The document discusses class diagrams and object diagrams. It explains that a class diagram shows the structure of a system by displaying classes, interfaces, and their relationships, while an object diagram shows specific instances of classes at a point in time. The document provides steps for constructing class diagrams, such as identifying classes and relationships. It also discusses how object diagrams are created based on class diagrams by instantiating classes and depicting their relationships.
The document discusses key concepts in Java including classes, objects, methods, and command line arguments. A class defines common properties and behaviors for objects through fields and methods. Objects are instantiated from classes and can access fields and methods using dot notation. Command line arguments allow passing data into a Java application and are accessed through the args parameter in the main method.
UML (Unified Modeling Language) is a standard language for specifying, visualizing, and documenting models of software systems. The document discusses the history and evolution of UML, provides definitions and examples of various UML diagram types including class, object, use case, state, activity, sequence, and others. It also explains how UML diagrams can be used to model different views of a system, such as structural relationships and dynamic behavior over time.
Object oriented analysis emphasizes investigating the problem domain to identify relevant objects and their relationships. The key goals are to define relevant classes and their attributes, operations, relationships, and behaviors through iterative refinement. Various analysis methods take different approaches, but generally involve use case modeling, class modeling, and behavior modeling.
Architecture design in software engineeringPreeti Mishra
The document discusses software architectural design. It defines architecture as the structure of a system's components, their relationships, and properties. An architectural design model is transferable across different systems. The architecture enables analysis of design requirements and consideration of alternatives early in development. It represents the system in an intellectually graspable way. Common architectural styles structure systems and their components in different ways, such as data-centered, data flow, and call-and-return styles.
This chapter discusses basic structural modeling in object oriented software engineering. It covers classes and relationships, common mechanisms, diagrams, and class diagrams, which are used to model the basic structure of a software system using objects and their interactions.
This document provides an introduction to the Unified Modeling Language (UML). It defines UML as a standard modeling language used to visualize, specify, construct and document software systems. The document outlines the basics of UML including common diagram types like use case diagrams, class diagrams and sequence diagrams. It also discusses modeling tools that support working with UML diagrams.
The document defines distributed and parallel systems. A distributed system consists of independent computers that communicate over a network to collaborate on tasks. It has features like no common clock and increased reliability. Examples include telephone networks and the internet. Advantages are information sharing and scalability, while disadvantages include difficulty developing software and security issues. A parallel system uses multiple processors with shared memory to solve problems. Examples are supercomputers and server clusters. Advantages are concurrency and saving time, while the main disadvantage is lack of scalability between memory and CPUs.
UML (Unified Modeling Language) is a diagramming language used for object-oriented programming. It can be used to describe the organization, execution, use, and deployment of a program. Design patterns describe common solutions to programming problems and always use UML diagrams. This document focuses on class diagrams, which show classes, interfaces, and their relationships. It provides examples of how to depict classes with variables and methods, and relationships between classes like inheritance.
The document discusses key concepts in Java including classes, objects, methods, and command line arguments. A class defines common properties and behaviors for objects through fields and methods. Objects are instantiated from classes and can access fields and methods using dot notation. Command line arguments allow passing data into a Java application and are accessed through the args parameter in the main method.
UML (Unified Modeling Language) is a standard language for specifying, visualizing, and documenting models of software systems. The document discusses the history and evolution of UML, provides definitions and examples of various UML diagram types including class, object, use case, state, activity, sequence, and others. It also explains how UML diagrams can be used to model different views of a system, such as structural relationships and dynamic behavior over time.
Object oriented analysis emphasizes investigating the problem domain to identify relevant objects and their relationships. The key goals are to define relevant classes and their attributes, operations, relationships, and behaviors through iterative refinement. Various analysis methods take different approaches, but generally involve use case modeling, class modeling, and behavior modeling.
Architecture design in software engineeringPreeti Mishra
The document discusses software architectural design. It defines architecture as the structure of a system's components, their relationships, and properties. An architectural design model is transferable across different systems. The architecture enables analysis of design requirements and consideration of alternatives early in development. It represents the system in an intellectually graspable way. Common architectural styles structure systems and their components in different ways, such as data-centered, data flow, and call-and-return styles.
This chapter discusses basic structural modeling in object oriented software engineering. It covers classes and relationships, common mechanisms, diagrams, and class diagrams, which are used to model the basic structure of a software system using objects and their interactions.
This document provides an introduction to the Unified Modeling Language (UML). It defines UML as a standard modeling language used to visualize, specify, construct and document software systems. The document outlines the basics of UML including common diagram types like use case diagrams, class diagrams and sequence diagrams. It also discusses modeling tools that support working with UML diagrams.
The document defines distributed and parallel systems. A distributed system consists of independent computers that communicate over a network to collaborate on tasks. It has features like no common clock and increased reliability. Examples include telephone networks and the internet. Advantages are information sharing and scalability, while disadvantages include difficulty developing software and security issues. A parallel system uses multiple processors with shared memory to solve problems. Examples are supercomputers and server clusters. Advantages are concurrency and saving time, while the main disadvantage is lack of scalability between memory and CPUs.
