Yes, XML can be used for data storage. XML store data in the form of nodes and sub-nodes.
xml is used on webpages and web services and can also be used to create data bases and to store and carry data.
XML is a language used to store data. XSLT is a language which is used to transform XML into other XML.
XML is not a programming language so it doesnt do anything. Its a markup language that allows you to tranport and store data independant of platform or device, so an xml file containing data could be transefered from a mac system to a windows based one.
XML uses XSL to describe data
Some programs require XML-structured data. But there are ways around that, so if you know that programs do not need XML-structured data, then no -- you do not need XML.
In xml, an element is a piece of data.
xml uses tags to describe data, any computer can then read the data using the tags.
xml is a markup language that is use to describe data, it doesn't do anything itself as it is not a programming language. You use xml to carry information in a standardised way across different systems so that it can be carried and read without any corruption or compatibility problems.
There int xml datat as such, xml stands for extensible markup language, anybody can write xml, it is simple text formay and can be read and opened with something as basic as notepad. xml data simply means the contents of an xml file, which can be anything as in xml their is no semantics, you create your own tags, values etc
I guess you have to learn some basics. Software Engineering is a Engineering discipline and XML is a technology. There is no such relation of those two. XML is using widely in computer programming. E.g. for config. an application, store data.
XML schema is used to define the structure, content, and data types within an XML document. It helps enforce rules for validating data in XML files, ensuring that they conform to a specific format. By using XML schema, developers can establish standards for data exchange and communication between different systems.