Answer Happy

Assignment For the problem domain of your semester project propose a data structure that could be the subject of electronic document interchange with some external party: • create an XML document containing exemplary data items and a link to its document schema expressed with XML Schema • create the abovementioned schema specification and include in it among others: o a custom enumerated-value type (created as a constraint of some predefined XML Schema data type; o a custom type created using the xs: union of two domains (like e.g. integer plus selected string values); o element or attribute containing a date; o a custom type created using a regular expression pattern (like e.g. e-mail, ISBN number etc.) o uniqueness constraint for at least one attribute of for a combination of attributes. make sure that the data contained in the document validates successfully against the schema