The QoCIM framework

The QoCIM (Quality of Context Information Model) framework provides a solution to handle the meta-data of context information concerning their quality. "Context information is any information that can be used to characterize the situation of an entity. An entity is a person, place, or object that is considered relevant to the interaction between a user and an application, including the user and application themselves" (1). The term QoC (Quality of Context) refers to "any information that describes the quality of information that is used as context information" (2). The QoCIM framework contains a meta-model able to represent heterogeneous, primitive or composite Quality of Context criteria used to evaluate the quality of context information. The framework also provides functions and tools to analyse and transform the QoC meta-data all along the life cycle of the context information from their production to their consumption. The framework QoCIM is part of the contributions of the INCOME project.

(1) A.K. Dey. Architectural Support for Building Context-Aware Applications. PhD thesis, College of Computing, Georgia Institute of Technology, December 2000. http://www.cc.gatech.edu/fce/ctk/pubs/dey-thesis.pdf

(2) Thomas Buchholz, Axel Kpper, and Michael Schiffers. Quality of context: What it is and why we need it. Proceedings of the 10th International Workshop of the HP OpenView University Association(HPOVUA). Hewlet-Packard OpenView University Association, 2003. http://www.nm.ifi.lmu.de/pub/Publikationen/bks03/PDF-Version/bks03.pdf

Contributors

Pierrick MARIE - contact at pierrickmarie dot fr

Publications

Pierrick Marie, Thierry Desprats, Sophie Chabridon, Michelle Sibilla. The QoCIM Framework: Concepts and Tools for Quality of Context Management. Context in Computing. Patrick Brézillon, Avelino J Gonzalez (Eds.), Springer, 11, p. 155-172 http://link.springer.com/chapter/10.1007/978-1-4939-1887-4_11
Pierrick Marie, Léon Lim, Atif Manzoor, Sophie Chabridon, Denis Conan, Thierry Desprats. QoC-aware context data distribution in the Internet of Things (regular paper). ACM Workshop on Middleware for Context-Aware Applications in the IoT (in conjunction with Middleware 2014) (M4IOT 2014), Bordeaux, 08/12/2014-12/12/2014, ACM, p. 13-18 http://doi.acm.org/10.1145/2676743.2676746
Pierrick Marie, Thierry Desprats, Sophie Chabridon, Michelle Sibilla. Extending Ambient Intelligence to the Internet of Things: New Challenges for QoC Management (regular paper). International Conference on Ubiquitous Computing and Ambient Intelligence on Personalisation and User Adapted Services (UCAmI 2014), Belfast, UK, 02/12/2014-05/12/2014, Ramon Hervas, Sungyoung Lee, Chris D. Nugent, Jose Bravo (Eds.), Springer, Lecture Notes in Computer Science 8867, p. 224-231 http://dx.doi.org/10.1007/978-3-319-13102-3_37

Licence

The source code of the QoCIM framework is licensed under the GNU Lesser General Public License.

Developer’s corner

Get the source code

To get a public, and anonymous, access to the Git repository of the source code:

$> git clone https://github.com/pierrick-marie/qocim.git

Use maven modules

QoCIM uses Maven for software project management. We suggest using also Maven for software management of projects using QoCIM. Then, we provide a maven repository. Add the following code as Maven repository to use QoCIM (in a POM file):

<!-- QoCIM framework -->
<repositories>
  <repository>
    <id>github</id>
    <url>https://maven.pkg.github.com/pierrick-marie/qocim</url>
  </repository>
</repositories>

You can use many module from QoCIM framework. For example, add the following code in your pom.xml file to get the main QoC model.

<dependency>
  <groupId>qocim.criteria</groupId>
  <artifactId>precision</artifactId>
  <version>1.1.1</version>
</dependency>

If you want to explore the precision criterion, you can use this dependency:

<dependency>
  <groupId>qocim.criteria</groupId>
  <artifactId>precision</artifactId>
  <version>1.1.1</version>
</dependency>

All the packages are listed here.

Because the packages are distributed on GitHub, you also need to configure the file settings.xml in your $HOME/.m2/ folder with the following code:

  <settings xmlns="http://maven.apache.org/SETTINGS/1.0.0"
	  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	  xsi:schemaLocation="http://maven.apache.org/SETTINGS/1.0.0
			      http://maven.apache.org/xsd/settings-1.0.0.xsd">
  <servers>
    <server>
      <id>github</id>
      <username>YOUR_GITHUB_USER_NAME</username>
      <password>YOUR_GITHUB_TOKEN</password>
    </server>
  </servers>
</settings>

Don’t forget to replace YOUR_GITHUB_USER_NAME and YOUR_GITHUB_TOKEN with your personal information!

Please feel free to send any comments of review at: contact at pierrickmarie dot fr