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Sybase XML manual Generating an XSD, a DTD or an XDR file, Why generate an XSD file?

Models: XML

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Generating an XSD, a DTD or an XDR file

Generating an XSD, a DTD or an XDR file

PowerDesigner allows you to generate an XSD, a DTD or an XDR file from an XML model.

File preview

You can have a preview of an XSD, a DTD or an XDR file by clicking the

Preview tab of an XML model property sheet.

Why generate an XSD file?

You can generate an XSD file for different reasons:

♦It is XML-written, so it can be read by any plain text editor

♦It describes the structure and data types of an XML document

♦It respects the W3C Recommendation for XML Schema

Why generate a DTD file?

You can generate a DTD file for different reasons:

♦It is XML-written, so it can be read by any plain text editor

♦It describes the content of an XML document

♦It respects the W3C XML Specification DTD

Why generate an XDR file?

You can generate an XDR file for different reasons:

♦It is XML-written, so it can be read by any plain text editor

♦It is a simplified XSD file

♦It respects the W3C Note on XML-Data

202	PowerDesigner

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Sybase XML manual Generating an XSD, a DTD or an XDR file, Why generate an XSD file?, Why generate a DTD file?

Contents

Sybase PowerDesigner 11.1Last Revised June Contents 101 Managing external shortcuts through references and data100 102Working with an XML model 139 169 Why reverse engineer an XSD, a DTD or an XDRHow to reverse engineer an XSD, a DTD or an XDR Mapping XML Model objects to OOM objects 171Exchanging data with databases supporting XML 215 ViiViii Audience SubjectDocumentation primer Object Oriented Model Getting Started Conceptual Data Model User’s Guide To work with the CDMPhysical Data Model User’s Guide Business Process Model User’s GuideBeforeInsertTrigger template Typographic conventions BibliographyXii Contents XML Model BasicsFunctional overview What is an XML model? Demo modelsAbout XML Objects in an XML model Tool Object Description XSDObjects in a diagram Tool Element symbol Group symbol Complex type symbol Tool Sequence symbol Choice symbol All symbolAll Choosing the XML language of an XML model Defining the XML model environmentNot certified resource file ™ To change the XML language of an XML model Changing the XML language of an XML modelLanguage Description Changes concerning simple and complex types Selecting extended model definitions at model creation Option DescriptionDefining model options XML model extended dependencies ™ To define XML model optionsDefining the XML model environment Defining model properties Defining an XML model™ To define the properties of an XML model Model General Property DescriptionModel Detail Button Moves item Model ItemsTool Tooltip Description Model External Schemas Model Namespaces XML Model Basics Creating an XML model Model PreviewCreating an XML model using the New model option ™ To create a new XML model using the New model optionDefining an XML model List of templates ™ To open an existing XML model Opening an existing XML modelDetaching an XML model from the workspace ™ To detach an XML model from a workspaceModel Saving and closing an XML modelSaving an XML Closing an XML modelDefining an XML model Building an XML model XML diagram basics Defining an XML diagramWhy build an XML diagram? Group Symbols feature Creating an XML diagramExpand/Expand All/Collapse/Arrange Symbols features Defining elements Defining element properties Element general properties Global and local elements in XDR filesDefining elements XDR files Property orElement detail properties Element attributes properties Building an XML modelElement mapping properties Element constraints propertiesElement Sources Attributes Mapping Creating an element™ To create an element from the palette Defining elements How to link a child object to an element? Tool Action ResultDefining the attributes of an element Pointer indicationsBuilding an XML model Attribute general properties Global and local attributes in XDR filesDefining attributes Attribute detail properties Attribute valuesElement values with XDR Adding an attribute to an element™ To add an attribute to an element Linking child elements to a parent element Modifying element display preferencesPreference Description Group particles Defining group particlesGroup particle Value of the order attribute in XDR Group particles properties Items listCreating a group particle ™ To create a group particle from an element property sheetName and code uniqueness From the paletteHow to link a child object to a group particle? Clicking an element symbol with the Element toolDefining Any properties Any general properties ™ To create an Any Modifying the Any display preference Defining Any Attribute propertiesFor example Any Attribute general properties Defining identity constraints Defining a unique constraintUnique general properties Unique fields propertiesDefining a key constraint Key general properties Defining a keyRef