UML (Unified Modeling Language) is a diagramming language used for object-oriented programming. It can be used to describe the organization, execution, use, and deployment of a program. Design patterns describe common solutions to programming problems and always use UML diagrams. This document focuses on class diagrams, which show classes, interfaces, and their relationships. It provides examples of how to depict classes with variables and methods, and relationships between classes like inheritance.
The document discusses the key elements of the object model, including abstraction, encapsulation, modularity, and hierarchy. It explains that abstraction is one of the fundamental ways to cope with complexity in software design. Abstraction focuses on the essential characteristics of an object that distinguish it from other objects, from the perspective of the viewer. The object model provides a conceptual framework for object-oriented programming that is based on these elements.
UML (Unified Modeling Language) is a standard modeling language used to specify, visualize, and document software systems. It uses graphical notations to model structural and behavioral aspects of a system. Common UML diagram types include use case diagrams, class diagrams, sequence diagrams, and state diagrams. Use case diagrams model user interactions, class diagrams show system entities and relationships, sequence diagrams visualize object interactions over time, and state diagrams depict object states and transitions. UML aims to simplify the complex process of software design through standardized modeling.
Software design is a process through which requirements are translated into a ― blueprint for constructing the software.
Initially, the blueprint shows how the software will look and what kind of data or components will be required to in making it.
The software is divided into separately named components, often called ‘MODULES’, that are used to detect problems at ease.
This follows the "DIVIDE AND CONQUER" conclusion. It's easier to solve a complex problem when you break it into manageable pieces.
This document provides an overview of system modeling. It discusses that system modeling involves developing abstract models of a system from different perspectives, and is commonly done using the Unified Modeling Language (UML). It also describes various UML diagram types used in system modeling like use case diagrams, class diagrams, and state diagrams. Finally, it gives examples of modeling different views of a mental health case management system, including contextual models, interaction models, structural models, and behavioral models.
System Models in Software Engineering SE7koolkampus
The document discusses various types of system models used in requirements engineering including context models, behavioral models, data models, object models, and how CASE workbenches support system modeling. It describes behavioral models like data flow diagrams and state machine models, data models like entity-relationship diagrams, and object models using the Unified Modeling Language. CASE tools can support modeling through features like diagram editors, repositories, and code generation.
This document discusses implementation of inheritance in Java and C#. It covers key inheritance concepts like simple, multilevel, and hierarchical inheritance. It provides examples of inheritance in Java using keywords like extends, super, this. Interfaces are discussed as a way to achieve multiple inheritance in Java. The document also discusses implementation of inheritance in C# using concepts like calling base class constructors and defining virtual methods.
When a software program is modularized, there are measures by which the quality of a design of modules and their interaction among them can be measured. These measures are called coupling and cohesion.
This document discusses object-oriented analysis and design (OOAD) and the unified process. It introduces OOAD and the unified process framework, which includes inception, elaboration, construction, and transition phases. It also covers the unified modeling language (UML), including use case diagrams, class diagrams, and other diagram types. Specific topics covered include identifying actors and use cases, drawing associations and relationships between actors and use cases, class notation, and an example use case diagram for an alarm clock system.
This document discusses design patterns, beginning with how they were introduced in architecture in the 1950s and became popularized by the "Gang of Four" researchers. It defines what patterns are and provides examples of different types of patterns (creational, structural, behavioral) along with common patterns in each category. The benefits of patterns are that they enable reuse, improve communication, and ease the transition to object-oriented development. Potential drawbacks are that patterns do not directly lead to code reuse and can be overused. Effective use requires applying patterns strategically rather than recasting all code as patterns.
The document discusses Unified Modeling Language (UML), which is a general purpose modeling language used to specify, visualize, construct and document software systems. UML captures both the static structure and dynamic behavior of a system. It includes structural diagrams like class and component diagrams to show system architecture, and behavioral diagrams like activity and sequence diagrams to describe system functionality. UML is widely used for software design, communication, requirements analysis and documentation across various application domains.
Conceptual Dependency (CD) is a theory developed by Schank in the 1970s to represent the meaning of natural language sentences using conceptual primitives rather than words. CD representations are built using primitives that capture the intended meaning, are language independent, and help draw inferences. There are different primitive actions, conceptual categories, and rules to build CD representations from sentences. While CD provides a general model for knowledge representation, it can be difficult to construct original sentences from representations and represent complex actions without many primitives.
Performance analysis(Time & Space Complexity)swapnac12
The document discusses algorithms analysis and design. It covers time complexity and space complexity analysis using approaches like counting the number of basic operations like assignments, comparisons etc. and analyzing how they vary with the size of the input. Common complexities like constant, linear, quadratic and cubic are explained with examples. Frequency count method is presented to determine tight bounds of time and space complexity of algorithms.
