View source for AM3/Use Cases/Linux Package Dependencies

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This AM3 use case titled '''Linux Package Dependencies''' has been implemented by [http://www.emn.fr/x-info/atlanmod/index.php/User:Doux Guillaume Doux] and initially published in April 2009. 

== Keywords  ==

AM3, Global Model Management, Dependencies Management , GraphML, Prefuse, Linux 

== Overview  ==

This use case describes how AM3 can be used to manage packages dependencies in distributions of '''Debian Linux''' based systems. It can be divided in two parts: 
* Discovery and Transformation to AM3 part, consisting in injecting the distribution package list into a model using [http://wiki.eclipse.org/index.php/TCS TCS] and then transforming the injected model into an AM3 megamodel. For this part, a specific AM3 extension has been created. 
* Visualization part, consisting in extracting the content of the megamodel to a GraphML model and then generate the visualization for this graph. 

An overview of this use case is presented in next figure:

[[Image:AM3UseCase-Linux Package Dependencies-Overview.png|700px|center|thumb|'''Linux Package Dependencies Use Case''']]

The main reason for using AM3 in this kind of use cases is that it allows managing them in a homogeneous way. With this approach we can use AM3 base features (e.g.: navigation between links), and also some specific features like visualization generation that can then be used for other use cases.

This use case is provided by [http://www.emn.fr/z-info/atlanmod INRIA AtlanMod] and its development has been supported by the [http://www.emn.fr/z-info/idmpp french IDM++ project] (ANR-07-TLOG-IdM++) and by the [http://www.modelplex.org IST European MODELPLEX project] (MODELing solution for comPLEX software systems, FP6-IP 34081). 

== Debian Package List Discoverer ==

The aim of this discoverer is to allow the injection of a '''Debian''' based distribution packages lists into a model and then to an AM3 megamodel. An overview of this process in presented in the following figure:

[[Image:AM3UseCase-Linux Package Dependencies-DiscoveryAndTransformationToAM3.png|700px|center|thumb|'''Discovery and Transformation to AM3''']]

== Visualization Generation ==

The aim of this part is to allow the visualization of the package dependencies graph. So, we choose to project the contents of the megamodel into a '''GraphML''' file. Then, this file can be used for rendering by a tool like [http://prefuse.org Prefuse].

To reach this aim, we use a generic transformation chain that can be used with any AM3 megamodel. This transformation chain allows the transformation of any megamodel containing entities and directed relationships into a graph. This process is shown in next figure:

[[Image:AM3UseCase-Linux Package Dependencies-VisualizationGeneration.png|700px|center|thumb|'''Vizualisation Generation''']]

== Sample ==

The next figure show the result of the rendering of a megamodel containing dependencies between packages:

[[Image:AM3UseCase-Linux Package Dependencies-SampleRenderedGraph.png|700px|center|thumb|'''Sample Rendered Graph''']]

== Documentation  ==

*[http://docatlanmod.emn.fr/AM3/UseCases/Linux_Package_Dependencies/AM3UseCase-Linux_Package_Dependencies-description.pdf Use Case - Linux Package Dependencies - Description]: General description of the use case, its objectives, its architecture and overall process, the different metamodels and models used, etc. 
*[http://docatlanmod.emn.fr/AM3/UseCases/Linux_Package_Dependencies/AM3UseCase-Linux_Package_Dependencies-install.pdf Use Case - Linux Package Dependencies - Installation &amp; Execution Guide]: How to install and execute the use case projects.

== Download  ==

*[http://docatlanmod.emn.fr/AM3/UseCases/Linux_Package_Dependencies/org.eclipse.gmt.am3.usecase.linuxpackagedependencies_v0-4.zip First complete version of the Linux Package Dependencies use case]. Note that all the sources contained in the archive are also available from the [http://wiki.eclipse.org/index.php?title=AM3/How_Install_New_AM3_From_SVN AM3 SVN]: you must install the '''org.eclipse.gmt.am3.platform.extension.am3navigability ''' plug-in for this use case to work properly.

[[Category:Modeling]] [[Category:MDD]] [[Category:AM3]] [[Category:AMMA]]