constraintKey fields properties Defining identity constraints KeyRef general properties Creating an identity constraintKeyRef fields properties Defining an identity constraint selector XPath abbreviated syntax Syntax DescriptionDefining selector general properties ™ To display a selector property sheetDefining an identity constraint field Defining field general properties ™ To create an identity constraint fieldBuilding an XML model Defining groups Defining a group of elementsDefining group properties Groups in DTD and XDR files Creating a group of elements ™ To create a group of elements from the paletteDefining groups How to link a child object to a group of elements? Modifying the group display preference Defining a group of attributesDefining attribute group properties Attribute group general propertiesAttributes Attribute groupProperties Creating an attribute group ™ To create an attribute group from the Browser tree viewDefining groups References Data typesExample of shortcuts through a reference and a data type Defining simple types What is a simple type?Type of derivation Description Creating a simple type Defining simple type propertiesModifying the simple type display preference ™ To create a simple type from the Browser tree viewBuilding an XML model What is a complex type? Defining complex typesDefining complex type properties Complex type general propertiesComplex type detail properties Complex type attributes propertiesSources Complex type mapping propertiesComplex Type Icon Tool DescriptionModifying complex type display preferences Creating a complex type™ To create a complex type from the palette How to link a child object to a complex type? Pointer indications ™ To create a simple content Defining simple content propertiesSimple content General property™ To create a complex content Defining complex content propertiesComplex content General propertiesDerivation in element property sheet Defining derivationsDeriving by extension 102™ To define a derivation by extension Defining extension103 Restriction on a simple type Deriving by restriction104 Restriction detail Defining restriction facetsRestriction general 105Enumerations Facet generalRestriction 106Restriction patterns 107™ To create a restriction on a simple type Creating a restriction on a simple type108 109 110 ™ To create a restriction on a complex type Restriction on a complex typeEnumeration and Pattern facets 111Deriving by list 112™ To define a simple type derivation by list Deriving by union113 ™ To define a simple type derivation by union Union generalUnion types 114Defining annotations 115Annotation general property Defining annotation propertiesDefining documentation properties Annotation items propertiesDocumentation general properties Documentation contentDefining application information properties Application information general propertiesCreating an annotation Application information content118 119 Defining notation properties Defining notations120 ™ To create a notation from the Browser tree view Creating a notation121 122 Defining entitiesDefining entity properties Entity name Reference Value™ To create an entity from the Browser tree view Creating an entity123 124 Defining import properties Defining import, include and redefineDefining an import Import general™ To create an import from the Browser tree view Creating an import126 Include general Defining an includeDefining include properties 127™ To create an include from the Browser tree view Defining a redefineCreating an include 128Redefine general Defining redefine properties129 ™ To create a redefine from the Browser tree view Creating a redefineRedefine items 130131 Defining business rule properties What is a business rule?Defining business rules Business rule general properties133 Creating a business ruleBusiness rule expression property Type Description Example™ To create a business rule from the List of Business Rules 134Applying a business rule to an XML object 135™ To apply a business rule to an XML object 136Column in the List of business rules 137138 Working with an XML model 139XML model check options Levels of problem severityChecking an XML model 140Automatic correction Selecting objects in the diagramXML model object selection in the Check Model 141™ To check an XML model Checking an XML model142 Selecting all or clearing all check boxes 143Dockable result window ™ To display errors and warnings selected in the last checkDisplaying previously applied check options in an XML model 144Contextual menu Making corrections based on XML model check resultsDisplay the Check toolbar 145™ To make manual corrections to an XML model Making manual corrections to an XML modelMaking automatic corrections to an XML model ™ To make automatic corrections to an XML modelExistence of particle XML Model objects verified by Check ModelGroup particle check Invalid cardinalityUndefined identifier Model checkIdentifier uniqueness Shortcut code uniquenessMissing namespaces Business rule check in an XSMData source check Business rule name and code uniquenessExistence of model File checkData source name and code uniqueness 