The document discusses UML package diagrams and their notations and purposes. It describes how package diagrams can be used to logically modularize complex diagrams and organize source code. It explains how packages, elements, dependencies, imports, visibility, qualified names, and merges are represented in package diagrams.
Object Definition Language (ODL) is a specification language to define the specifications of object types based on the ODMG ODL (but not compliant). ODL is a DDL for objects types. ... If defines the characteristics of types, including their properties and operations.
Packages in Java are used to organize classes and avoid naming conflicts. A package contains related classes and groups them by functionality. Packages can be stored in JAR files. Fully qualified class names include the package name to uniquely identify classes. There are Java API packages and user-defined packages. The Java API packages contain commonly used classes organized by functionality. Packages are specified using dot notation and control access to classes.
The document discusses different types of agent structures and programs. It describes simple reflex agents that select actions based only on the current percept. Model based reflex agents maintain an internal state based on the percept history. Goal-based agents choose actions that achieve defined goals, while utility based agents aim to maximize utility or happiness across states. Learning agents can improve by making modifications based on feedback from experiences.
Type constructor concepts where the examples are clearly described and points are easy to understand. Every point is clearly connected once we go through ppts.
This presentation contains the concepts related to database design using ER Diagram. The content is adapted from the contents of the authors of the book mentioned in the reference.
This document provides an overview of the incremental build model that Project Pluto will adopt to develop their software system. The incremental build model involves iterative development where requirements are broken into prioritized builds. Each build adds new capabilities and allows for frequent testing, demonstration of progress, and verification of work completed so far. This approach provides benefits like continuous integration and validation of the evolving product, frequent delivery of working functionality, and ability to make changes based on feedback.
The document discusses the key elements of the object model, including abstraction, encapsulation, modularity, and hierarchy. It explains that abstraction is one of the fundamental ways to cope with complexity in software design. Abstraction focuses on the essential characteristics of an object that distinguish it from other objects, from the perspective of the viewer. The object model provides a conceptual framework for object-oriented programming that is based on these elements.
UML (Unified Modeling Language) is a standard modeling language used to specify, visualize, and document software systems. It uses graphical notations to model structural and behavioral aspects of a system. Common UML diagram types include use case diagrams, class diagrams, sequence diagrams, and state diagrams. Use case diagrams model user interactions, class diagrams show system entities and relationships, sequence diagrams visualize object interactions over time, and state diagrams depict object states and transitions. UML aims to simplify the complex process of software design through standardized modeling.
Software design is a process through which requirements are translated into a ― blueprint for constructing the software.
Initially, the blueprint shows how the software will look and what kind of data or components will be required to in making it.
The software is divided into separately named components, often called ‘MODULES’, that are used to detect problems at ease.
This follows the "DIVIDE AND CONQUER" conclusion. It's easier to solve a complex problem when you break it into manageable pieces.
This document provides an overview of system modeling. It discusses that system modeling involves developing abstract models of a system from different perspectives, and is commonly done using the Unified Modeling Language (UML). It also describes various UML diagram types used in system modeling like use case diagrams, class diagrams, and state diagrams. Finally, it gives examples of modeling different views of a mental health case management system, including contextual models, interaction models, structural models, and behavioral models.
System Models in Software Engineering SE7koolkampus
The document discusses various types of system models used in requirements engineering including context models, behavioral models, data models, object models, and how CASE workbenches support system modeling. It describes behavioral models like data flow diagrams and state machine models, data models like entity-relationship diagrams, and object models using the Unified Modeling Language. CASE tools can support modeling through features like diagram editors, repositories, and code generation.
This document discusses implementation of inheritance in Java and C#. It covers key inheritance concepts like simple, multilevel, and hierarchical inheritance. It provides examples of inheritance in Java using keywords like extends, super, this. Interfaces are discussed as a way to achieve multiple inheritance in Java. The document also discusses implementation of inheritance in C# using concepts like calling base class constructors and defining virtual methods.
When a software program is modularized, there are measures by which the quality of a design of modules and their interaction among them can be measured. These measures are called coupling and cohesion.
This document discusses object-oriented analysis and design (OOAD) and the unified process. It introduces OOAD and the unified process framework, which includes inception, elaboration, construction, and transition phases. It also covers the unified modeling language (UML), including use case diagrams, class diagrams, and other diagram types. Specific topics covered include identifying actors and use cases, drawing associations and relationships between actors and use cases, class notation, and an example use case diagram for an alarm clock system.
This document discusses design patterns, beginning with how they were introduced in architecture in the 1950s and became popularized by the "Gang of Four" researchers. It defines what patterns are and provides examples of different types of patterns (creational, structural, behavioral) along with common patterns in each category. The benefits of patterns are that they enable reuse, improve communication, and ease the transition to object-oriented development. Potential drawbacks are that patterns do not directly lead to code reuse and can be overused. Effective use requires applying patterns strategically rather than recasting all code as patterns.
