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Outline SAD PhasesOOAD PhasesSAD vs. OOAD Key Differences Between Structured and Object-Oriented Analysis and. System software control, integrate and manage the different hardware components of Table – Differentiation between SSAD & OOAD. [5] [6]. Sr. No. Structured Vs. Object Oriented Analysis and Design SAD Vs. OOAD Use case diagrams, which show the interactions between a system and its environment.

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Need to define software objects and how they collaborate to fulfill the requirements. Here incremental testing comes beteeen picture wherein the product is tested during various stages of its development.

System Analysis and Design Object Oriented Approach

Defining the problem 2. This phase concerns with determining the system requirements and to understand the system requirements build a use-case model. The objects do not exist in isolation, they exist in relationship with other objects. The main aim of Object Oriented Design OOD is to improve the quality and productivity of system analysis and design by making it more usable.

DFD Context diagram shows the system boundaries, external entities that interact with the system, and major information flows between entities and the system. It focuses on essential characteristics of an object relative to perspective of user.


Chapter 8 Slide 1 System models. Will be covered in this course 2- OR Object Models: They are nothing more than an action that an object can perform.

Structured Vs. Object Oriented Analysis and Design SAD Vs. OOAD – ppt video online download

Data-driven models show the sequence of actions involved in processing input data and generating an associated output. Prior to the rise of OOM, the dominant paradigm was procedural programming, which emphasized the use of discreet reusable code blocks that could stand on their own, take variables, perform a function on them, and return values.

It is the latest and most used way of design now. My presentations Profile Feedback Log out. Published by Shannon Kelly Modified over 3 years ago.

Chapter 6: Structured Vs. Object Oriented Analysis and Design.

Also known as system unit. It is suitable for real time system, embedded system and projects where objects are not the most useful level of abstraction. When you are developing models diffrence the early stages of the software engineering process, think of objects represent something in the real world, such as a patient, a prescription, doctor, etc.

If you wish to download it, please recommend it to your friends in any social system. These show the processing steps as data flows through a system. It allows us to manipulate objects of different classes by knowing only their common properties.

The waterfall model is a sequential design process, often used in software development processes, in which progress is seen as flowing steadily downwards like a waterfall through the phases of Conception, Initiation, Analysis, Design, Construction, Testing and Maintenance. And implemented using any OO programming language; e. Sharif University of Technology Session 3. Understands what Object Oriented Analysis and Design is.


This model represents the user needs or user view of system. In this approach, projects can be difficult to manage due to uncertain transitions between phase.

Use case diagrams, which show the interactions between a system and its environment. About project SlidePlayer Terms of Service. Software development and all of its activities including testing are an iterative process. For example, finding address of a particular employee. They show what happens or what is supposed to happen when a system responds to a stimulus from its environment.

Structured Analysis and Object Oriented Analysis are different techniques of developing a computer system. Chapter 14 Slide 1 Object-oriented Design. For example, there are many specific software development processes that ‘fit’ the spiral lifecycle model.

Polymorphism is the ability to take on many different forms. Published by Kerrie Bond Modified over 3 years ago.