It is very important to understand the OO analysis and design concepts. This article explains basic overview of object-oriented analysis and design, benefits of OOAD. What is Object Oriented Analysis and Design? This approach is also known as top-down design, modular programming, and stepwise refinement. In this approach, every problem is divided into smaller sub-problems. Each sub-problem is then analyzed and a solution is obtained to solve that sub-problem.
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It is very important to understand the OO analysis and design concepts. This article explains basic overview of object-oriented analysis and design, benefits of OOAD. What is Object Oriented Analysis and Design?
This approach is also known as top-down design, modular programming, and stepwise refinement. In this approach, every problem is divided into smaller sub-problems. Each sub-problem is then analyzed and a solution is obtained to solve that sub-problem. The Solutions of overall sub-problems are then combined to solve the overall problem. The process of implementing a structured design is called Structured Programming.
Object-oriented analysis and design OOAD is a technological approach to analyze, design a software system or business by using Object Oriented OO concept.
The most important purpose of OO analysis is to identify the objects of a system that have to be implemented. This analysis can also perform for an existing system. An efficient analysis is only possible when we think in a way where objects can be identified.
After identifying the objects the relationships between them are identified and finally the design is produced. Purpose of OO Analysis and Design We can summarize the purpose of OO analysis and design in the following way: Identifying the objects of a system Identify their relationships Generate a design which can be converted into applications using OO languages In software development life cycle we can apply and implement OO concepts by following three steps.
In OO analysis the most important purpose is to identify objects and describes them in a proper way. If the objects are identified efficiently then the next task of design will be easy. The objects should be identified with their responsibilities. The responsibilities are the functions or jobs performed by the object. We know every object have to perform some responsibilities. When these responsibilities are collaborates accurately the purpose of the system is fulfilled.
The second phase is OO design. This phase highlights on the requirements and their fulfillment or completion. In this phase all the objects are collaborated according to their projected relationships. After the completion of relationships the design is completed. The third phase is OO implementation.
It is easy to maintain. The OOAD offers a new kind of project management. Data and processes are encapsulated into objects Its risk is low It breaks down the system data through the use of Use Cases. I have over 10 years of working experience in the field of software design and development.
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Disadvantages of Object Oriented Analysis and Design
Dairg For more information on their experiements see: Because encapsulation isolates unnecessary methods and messages from other objects, you can add this type of information to an object to allow it to interact with another object. What is disxdvantages in object oriented analysis and design? The functional model corresponds to the data flow diagram of traditional structured analysis. The development process can be simplified, from analysis to requirements to implementation, through the disadfantages of the building blocks of classes and objects. Feel free to ask questions on disafvantages Oracle forum. This poses a problem in design, particularly if errors crop up or requirements change.
DISADVANTAGES OF OOAD PDF
Object-oriented analysis OOA looks at the problem domain, with the aim of producing a conceptual model of the information that exists in the area being analyzed. Analysis models do not consider any implementation constraints that might exist, such as concurrency, distribution, persistence, or how the system is to be built. Implementation constraints are dealt during object-oriented design OOD. Analysis is done before the Design The sources for the analysis can be a written requirements statement, a formal vision document, interviews with stakeholders or other interested parties. A system may be divided into multiple domains, representing different business, technological, or other areas of interest, each of which are analyzed separately. The result of object-oriented analysis is a description of what the system is functionally required to do, in the form of a conceptual model.