The document discusses Unified Modeling Language (UML), which is a general purpose modeling language used to specify, visualize, construct and document software systems. UML captures both the static structure and dynamic behavior of a system. It includes structural diagrams like class and component diagrams to show system architecture, and behavioral diagrams like activity and sequence diagrams to describe system functionality. UML is widely used for software design, communication, requirements analysis and documentation across various application domains.
Conceptual Dependency (CD) is a theory developed by Schank in the 1970s to represent the meaning of natural language sentences using conceptual primitives rather than words. CD representations are built using primitives that capture the intended meaning, are language independent, and help draw inferences. There are different primitive actions, conceptual categories, and rules to build CD representations from sentences. While CD provides a general model for knowledge representation, it can be difficult to construct original sentences from representations and represent complex actions without many primitives.
Performance analysis(Time & Space Complexity)swapnac12
The document discusses algorithms analysis and design. It covers time complexity and space complexity analysis using approaches like counting the number of basic operations like assignments, comparisons etc. and analyzing how they vary with the size of the input. Common complexities like constant, linear, quadratic and cubic are explained with examples. Frequency count method is presented to determine tight bounds of time and space complexity of algorithms.
The document discusses UML package diagrams and their notations and purposes. It describes how package diagrams can be used to logically modularize complex diagrams and organize source code. It explains how packages, elements, dependencies, imports, visibility, qualified names, and merges are represented in package diagrams.
Object Definition Language (ODL) is a specification language to define the specifications of object types based on the ODMG ODL (but not compliant). ODL is a DDL for objects types. ... If defines the characteristics of types, including their properties and operations.
Packages in Java are used to organize classes and avoid naming conflicts. A package contains related classes and groups them by functionality. Packages can be stored in JAR files. Fully qualified class names include the package name to uniquely identify classes. There are Java API packages and user-defined packages. The Java API packages contain commonly used classes organized by functionality. Packages are specified using dot notation and control access to classes.
The document discusses different types of agent structures and programs. It describes simple reflex agents that select actions based only on the current percept. Model based reflex agents maintain an internal state based on the percept history. Goal-based agents choose actions that achieve defined goals, while utility based agents aim to maximize utility or happiness across states. Learning agents can improve by making modifications based on feedback from experiences.
Type constructor concepts where the examples are clearly described and points are easy to understand. Every point is clearly connected once we go through ppts.
This presentation contains the concepts related to database design using ER Diagram. The content is adapted from the contents of the authors of the book mentioned in the reference.
This document provides an overview of the incremental build model that Project Pluto will adopt to develop their software system. The incremental build model involves iterative development where requirements are broken into prioritized builds. Each build adds new capabilities and allows for frequent testing, demonstration of progress, and verification of work completed so far. This approach provides benefits like continuous integration and validation of the evolving product, frequent delivery of working functionality, and ability to make changes based on feedback.
The document discusses the structure of Java classes. A class describes a set of objects through fields, constructors, and methods. Fields hold an object's data, constructors create new objects, and methods describe actions objects can perform. A class can also contain static data and methods that are not part of individual objects. Methods define the behavior of a class using parameters, return types, and local variables. Objects communicate by sending messages to each other's methods.
The document discusses a lecture on object-oriented programming. It covers key topics like classes, objects, fields, methods, constructors, and creating objects from classes. It provides examples of how to define classes with fields, methods, and constructors. It also explains how to compile and run a simple Java program with a main method.
The document describes a course on software engineering. It includes the course objectives, which are to understand various phases of a software project like requirements engineering and analysis modeling. It also aims to teach object-oriented concepts, enterprise integration, deployment techniques, and testing and project management methods. The document lists the course outcomes and syllabus covering topics like software processes, requirements analysis, object-oriented concepts, software design, and testing and project management over 5 units. It also provides references and learning resources.
This document outlines the course content and evaluation scheme for the subject BCA 303: Object Oriented Technology (C++) taught in the third semester of the BCA program at Kadi Sarva Vishwavidyalaya, Gandhinagar. The key objectives of the course are to help students understand the concepts of object-oriented programming using C++ and develop practical skills that can be applied in the future. The course is divided into four units that cover topics such as introduction to OOP concepts, functions and classes in C++, constructors, destructors, inheritance, operator overloading, virtual functions, and exception handling. Students will be evaluated based on an internal assessment worth 30 marks and an external university examination of 70
Database Design and the ER Model, Indexing and HashingPrabu U
This document provides an overview of database design and the entity-relationship (ER) model. It discusses the database design process, including initial, conceptual, logical, and physical design phases. It then describes the key concepts of the ER model, including entities, attributes, relationships, cardinalities, participation constraints, and keys. The document explains how to design ER diagrams and how to remove redundant attributes. It provides examples of one-to-one, one-to-many, many-to-one, and many-to-many relationships. Finally, it demonstrates how to represent complex attributes like composite, multi-valued, and derived attributes in an ER diagram.
