegge & Allen H. Dutoit Object-Oriented Software Engineering: Using UML/


Using UML, Patterns, and Java Object-Oriented Software Engineering Chapter 7, System Design: Addressing Design Goals.

ControlImplicit Control Rule-based Control Logic Programming Event-based Control Procedural Control. Centralized Control Decentralized Control Bernd Bruegge & Allen H. Dutoit Object-Oriented Software Engineering: Using UML, Patterns, and Java 43 Centralized vs. Decentralized Designs Centralized Design One control object or subsystem ("spider") controls everything Pro: Change in the control structure is very easy Con: The single control object is a possible performance bottleneck Decentralized/


Using UML, Patterns, and Java Object-Oriented Software Engineering Chapter 8, Object Design: Reuse and Patterns.

objects, reconsider the number of subsystems Interface objects vs Java interface: Interface object: Used during requirements analysis, system design, object design. Denotes a service or API Java interface: Used during implementation in Java (May or may not implement an interface object). Bernd Bruegge & Allen H. Dutoit Object-Oriented Software Engineering: Using UML, Patterns, and Java 62 Summary Object design closes the gap between the requirements and the machine Object/


Bernd Bruegge & Allen H. Dutoit Object-Oriented Software Engineering: Using UML, Patterns, and Java 1 Proxy Pattern: Motivation  It is 15:00pm. I am.

update() Bernd Bruegge & Allen H. Dutoit Object-Oriented Software Engineering: Using UML, Patterns, and Java 16 Observer pattern implementation in Java // import java.util; public class Observable extends Object { public void addObserver(Observer o); public void/ created and put together Bernd Bruegge & Allen H. Dutoit Object-Oriented Software Engineering: Using UML, Patterns, and Java 28 Conclusion  Design patterns  Provide solutions to common problems.  Lead to extensible models and code.  Can be used/


Software Engineering Design Patterns. Singleton Single instance of class Constructor is private static final Class instance constructed when application.

Software Engineering Design Patterns Singleton Single instance of class Constructor is private static final Class instance constructed when application loads or loaded only when need (lazy initialization) Examples of usage –to access database so that all threads go through one control point –Font class keeps memory load low Singleton Example in Java public class DbaseConnector { private static final DbaseConnector instance=new DbaseConnector(); private DbaseConnector() { // database/


Using UML, Patterns, and Java Object-Oriented Software Engineering Chapter 1: Introduction.

problem from first principles  They reuse solutions that have worked for them in the past  Goal for the software engineer:  Design the software to be reusable across application domains and designs  How?  Use design patterns and frameworks whenever possible Bernd Bruegge & Allen H. Dutoit Object-Oriented Software Engineering: Using UML, Patterns, and Java 40 Design Patterns and Frameworks  Design Pattern:  A small set of classes that provide a template solution to/


Using UML, Patterns, and Java Object-Oriented Software Engineering Chapter 9, Object Design: Specifying Interfaces.

Information Hiding Contracts Bernd Bruegge & Allen H. Dutoit Object-Oriented Software Engineering: Using UML, Patterns, and Java 10 Requirements Analysis vs. Object Design Requirements Analysis: The functional model and the dynamic model deliver operations for the object model Object Design: Decide where to put these operations in the object model Object design is the process of adding details to the requirements analysis making implementation decisions Thus/


Using UML, Patterns, and Java Object-Oriented Software Engineering Chapter 8, Object Design: Introduction to Design Patterns.

implementation domain knowledge Bernd Bruegge & Allen H. Dutoit Object-Oriented Software Engineering: Using UML, Patterns, and Java 6 Another Source for Finding Objects : Design Patterns What are Design Patterns? A design pattern describes a problem which occurs over and over again in our environment Then it describes the core of the solution to that problem, in such a way that you can use the this solution a million times over/


Using UML, Patterns, and Java Object-Oriented Software Engineering Chapter 11, Testing, Part 2: Integration and System Testing.

fix bugs. Beta test: Conducted at client’s environment (developer is not present) Software gets a realistic workout in target environ- ment Bernd Bruegge & Allen H. Dutoit Object-Oriented Software Engineering: Using UML, Patterns, and Java 39 Testing has many activities Establish the test objectives Design the test cases Write the test cases Test the test cases Execute the tests Evaluate the test results/


S ystem P rogrammers A ssociation for R esearching C omputer S ystems Design Pattern Study KAIST 2007. 4. 9.

