all presentation material copyright eurostep limited ® exff u2e demo slideshow david price

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exff u2e demo slideshow

David Price

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The demonstration

• This slideshow is screen shots showing the following– Creating a UML model using an exff template

for a specific UML tool• The tool used has OMG XMI as its native file format• XMI is an OMG-standardized XML format for UML

models

– Transforming the UML as XML into EXPRESS text

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The demo software

• The demo uses the following software– Poseidon Community Edition UML Tool (Java-based)– An exff DOS batch file to execute the

transformation– A command line WinZip utility to extract the XMI

file– Two exff XSLT stylesheets that perform the

transformation• One adds a DOCTYPE to the XMI file providing the second

XSLT stylesheet with access to the DTD• The second performs the actual transformation

– MSXSL to execute the XSLT– Notepad to view and save the EXPRESS

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Start UML Tool

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Tool layout

list of UML diagramsand model elements

enter/select details ofUML model element here

current diagram area

menus and buttons to create model elements

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Open exff template

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Open exff template(2)

template file

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The template built-in EXPRESS

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Save template with schema name

make UML file and model name the same

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Rename diagram and model

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Rename diagram and model(2)

diagram name

model name – same as UML file name

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Add elements following exff guidelines

• We add:– a couple of UML Class which = EXPRESS Entity– a UML Association with = EXPRESS attribute

• If the association and target end of the association have the same name, the attribute is added to the source end and the attribute name is the association name

– a UML Generalization which = EXPRESS subtype– a UML Attribute of type Class string which =

EXPRESS attribute of type STRING

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Inserting UML Class = Entity

select the class input button

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Click on the diagram to place it

the class is the box

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Type in name of class

class name field goes here

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Inserting UML Association = Attribute

select the association input button

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Select the two classes

the line is the association

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Name the association

type association name

notice the association ends."product" is the target end

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After selecing, "product", name the end

type end name

notice "product" is end type

remember association and target end named the same, results in attribute in source - "product_version"

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Inserting UML Generalization = subtype

select the generalization input button

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Start at subtype, drag towards supertype

the arrow is the generalization, the arrowhead is at supertype

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Review and then save

the list of model elements

the diagram

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Drop model file on u2ePos.bat

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Drop model file on u2ePos.bat (2)

u2ePos.bat

In this tool,files are "zargo"

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Watch the process execute

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Check the EXPRESS

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Save the EXPRESS from Notepad

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Conclusions

• This demo shows the creation a small subset of EXPRESS using a UML tool

• The exff goal is to support all of the structures of EXPRESS– and the constraints that are possible

• The same EXPRESS can be modified and read back into the UML tool using EEP to create the EXPRESS as XML and the exff EXPRESS-to-UML stylesheets– Graphical EXPRESS also generates EXPRESS as XML!

• We need your support to continue this development!