Learning Strategy with Groups on Page Based Students' Profilesaciijournal
Most of students desire to know about their knowledge level to perfect their exams. In learning environment
the fields of study overwhelm on page with collaboration or cooperation. Students can do their exercises
either individually or collaboratively with their peers. The system provides the guidelines for students'
learning system about interest fields as Java in this system. Especially the system feedbacks information
about exam to know their grades without teachers. The participants who answered the exam can discuss
with each others because of sharing e mail and list of them.
Dynamic Question Answer Generator An Enhanced Approach to Question Generationijtsrd
Teachers and educational institutions seek new questions with different difficulty levels for setting up tests for their students. Also, students long for distinct and new questions to practice for their tests as redundant questions are found everywhere. However, setting up new questions every time is a tedious task for teachers. To overcome this conundrum, we have concocted an artificially intelligent system which generates questions and answers for the mathematical topic –Quadratic equations. The system uses i Randomization technique for generating unique questions each time and ii First order logic and Automated deduction to produce solution for the generated question. The goal was achieved and the system works efficiently. It is robust, reliable and helpful for teachers, students and other organizations for retrieving Quadratic equations questions, hassle free. Rahul Bhatia | Vishakha Gautam | Yash Kumar | Ankush Garg ""Dynamic Question Answer Generator: An Enhanced Approach to Question Generation"" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-3 | Issue-4 , June 2019, URL: https://www.ijtsrd.com/papers/ijtsrd23730.pdf
Paper URL: https://www.ijtsrd.com/computer-science/artificial-intelligence/23730/dynamic-question-answer-generator-an-enhanced-approach-to-question-generation/rahul-bhatia
The document provides an introduction to object-oriented programming concepts in Python using PyTorch examples. It discusses key object-oriented programming concepts like classes, instances, attributes, encapsulation, inheritance and polymorphism. It also summarizes some example PyTorch code to demonstrate concepts like classes, methods, inheritance and polymorphism in an object-oriented deep learning context.
The document discusses various Java concepts including constructors, this keyword, garbage collection, finalize method, method overloading, argument passing, static keyword, nested and inner classes, command line arguments, and varargs. Constructors initialize objects and are called automatically upon object creation. The this keyword refers to the current object. Garbage collection automatically frees memory for objects with no references. The finalize method allows defining actions before object destruction.
Learning strategy with groups on page based students' profilesaciijournal
Most of students desire to know about their knowledge level to perfect their exams. In learning environment the fields of study overwhelm on page with collaboration or cooperation. Students can do their exercises either individually or collaboratively with their peers. The system provides the guidelines for students' learning system about interest fields as Java in this system. Especially the system feedbacks information about exam to know their grades without teachers. The participants who answered the exam can discuss with each others because of sharing e mail and list of them.
This document discusses objects and classes in Java. It begins by defining an object as an instance of a class that has state and behavior. An object's state is represented by its data fields and its behavior by its methods. It then defines a class as a template or blueprint from which objects are created. A class contains fields to represent state, methods to represent behavior, and constructors. The document provides examples of defining classes with fields and methods, creating objects from classes using the new operator, and accessing object fields and methods. It also covers access modifiers, packages, arrays of objects, and constructors in Java.
This document provides an overview of object-oriented programming concepts including classes, objects, encapsulation and abstraction. It begins by describing the objectives of learning OOP which are to describe objects and classes, define classes, construct objects using constructors, access object members using dot notation, and apply abstraction and encapsulation. It then compares procedural and object-oriented programming, noting that OOP involves programming using objects defined by classes. Key concepts covered include an object's state consisting of data fields and behavior defined by methods. The document demonstrates defining classes, creating objects, accessing object members, and using private data fields for encapsulation.
The document discusses object oriented programming concepts in C++ including classes, objects, data members, member functions, data abstraction, encapsulation, inheritance, polymorphism, access specifiers, and constructors. It provides examples of defining a class with private, public, and protected data members and member functions. Constructors such as the default, parameterized, and copy constructor are demonstrated. Inheritance concepts such as the base class, derived class, types of inheritance and visibility modes are explained.
Object-oriented analysis and design (OOAD) involves finding objects or concepts in the problem domain during analysis and defining software objects and how they collaborate during design. The document discusses various OOAD concepts like the unified modeling language (UML), use case diagrams, class diagrams, state diagrams, and design patterns. It provides definitions and examples of these concepts and explains tasks like requirements analysis, architecture design, and modeling object relationships, behaviors, and interactions during analysis and design.
The College Classroom Week 10: Teaching as ResearchPeter Newbury
This document summarizes a class on teaching as research and success in an educational career. It discusses categories of educational research and examples of education research from different disciplines. It presents results from studies on improving learning in a physics class and the value of course-specific learning goals. Details are provided on conceptual steps in the teaching as research process and examples of Beth Simon's teaching as research projects. Guidance is offered on funding sources for teaching as research, practical advice for succeeding as an educator, and having students develop a microteaching lesson for feedback.
