ta as well as for supporting management decisions. Open Debate Support Services (ODSS), enabling user communities to work together in building open debates, adding diverse opinions, thoughts, and relevant contributions to each debate, while also collaboratively elaborating in order to either reach a final consensus or formulate an idea about possible best future actions. These services are supported by debate tools enabling complex aggregation of data. Data aggregation focuses on conflicting demands, positive and negative opinions, similar expressions, as well as open and structured reasoning. Even though the aforementioned services are all deployed in the Immigra- tionPolicy2.0 platform, they are not available to all users, since they have varying scope for accommodating the needs of the stakeholders. Hence, some services are offered at a local/regional level (e.g., to municipalities only), whereas other services have a national, transnational, or even EU scope. Table 14.1 illustrates the scope of each type of service. Service Delivery Platforms Table 14.1 Scope (Regional, National, EU) of the ImmigrationPolicy2.0 Services ImmigrationPolicy2.0 Services Scope Remarks Search services Regional, Search of information assets is offered National, EU at all levels. ImmigrationPolicy2.0 aims at providing an infrastructure for the future pan-European integration of information assets about migration policies. Regional, Information aggregation in National ImmigrationPolicy2.0 is performed at each individual site in order to avoid the localization problems/complexity, which incurs an EU level knowledge harvesting case. Regional, ImmigrationPolicy2. offers tools and National techniques for policy development in each of the pilot sites. MPSHS Transnational The problem of policies interoperability and harmonization is by its nature a transnational (cross- border) and EU level problem Regional ODSS services are offered at local/ regional level Envisaged typical usage of the Immigration Policy? 2.0 services per user group has a