P rogrammers A ssociation for R esearching C omputer S ystems What is Design Pattern? Pattern 의 구성요소 –Pattern Name 일종의 vocabulary 같은 것 –Problem Pattern 을 적용할 대상 –Solution Design, relationships, consequences, responsibilities of elements Template 과 같아서 구체적인 (specific) 해답을 제시하지는 않음 –Consequences Pattern 적용 결과 Trade-offs Descriptions of communicating objects and classes that are customized to solve a general design problem in a particular context S ystem P rogrammers A ssociation for R esearching C omputer/


Using UML, Patterns, and Java Object-Oriented Software Engineering Chapter 1: Introduction.

problem from first principles  They reuse solutions that have worked for them in the past  Goal for the software engineer:  Design the software to be reusable across application domains and designs  How?  Use design patterns and frameworks whenever possible Bernd Bruegge & Allen H. Dutoit Object-Oriented Software Engineering: Using UML, Patterns, and Java 45 Design Patterns and Frameworks  Design Pattern:  A small set of classes that provide a template solution to/


Using UML, Patterns, and Java Object-Oriented Software Engineering More on UML Note: Slides are adapted by Linda Sherrell from the Software Engineering.

Button ZoneButtonCancelButton Bernd Bruegge & Allen H. Dutoit Object-Oriented Software Engineering: Using UML, Patterns, and Java 9 Object Modeling in Practice: A Banking System Account Betrag Deposit() Withdraw() GetBalance() Customer Name CustomerId AccountId/ Engineering: Using UML, Patterns, and Java 13 UML sequence diagrams  Used during requirements analysis  To refine use case descriptions  to find additional objects (“participating objects”)  Used during system design  to refine subsystem /


1. 2 Catalogues of security patterns record object-oriented design practices that have proved to promote security. Our research project facilitates making,

36 (Eden, Gasparis, Nicholson & Kazman, forthcoming) 37 38 Java 3D 39 Java 3D 40 Java 3D 41 Java 3D Successf ul 42 www.lepus.org.uk 43 Factory Method in Java 3D (structural conformance to) Java 3D Implements Factory Method 44 Careless change 45 46 Package java.util.logging 47 48 The Factory Method design pattern The Factory Method design pattern 48 Factory Method pattern Symbolically (Schema) Visually (Codechart) Textually( XML) 49 50/


Bridge Bridge is used when we need to decouple an abstraction from its implementation so that the two can vary independently. This type of design pattern.

design pattern comes under structural pattern as this pattern decouples implementation class and abstract class by providing a bridge structure between them. This pattern/ This interface doesnt have to correspond exactly to Abstractions interface; in fact the two interfaces can be quite different. Typically the /); } Step 5 Use the Shape and DrawAPI classes to draw different colored circles. BridgePatternDemo.java public class BridgePatternDemo { public static void main(String[] args) { Shape redCircle = new /


Using UML, Patterns, and Java Object-Oriented Software Engineering Chapter 10, Mapping Models to Code.