This document discusses using data mining techniques to analyze faculty performance at an engineering college in India. It proposes analyzing 4 parameters - student complaints, feedback, results, and reviews - to evaluate faculty instead of just 2 parameters (feedback and results) used previously. It will use opinion mining to analyze faculty performance and calculate scores. The system will collect data, preprocess it, apply a KNN algorithm to the 4 parameters to calculate scores for each faculty, sum the scores, classify results using rule-based classification, and analyze outcomes by subject and class. It reviews related work applying educational data mining and concludes the multiple classifier approach is better, and future work could consider more parameters and expand to all college branches and departments.
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The document discusses interaction diagrams, specifically sequence diagrams and communication diagrams. It explains that interaction diagrams show interactions between objects by depicting the messages exchanged. A sequence diagram emphasizes the time ordering of messages, showing objects arranged from left to right and messages ordered from top to bottom. A communication diagram emphasizes the structural organization of objects, showing them as vertices connected by links along which messages pass. Both diagram types are semantically equivalent but visualize information differently based on their focus. Examples of sequence and communication diagrams are provided for processes like patient admission to a hospital.
OOAD - Systems and Object Orientation ConceptsVicter Paul
The document discusses key concepts in systems analysis and design as well as object orientation. It defines a system as a set of elements arranged to accomplish an objective. Systems have inputs, processes, and outputs. Characteristics of systems include organization, interaction, interdependence, and a central objective. The document contrasts procedural and object-oriented programming, noting that object-oriented programming emphasizes objects/data while hiding data and combining data and methods. Finally, the document outlines fundamental concepts in object orientation like objects, classes, abstraction, encapsulation, inheritance, and polymorphism.
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1. o
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3. 6
4. -1 (throws StringIndexOutOfBoundsException)
5. Removes leading and trailing whitespace
6. false
7. A negative integer, since "sam" is less than "Sam" alphabetically
Packages and interfaces are two of Java's most innovative features. Packages are used to group related classes and avoid naming conflicts by providing a mechanism to partition the class namespace into more manageable chunks. Packages also provide access control, with protected and default members having package-level access. To define a package, the package statement is included at the top of a Java file specifying the package name. Import statements are used to make classes in other packages visible. Packages can be built-in, from the Java API, or user-defined.
The document discusses procedural programming versus object-oriented programming and provides examples using Java. It defines procedural programming as dividing a program into subprocedures that perform specific tasks, with most data shared globally. Object-oriented programming is defined as partitioning memory for both data and functions using objects. The document then outlines key concepts of OOP like objects, classes, encapsulation, and polymorphism. It provides history on the development of Java and its advantages over C++ as a simpler, safer, and more robust language.
The document discusses exception handling in Java. It explains that exceptions represent runtime errors and can be handled using try, catch, and finally blocks. The key exception types are Exception, RuntimeException, and Error. Exception is the superclass of all exceptions and must be caught, while RuntimeException represents programming errors that do not require catching. Error represents very severe errors outside the program's control. The document provides examples of how to throw, catch, and handle different exception types in Java code.
Java - Object Oriented Programming ConceptsVicter Paul
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This document discusses Java file input/output and streams. It covers the core stream classes like InputStream, OutputStream, Reader and Writer and their subclasses. File and FileInputStream/FileOutputStream allow working with files and directories on the file system. The key abstraction is streams, which are linked to physical devices and provide a way to send and receive data through classes that perform input or output of bytes or characters.
Inheritance allows one class to acquire properties of another class. The subclass inherits all properties of the superclass such as methods and fields. The subclass can also define its own unique properties in addition to what it inherits. Inheritance enables code reuse and is a fundamental concept in object-oriented programming.
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The document provides an overview of Java applets, including:
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Online train ticket booking system project.pdfKamal Acharya
Rail transport is one of the important modes of transport in India. Now a days we
see that there are railways that are present for the long as well as short distance
travelling which makes the life of the people easier. When compared to other
means of transport, a railway is the cheapest means of transport. The maintenance
of the railway database also plays a major role in the smooth running of this
system. The Online Train Ticket Management System will help in reserving the
tickets of the railways to travel from a particular source to the destination.
This study Examines the Effectiveness of Talent Procurement through the Imple...DharmaBanothu
In the world with high technology and fast
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choice for recruitment. E-Recruitment is being done
through many online platforms like Linkedin, Naukri,
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Recruitment has gone through next level by using
Artificial Intelligence too.
Key Words : Talent Management, Talent Acquisition , E-
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Natural language processing (NLP) has
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four phases by examining various levels of NLP and
components of Natural Language Generation,
followed by a review of the history and progression of
NLP. Subsequently, we delve into the current state of
the art by presenting diverse NLP applications,
contemporary trends, and challenges. Finally, we
discuss some available datasets, models, and
evaluation metrics in NLP.
This is an overview of my current metallic design and engineering knowledge base built up over my professional career and two MSc degrees : - MSc in Advanced Manufacturing Technology University of Portsmouth graduated 1st May 1998, and MSc in Aircraft Engineering Cranfield University graduated 8th June 2007.
