 In reference to computer systems, attributes are defined particularly for read or write attributes for specific read or write.If the element in question could be considered a property (codice_1) of another entity (let's say codice_2), the element can have zero or more attributes (properties) of its own (codice_1 is of codice_4).In the C# programming language, attributes are metadata attached to a field or a block of code like assemblies, members and types, and are equivalent to annotations in Java.