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What is Object-oriented analysis and design ?

Posted By :nishithraj     Posted Date :March 16, 2010    Points :10   Category :Others 
Object-oriented analysis and design (OOAD) is a software engineering method to model a system as a group of interactive objects. Here each object characterized by a class.

You can also find related Interview Question to What is Object-oriented analysis and design ?  below: 

What is Object Oriented model?

  
This model is based on collection of objects. An object contains values stored in instance variables with in the object. An object also contains bodies of code that operate on the object. These bodies of code are called methods. Objects that contain same types of values and the same methods are grouped together into classes. (More...)

What are object-oriented concepts?

  
Inheritance;
Abstraction;
Polymorphism;
Encapsulation; (More...)

what is the difference between object based and object oriented programming language?

  
object based language such as VB 6.0. The main difference is about the pureness of OO nature.VB 6.0 does not handle each and every thing as an object VB.NET or C# or Java does so (More...)

Difference between Object Base and Object Oriented ?

  
In object oriented you use build in class, template class and also define your own class but in object base we can only use build in class User cannot create his own class.
Thats all. (More...)

What is a Null object?

  
It is an object of some class whose purpose is to indicate that a real object of that class does not exist. One common use for a null object is a return value from a member function that is supposed to return an object with some specified properties but cannot find such an object. (More...)

What is Set-at-a-time or Set-oriented?

  
The High level or Non-procedural DML can specify and retrieve many records in a single DML statement. This retrieve of a record is said to be Set-at-a-time or Set-oriented. (More...)

How to decide on the design consideration to take a Datagrid, datalist or repeater ?

  
Many make a blind choice of choosing datagrid directly, but that's not the right way.

Datagrid provides ability to allow the end-user to sort, page, and edit its data. But it comes at a cost of speed. Second the display format is simple that is in row and columns. Real life scenarios can be more demanding that

With its templates, the DataList provides more control over the look and feel of the displayed data than the DataGrid.

It offers better performance than datagrid Repeater control allows for complete and total control. With the Repeater, the only HTML emitted are the values of the databinding statements in the templates along with the HTML markup specified in the templates-no "extra" HTML is emitted, as with the DataGrid and DataList. By requiring the developer to specify the complete generated HTML markup, the Repeater often requires the longest development time. But repeater does not provide editing features like datagrid so everything has to be coded by programmer. However, the Repeater does boast the best performance of the three data Web controls. Repeater is fastest followed by Datalist and finally datagrid. (More...)

How can I look up a parent class method or property of any System-level object?

  
Use the Class View window, accessed from the standard toolbar by clicking View | Class View. (More...)

What is object Reference Tracing?

  
Object Reference Tracing is record sequential stack traces each time whenever object reference counter is incremented or decremented. These traces help to detect object reference errors, double-dereferencing, failure to reference. (More...)

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