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20 Class Activity Draw a sequence chart for the vending machine use case Customer purchases soft drink with credit card.
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15 Flat Messages Used when we dont want to specify whether or not sender waits for a reponse.14 Asynchronous Message Example Roff page 98.13 Asynchronous Message Used when we dont want the sender to wait for a response Typically a one way message No response is sent.12 Synchronous Message Example Roff, page 97.Sender waits for response to message before doing anything more. 11 Synchronous Messages Used when we want to things to be done one at a time.10 Kinds of Messages UML defines four kinds of messages: Sender waits for a reply (Procedural message) The reply to a synchronous message Sender does not wait for a reply Dont know or dont care Often not shown.9 Messages Arrows are labeled with the name of the message, or stimulus, that they represent.When an object is active, either because it is doing something, or because it has sent a message to another object that is doing something on its behalf. Long narrow vertical box on lifeline indicates focus of control. 8 Messages Interactions are represented by messages sent from one object to another.May run entire length of diagram or may start or end within the diagram Underline on name indicates object (vs class) More notation for names is defined in UML. 7 Lifelines Represents time during which the object exists.Add objects left to right as they get involved. General guidelines: Normally put actor on the left.
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6 Active Objects No significance to position of the active objects on the left to right axis.3 Why do sequence diagrams? Add detail to use cases.For now, high level interactions Look at more detailed level later Starting to look at how the system does something rather that just what is done. How objects collaborate to realize a use case. 2 Sequence Diagrams Used to model object interactions on a time axis.1 Sequence Diagrams Blaha and Rumbaugh Sections 7.2 and 8.2.Object-Oriented Modeling and Design with UML, by Michael Blaha, James Rumbaugh, Pearson Education. The C++ Programming Language Paperback by Bjarne Stroustrupģ. Object Oriented Programming with C++ by E. Handling the Breakdown of Design-by-Contract: Exceptions to handle Contract violations, Exception handling in C++/python, Exception handling, Exception Classes in C++/Python Standard Library.ġ. Virtual Functions and Polymorphism: Virtual Functions, The Virtual Attribute Is Inherited, Virtual Functions Are Hierarchical, Pure Virtual Functions, Using Virtual Functions, Early vs Late Binding. Inheritance Virtual functions & Polymorphism. Functions and Operator Overloading: Functions, scope resolution operator, passing objects as arguments, returning objects, friend functions & classes, arrays of objects, Class members, Operator overloading using friend functions. Inheritance: Base-Class Access Control, Inheritance and Protected Members, Inheriting, Multiple Base Classes, Constructors, Destructors and Inheritance, Granting Access, Virtual Base Classes. Overview of Object-based Modeling: Unified Modified Language (UML): Class modeling, Structural Diagrams, Behavioural Diagrams, state and interaction modeling. object oriented programming (OOP), object oriented programming concepts, classes, reusability, encapsulation, inheritance, polymorphism, dynamic binding.Ĭlasses & Objects: Introduction, Class Specification, Class Objects, access members, defining member functions, data hiding, constructors, destructors, parameterised constructors, static data members. Overview of C++/Python : Fundamentals of object oriented programming – procedure oriented programming Vs. Introduction to OOAD: Basic notion of objects, Multiple Views of Objects, Principles of OOAD- Abstraction Hierarchy, Decomposition Hierarchy.