Abstract—This paper introduces another approach that addresses interoperability in AAL domain, the Decentralised Service Delivery Architecture. The approach was developed Within the Advanced Support for Independent Living; Hu- man Lifecycle Approach in Senior Housing (Lily) project, funded by the Ambient Assisted Living Joint Programme. The approach has a decentralised architecture and therefore dif- fers from traditional approaches where services are provi- sioned services via central nodes, such as service portals or hubs, dedicated home platforms or systems. The idea of the architecture is to use linked descriptions of samples of service- product continuum that can be discovered using certain crite- ria, and thus provisioned to inhabitants of intelligent envi- ronments. The paper presents certain particularities of the architecture and highlights important associated aspects, such as ethics and trust.