Impartiality as per ISO /IEC 17025:2017 StandardMuhammadJazib15
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1. Class Diagram
Dr. P. Victer Paul, Indian Institute of Information Technology Kottayam
2. Class and Object Diagrams
Lab Material
Dr. P. Victer Paul, Indian Institute of Information Technology Kottayam
3. Class Diagram
A class diagram shows a set of classes, interfaces, and
collaborations and their relationships.
Class diagrams commonly contain the following things:
Classes
Interfaces
Collaborations
Dependency
Generalization, and
Association relationships
Aggregation
Composition
Multiplicity
3
Dr. P. Victer Paul, Indian Institute of Information Technology Kottayam
4. Class Diagram
A class diagram shows a set of classes, interfaces, and
collaborations and their relationships.
Class diagrams commonly contain the following things:
Classes
Interfaces
Collaborations
Dependency
Generalization, and
Association
Aggregation
Composition
Multiplicity
4
Dr. P. Victer Paul, Indian Institute of Information Technology Kottayam
5. Steps involved
Study the given problem statement
Identify the classes
Identify the attributes and behaviors (properties and methods)
Denote visibility, data type, argument and return value type
Identify the relationships
Denote Relationships details
Relationship name
Role
Relation direction
Multiplicity
Identify the possible Interface (common must methods for set of
classes) and relate
5
Dr. P. Victer Paul, Indian Institute of Information Technology Kottayam
6. Study the given problem statement
Develop an automated student registration system. The students
registration system identify the School (i.e. Arts & Sciences,
Engineering, Fine Arts, etc.) in which the student is registered. The
school offer both undergraduate and graduate programs. It also shall
Identify the current courses offered by each department and the
instructor engaged to each class to handle the course.
6
Dr. P. Victer Paul, Indian Institute of Information Technology Kottayam
7. Identify the classes
Develop an automated student registration system. The students
registration system identify the School (i.e. Arts & Sciences,
Engineering, Fine Arts, etc.) in which the student is registered. The
school offer both undergraduate and graduate programs. It also shall
Identify the current courses offered by each department and the
instructor engaged to each class to handle the course.
7
Dr. P. Victer Paul, Indian Institute of Information Technology Kottayam
9. Identify the attributes and behaviors
Develop an automated student registration system. The students
registration system identify the School (i.e. Arts & Sciences,
Engineering, Fine Arts, etc.) in which the student is registered. The
school offer both undergraduate and graduate programs. It also shall
Identify the current courses offered by each department and the
instructor engaged to each class to handle the course.
9
Dr. P. Victer Paul, Indian Institute of Information Technology Kottayam
10. Identify the classes
School
-name : String
-address : String
-id : int
-startdate : Date
+school(int id, String name):
+addStudent():bool
+removeStudent(int):bool
name
attributes
operations
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Dr. P. Victer Paul, Indian Institute of Information Technology Kottayam
11. Denote visibility, data type…..
1. Public: Any outside classifier can use (+).
2. Protected: Any descendant of the classifier can use (#).
3. Private: Only the classifier itself can use (-).
4. Protected: public within package (~)
1. Instance: Each instance of the classifier holds its own value
for the feature.
2. Class variable: There is just one value of the feature for all
instances of the classifier. (static variable)
static variable should be underlined
* Derived variables should precede /
11
Dr. P. Victer Paul, Indian Institute of Information Technology Kottayam
12. Identify the relationships
Generalization
Association (general) – name, role, direction, multiplicity
Special types:
Aggregation (parts can exist without whole)
Composition (parts cant exist without whole)
Realization
12
Dr. P. Victer Paul, Indian Institute of Information Technology Kottayam
13. Identify the relationships
Generalization
Use to show a parent-child relationship.
Student
……
generalization
+handleClass():void
Graduate student
+attenMidexam():void
Undergraduate student
……
-ug:String
13
Dr. P. Victer Paul, Indian Institute of Information Technology Kottayam
14. Identify the relationships
Generalization
Shape
SplineEllipsePolygon
Shape
SplineEllipsePolygon
Shared Target Style
Separate Target Style
. . .
. . .
14
Dr. P. Victer Paul, Indian Institute of Information Technology Kottayam
15. Identify the relationships
Association (general) – name, role, direction, multiplicity
Instructor CourseTeaches
Name an association to describe its nature.
Direction triangle: direction of reading.
Instructor Course
Role: face presented to the other class.
teacher subject taught
Person Company
employee employer
15
Dr. P. Victer Paul, Indian Institute of Information Technology Kottayam
16. Identify the relationships
Association (general) – name, role, direction, multiplicity
Instructor Course
teacher Subject taught
1..2 0..3
Multiplicity: How many objects may be connected across
an instance of an association.
Multiplicity at one end for each object at the other end,
there must be that many objects at the near end.