Transformations Source code space Forward engineering Refactoring Reverse engineering Model space Model transformation System Model (in UML) Another System Model Program (in Java) Another Program Yet Another System Model Bernd Bruegge & Allen H. Dutoit Object-Oriented Software Engineering: Using UML, Patterns, and Java 6 Model Transformation Example Object design model before transformation: Object design model after transformation: Advertiser +email:Address Player +email:Address LeagueOwner +email:Address/


Reference – Object Oriented Software Development Using Java - Jia COP 3331 Object Oriented Analysis and Design Chapter 10 – Patterns Jean Muhammad.

parallels the class hierarchy of products. Reference – Object Oriented Software Development Using Java - Jia Prototype Design Pattern Participants in the Prototype Pattern: – Prototype:which defines interfaces of objects to be created – ConcretePrototype: Implements/later – Actions may need to be undone Reference – Object Oriented Software Development Using Java - Jia Command Design Pattern Participants in the Command Design Pattern: – Command: Defines an interface to perform or undo an action – Receiver:/


DA-YEH University CSIE Pattern-Oriented Design The Dynamic Mapping Design Pattern Author : J. Gresh J. McKim J. McKim H. Sanchez H. Sanchez Excerpt From.

Factory for a specific action. Known Uses Can be used in association with Factory patterns and Controller patterns. Can be used in association with Factory patterns and Controller patterns. 23 Outline Overview Introducing the Dynamic Mapping Pattern Learning the Dynamic Mapping Pattern: An Example An Observation About Using Design Patterns Learning the Dynamic Mapping Pattern: Deriving It Field Notes: Using the Dynamic Mapping Pattern Summary 24 Field Notes: Using the Dynamic Mapping/


Using UML, Patterns, and Java Object-Oriented Software Engineering Chapter 1: Introduction.

problem from first principles  They reuse solutions that have worked for them in the past  Goal for the software engineer:  Design the software to be reusable across application domains and designs  How?  Use design patterns and frameworks whenever possible Bernd Bruegge & Allen H. Dutoit Object-Oriented Software Engineering: Using UML, Patterns, and Java 44 Design Patterns and Frameworks  Design Pattern:  A small set of classes that provide a template solution to/


Using UML, Patterns, and Java Object-Oriented Software Engineering Chapter 2, Modeling with UML, Part 1.

, and interfaces to satisfy client needs and desires. Bernd Bruegge & Allen H. Dutoit Object-Oriented Software Engineering: Using UML, Patterns, and Java 20 20 Software Engineering Design Requires skills in programming, algorithms, data structures, software design principles, practices, processes, techniques, architectures, and patterns Software engineering design is the activity of specifying programs and sub-systems, and their constituent parts and workings, to meet software product specifications. Bernd/


Using UML, Patterns, and Java Object-Oriented Software Engineering Chapter 15, Software Life Cycle.

is applied to a couple of so- called rounds. Spiral Model Bernd Bruegge & Allen H. Dutoit Object-Oriented Software Engineering: Using UML, Patterns, and Java 34 Rounds in Boehm’s Spiral Model Concept of Operations Software Requirements Software Product Design Detailed Design Code Unit Test Integration and Test Acceptance Test Implementation For each round go through these activities: Define objectives, alternatives, constraints Evaluate alternatives, identify/


Using UML, Patterns, and Java Object-Oriented Software Engineering Chapter 6 System Design: Decomposing the System.

Subsystem LookupChannel() SubscribeToChannel() SendNotice() UnscubscribeFromChannel() Subsystem Interface of Notification Subsystem Set of fully typed UML operations API of Notification Subsystem Implementation in Java Bernd Bruegge & Allen H. Dutoit Object-Oriented Software Engineering: Using UML, Patterns, and Java 17 Subsystem Interface Object Good design: The subsystem interface object describes all the services of the subsystem interface Subsystem Interface Object The set of public operations provided/


Using UML, Patterns, and Java Object-Oriented Software Engineering Chapter 7, System Design: Addressing Design Goals.

ControlImplicit Control Rule-based Control Logic Programming Event-based Control Procedural Control. Centralized Control Decentralized Control Bernd Bruegge & Allen H. Dutoit Object-Oriented Software Engineering: Using UML, Patterns, and Java 43 Centralized vs. Decentralized Designs Centralized Design One control object or subsystem ("spider") controls everything Pro: Change in the control structure is very easy Con: The single control object is a possible performance bottleneck Decentralized/


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