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# Comparison to other frameworks
- Tizen framework
- xdg-app
- ostro
## Organization of directory of applications
The main path for applications are: APPDIR/PKGID/VER.
Where:
- APPDIR is as defined above
- PKGID is a directory whose name is the package identifier
- VER is the version of the package MAJOR.MINOR
The advantage of such an organization is to allow several versions to live together.
This is required for multiple reasons (ie: roll back) and to comply with developers habits.
### Identity of installed files
All the files are installed as user "userapp" and group "userapp".
All files have rw(x) for user and r-(x) for group and others.
This allows any user to read files.
### Labeling the directories of applications
## Organization of data
The data of a user are contain within its directory and are labeled using the application labels
## Setting Smack rules for the application
For Tizen, the following rules are set by the security manager for each application.
System ~APP~ rwx
System ~PKG~ rwxat
System ~PKG~::RO rwxat
~APP~ System wx
~APP~ System::Shared rxl
~APP~ System::Run rwxat
~APP~ System::Log rwxa
~APP~ _ l
User ~APP~ rwx
User ~PKG~ rwxat
User ~PKG~::RO rwxat
~APP~ User wx
~APP~ User::Home rxl
~APP~ User::App::Shared rwxat
~APP~ ~PKG~ rwxat
~APP~ ~PKG~::RO rxl
Here, ~PKG~ is the identifier of the package and ~APP~ is the identifier of the application.
## What user can run an application`?`
Not all user are able to run all applications.
How to manage that?
[meta-intel]: https://github.com/01org/meta-intel-iot-security "A collection of layers providing security technologies"
[widgets]: http://www.w3.org/TR/widgets "Packaged Web Apps"
[widgets-digsig]: http://www.w3.org/TR/widgets-digsig "XML Digital Signatures for Widgets"
[libxml2]: http://xmlsoft.org/html/index.html "libxml2"
[openssl]: https://www.openssl.org "OpenSSL"
[xmlsec]: https://www.aleksey.com/xmlsec "XMLSec"
[json-c]: https://github.com/json-c/json-c "JSON-c"
[d-bus]: http://www.freedesktop.org/wiki/Software/dbus "D-Bus"
[libzip]: http://www.nih.at/libzip "libzip"
[cmake]: https://cmake.org "CMake"
[security-manager]: https://wiki.tizen.org/wiki/Security/Tizen_3.X_Security_Manager "Security-Manager"
[app-manifest]: http://www.w3.org/TR/appmanifest "Web App Manifest"
[tizen-security]: https://wiki.tizen.org/wiki/Security "Tizen security home page"
[tizen-secu-3]: https://wiki.tizen.org/wiki/Security/Tizen_3.X_Overview "Tizen 3 security overview"
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