{"product_id":"an-access-definition-and-query-language-towards-a-unified-access-control-model-von-andreas-sonnenbichler","title":"An Access Definition and Query Language : Towards a Unified Access Control Model","description":"In this work we suggest a meta access control model emulating established access control models by configuration and offering enhanced features like the delegation of rights, ego-centered roles, and decentralized administration. The suggested meta access control model is named \\'\\'Access Definition and Query Language\\'\\' (ADQL). ADQL is represented by a formal, context-free grammar allowing to express the targeted access control model, policies, facts, and access queries as a formal language.\u003cdiv class=\"aw-variant-hidden-subtitle-div\" id=\"aw-variant-subtitle-9783731500889\"\u003e\u003ch3\u003e\u003c\/h3\u003e\u003c\/div\u003e","brand":"Libri","offers":[{"title":"Softcover - 9783731500889","offer_id":39456429801565,"sku":"9783731500889","price":36.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0622\/files\/986da2db-d32d-4524-8ff5-a0971294dec0.jpg?v=1780378353","url":"https:\/\/shop.autorenwelt.de\/products\/an-access-definition-and-query-language-towards-a-unified-access-control-model-von-andreas-sonnenbichler","provider":"Autorenwelt Shop","version":"1.0","type":"link"}