Exactly one: 1
Zero or one: 0 .. 1
Many: 0 .. *
One or more: 1 .. *
Not shown unspecified or suppressed 16
Dr. P. Victer Paul, Indian Institute of Information Technology Kottayam
17. Identify the relationships
Aggregation (general) – name, role, direction, multiplicity
1
0..*
Department
Instructor
whole
part
1
1..*
Team
Player
whole
part
17
Dr. P. Victer Paul, Indian Institute of Information Technology Kottayam
18. Identify the relationships
Composition (general) – name, role, direction, multiplicity
1
0..*
Account
Order
whole
part
1
1..*
School
Department
18
Dr. P. Victer Paul, Indian Institute of Information Technology Kottayam
19. Identify the possible Interface
Identify one or more classes that
must have a set of common
operations.
Create interface with the set of
common operations (abstract).
Relate the classes and the interface
by Realization.
Defines a set of operation specs
Never defines an implementation
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Dr. P. Victer Paul, Indian Institute of Information Technology Kottayam
21. Example 1
21
Dr. P. Victer Paul, Indian Institute of Information Technology Kottayam
22. Example 2
22
Dr. P. Victer Paul, Indian Institute of Information Technology Kottayam
23. Example 3
23
Dr. P. Victer Paul, Indian Institute of Information Technology Kottayam
24. Example 4
24
Dr. P. Victer Paul, Indian Institute of Information Technology Kottayam
25. Example 5
25
Dr. P. Victer Paul, Indian Institute of Information Technology Kottayam
26. Example 6
26
Dr. P. Victer Paul, Indian Institute of Information Technology Kottayam
27. Steps involved
Study the given problem statement
Identify the classes
Identify the attributes and behaviors (properties and methods)
Denote visibility, data type, argument and return value type
Identify the relationships
Denote Relationships details
Relationship name
Role
Relation direction
Multiplicity
Identify the possible Interface (common must methods for set of
classes) and relate
27
Dr. P. Victer Paul, Indian Institute of Information Technology Kottayam
28. Object Diagram
Dr. P. Victer Paul, Indian Institute of Information Technology Kottayam
29. Object Diagram
Object diagrams model the instances of things contained in class
diagrams.
An object diagram shows a set of objects and their relationships
at a point in time.
This involves modeling a snapshot of the system at a moment in
time and rendering a set of objects, their state, and their
relationships.
An object diagram covers a set of instances of the things found in
a class diagram.
29
Dr. P. Victer Paul, Indian Institute of Information Technology Kottayam
30. Object Representation
In class diagram elements are in abstract form to represent the
blue print and
in object diagram the elements are in concrete form to represent
the real world object.
30
Dr. P. Victer Paul, Indian Institute of Information Technology Kottayam
31. How to model Object Diagram
an object diagram is an instance of a class diagram.
It implies that an object diagram consists of instances of things
used in a class diagram.
So both diagrams are made of same basic elements but in
different form.
To capture a particular system, numbers (classes) of class
diagrams are limited.
However, if we consider object diagrams then we can have
unlimited number of instances, which are unique in nature.
31
Dr. P. Victer Paul, Indian Institute of Information Technology Kottayam
32. How to model Object Diagram
a single object diagram cannot capture all the necessary
instances or rather cannot specify all the objects of a system.
Hence, the solution is −
1. First, analyze the system and decide which instances have important
data and association.
2. Second, consider only those instances, which will cover the
functionality.
3. Third, make some optimization as the number of instances are
unlimited.
32
Dr. P. Victer Paul, Indian Institute of Information Technology Kottayam
33. Things to be decided
the following things are to be decided before starting the
construction of the diagram,
1. The object diagram should have a meaningful name to indicate its
purpose.
2. The most important elements are to be identified.
3. The association among objects should be clarified.
4. Values of different elements need to be captured to include in the
object diagram.
5. Add proper notes at points where more clarity is required.
33
Dr. P. Victer Paul, Indian Institute of Information Technology Kottayam
34. Class and Object Diagram 1
34
Dr. P. Victer Paul, Indian Institute of Information Technology Kottayam
35. Class and Object Diagram 2
35
Dr. P. Victer Paul, Indian Institute of Information Technology Kottayam
36. Class and Object Diagram 3
36
Dr. P. Victer Paul, Indian Institute of Information Technology Kottayam
37. Class and Object Diagram 4
37
Dr. P. Victer Paul, Indian Institute of Information Technology Kottayam
38. Class and Object Diagram 5
38
Dr. P. Victer Paul, Indian Institute of Information Technology Kottayam
39. Example – Class Diagram
39
Dr. P. Victer Paul, Indian Institute of Information Technology Kottayam
40. Example – Object Diagram
40
Dr. P. Victer Paul, Indian Institute of Information Technology Kottayam
41. Lets Try..!
41
Dr. P. Victer Paul, Indian Institute of Information Technology Kottayam
42. Class vs Object Diagram
42
Dr. P. Victer Paul, Indian Institute of Information Technology Kottayam
43. The End
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Dr. P. Victer Paul, Indian Institute of Information Technology Kottayam