Sybase XML manual XSM User’s Guide 269

Models: XML

1 290
Download 290 pages 48.58 Kb
Page 281
Image 281

 

XML Model Glossary

qualified name

A name beginning with a prefix and a colon (:). The prefix is associated with

(QName)

a namespace URI. For example: xs:schema, xs being associated with

 

http://www.w3.org/2001/XMLSchema

RDB

Relational database. A database organized in terms of relations between data

redefine

Allows you to redefine simple and complex types, groups and attribute

 

groups from an external schema file in the current schema

reference

A property to define a local object by reference to a global object. The

 

referenced (local) object has the same properties as the reference (global)

 

object

restriction

Derivation of a simple type or a complex type to restrict the values of their

 

base type

reverse-

Process of examining and recovering data or source code from a file that is

engineering

then used to build or update an XML model

schema

Diminutive for XML Schema or XML Schema Definition (XSD). It defines

 

the structure and data types of an XML document

scope

Sphere of action of an object. It can be local (within a parent object) or

 

global (within a model)

selector

An XPath expression that selects a set of elements for an identity constraint

 

(unique, key or keyRef)

 

 For more information on XPath expressions, see section Defining an

 

identity constraint selector in chapter Building an XML model

sequence

A group particle indicating that child elements must appear at least once in

 

the order of their declaration

simple content

Allows you to extend or restrict the values of a complex type supporting

 

character data or a simple type

simple type

A data type definition for the value of elements or attributes with text-only

 

content

SQLX

XML extension of the Structured Query Language

stereotype

Sub-classification used to extend the semantics of an object without changing

 

its structure. It can be predefined or user-defined

target namespace

Namespace of all the schema elements in the model. Its name is a URI which

 

does not refer to any file but only to an assigned name. A prefix can be

 

assigned to the namespace. All the schema elements with this prefix in their

 

start-tag will be associated with the namespace

type

Data type. It can be predefined or user-defined, simple or complex.

XSM User’s Guide

269

Page 281
Image 281
Sybase XML manual XSM User’s Guide 269