150Existence of external file location Entity checkEmbedded file name uniqueness Entity name and code uniquenessSimple type check Include checkComplex type check Element name and code uniqueness Element checkExistence of attribute Undefined typeUndefined reference 154Group name and code uniqueness Group check155 Attribute name and code uniqueness Attribute checkNotation check 156Undefined notation Attribute group checkNotation name and code uniqueness Attribute group name and code uniquenessRedefine check Undefined schema location and namespaceImport check Existence of attributesKey name and code uniqueness Key checkExistence of component Existence of fieldsKeyRef name and code uniqueness KeyRef check160 Unique name and code uniqueness Unique check161 Extended object name and code uniqueness Extended object checkExtended link check Extended link name and code uniquenessRestriction check Replication checkExtension check Partial object replicationExistence of facet Simple type list check164 Existence of items Simple type union checkAnnotation check 165Defining data sources in an XML model Mapping objects in an XML modelUnderstanding object mapping 166™ To create a data source in an XML model Data source properties in an XML modelCreating a data source in an XML model 167168 169 Mapping XML Model objects to PDM objectsMapping elements XML Model object PDM object170 Mapping complex typesTool Description 171 Mapping XML Model objects to OOM objectsXML Model object OOM object ™ To create a mapping for an element Creating a mapping for an XML object172 173 Create From Sources and Generate Mapping tools 174™ To modify the mapping of an attribute Modifying the mapping of an attribute175 Move Manipulating XML objects graphicallyLocal objects 176™ To convert a local object into a global object Global objectsExample converting a local object into a global object Drag and dropAfter conversions 178Comparing and merging XML models 179180 Generating an XML model from a Physical Data ModelGenerating XML Model objects PDM object Generated object in an XML modelGenerate new XML Generating and updating an XML modelXML model naming conventions 181XML model Update existingDefining XML model generation options Clearing the Preserve modifications check boxCheck model before generation 183™ To generate a new XML model from a PDM Generating a new XML model from a PDM184 185 Updating an existing XML modelGenerating an XML model from a package Preserve modifications ResultPreserve modifications ™ To update an existing XML model by generating from a PDM186 Merging models 187188 Generating an XML model from an Object- Oriented ModelOOM Object Generated object in an XML model 189 190 191 ™ To generate a new XML model from an OOM Generating a new XML model from an OOM192 193 ™ To update an existing XML model by generating from an OOM 194195 Creating an XML model report What is a report?Editing an XML model report ™ To create a model report197 Language in a template Inserting diagram198 199 200 201 Why generate an XDR file? Why generate an XSD file?Why generate a DTD file? Generating an XSD, a DTD or an XDR fileDefining generation targets Defining generation parametersCheck model 203Defining generation tasks Using the Move up or down arrowsDefining generation options 204205 How to generate an XSD, a DTD or an XDR file?Parameter entities during DTD generation Model targeted with Generated file206 207 How to reverse engineer an XSD, a DTD or an XDR file? What is reverse engineering?Why reverse engineer an XSD, a DTD or an XDR file? Reverse engineering an XSD, a DTD or an XDR fileReverse engineering to a new XML model Reverse engineering optionsReverse engineering target models Convert Unique References210 211 Reverse engineering to an existing XML model 212Auto-layout 213214 Exchanging data with databases supporting XML 215Why use XML in databases? 216Mapping XML objects to PDM objects Generating an annotated schema for Microsoft SQL Server217 218 219 220 221 Extended model definitions 222Annotated schema preview 223224 Reinforcing mapping with extended attributes 225226 Annotation Description227 228 229 ™ To generate an annotated schema for Oracle Generating an annotated schema for Oracle230 231 232 233 234 235 236 237 Generating a DAD file for IBM DB2™ To generate a DAD file for IBM DB2 Type of storage Type of mapping DescriptionGenerating a DAD file for IBM DB2 238239 240 241 242 DAD file preview 243244 Extended attribute Description245 246 247 248 ™ To generate SQL/XML queries Generating SQL/XML queries249 Generating SQL/XML queries 250251 252 253 254 Generating from an XML model 255256 Generation basicsTarget models parameters Generation option DescriptionGenerating from an XML model 257258 Generating an XML model from an XML model Why generate an XML model from an XML model?259 Generating an XML model from an XML model 260Generating a new XML model from an XML model 261™ To generate a new XML model from an XML model 262Updating an existing XML model 263264 265 266 267 268 XSM User’s Guide 269 XML language UnionUnique XPathIndex 271PowerDesigner 272273 274 IBM DB2275 276 277 XML278