This ontology designed and developed in order to represent the detected intentions from the Web Lifestyle Data Aggregator. In particular, it seeks to represent what is involved in the gathering of data from the web and social lifestyle of user on the Internet. We decided, therefore, to develop the ontology using the Protégé v5.0, a free, open-source ontology editor from the Stanford University. The outcome of Protégé is available on the following URL: http://carre.kmi.open.ac.uk/ontology/lifestyle.owl The presented ontology is generic and can support different type of providers (e.g. web searches, Facebook, Twitter etc.). Additionally, the predefined intentions are also generic supporting the majority of intentions in the Web. In the context of CARRE, we utilize, as a first attempt, the web searches as provider and we only upload the relevant intentions (health and travel) to CARRE in the private RDF repository. A user (representing an individual person whose data is being represented using the terms of this ontology) has connections. A connection represents that a Web Lifestyle Data Aggregator of a particular personal computer of user provides intentions for particulars providers. A connection is therefore associated with a UUID (Universal Unique Identifier) that represents an installation of the aggregator. A provider can be the web searches, Facebook or Twitter. A measurement is associated with a provider and a connection in order to declare the connection (i.e. the Web Lifestyle Data Aggregator of a particular personal computer) from which a measurement came. Every measurement must have a date at which the detected intention was taken, a weight which defines the importance of an intention and of course the detected intention that is only relevant to CARRE.