ectives and best practices. This enables end-users to reengineer their current internal affairs. Semantic Interoperability Guidance: Public administrators and policy makers are guided by the platform on how to use semantically awareness schema definitions in order to build the basis for an EU-wide standardization of mes- sages and policies in migration area. This semantic knowledge is shareable among systems to enable collaborative evolution of National and EU ontolo- gies/systems on migration assets. 14.4 ImmigrationPolicy2.0 Platform The following paragraphs present the main entities and analyze their fundamental characteristics that compose the ImmigrationPolicy2. platform. These are the following: The ImmigrationPolicy2.0 Portal: A Web Interactive System which provides electronic-based point of secure access to ImmigrationPolicy2.0 information and content, retrieved and processed from diverse sources, in a unified and user-friendly way. This system is based on collaborative Web2.0 technologies (such as collabora- tive forums, blogs, Wikis, etc.). The Immigration2.0 portal serves a single secure access point to the full range of Immigration2.0 services, including search services, harvesting knowledge and migration intelligence services, policy modeling services, as well as harmonization services. Different portal instances may be deployed in order to accommodate the peculiar needs of the various sites. The portal Participatory Immigration Policy-Making infrastructure incorporates security mechanisms and policies that enhance the Immigration Policy2.0 platform and tools with proper authentication and authori- zation properties and Single-Sign-On (SSO) procedures, enclosing end-user's pref- erences and requirements. The ImmigrationPolicy2.0 CMS: A Content Management System (CMS), accompanies the Portal and undertakes the creation, editing, management, and publishing of all the primary and processed content in a consistently organized fashion. Specifically, the CMS mainly provides Advanced content management tool