The correct answer is TRUE.
An impedance mismatch is a situation where two systems or components are not compatible with each other. In the case of object-oriented programming and XML, the impedance mismatch is due to the different ways that objects and XML elements are structured.
Objects are typically organized in a hierarchical structure, with each object having a parent object and one or more child objects. XML elements, on the other hand, are typically organized in a flat structure, with each element having no parent element and no child elements.
This difference in structure can make it difficult to map objects to XML elements. For example, if an object has a child object, it is not clear how to represent this in XML. One option is to create a separate XML element for the child object, but this would create a flat structure that is not consistent with the object’s hierarchical structure. Another option is to include the child object’s data in the parent object’s XML element, but this would violate the principle of encapsulation.
There are a number of techniques that can be used to overcome the impedance mismatch between objects and XML. One technique is to use a data binding library. A data binding library is a software library that provides a way to map objects to XML elements. Data binding libraries can make it easier to map objects to XML, but they can also add complexity to the code.
Another technique is to use a serialization framework. A serialization framework is a software framework that provides a way to convert objects to a format that can be stored or transmitted. Serialization frameworks can make it easier to convert objects to XML, but they can also add complexity to the code.
The best technique for overcoming the impedance mismatch between objects and XML depends on the specific application. In some cases, it may be possible to use a data binding library or a serialization framework. In other cases, it may be necessary to write custom code to map objects to XML.