TY - BOOK ED - Krimmer, Robert ED - Prentza, Andriana ED - Mamrot, Szymon AB - This open access State-of-the-Art Survey describes and documents the developments and results of the Once-Only Principle Project (TOOP). The Once-Only Principle (OOP) is part of the seven underlying principles of the eGovernment Action Plan 2016-2020. It aims to make the government more effective and to reduce administrative burdens by asking citizens and companies to provide certain standard information to the public authorities only once. The project was horizontal and policy-driven with the aim of showing that the implementation of OOP in a cross-border and cross-sector setting is feasible. The book summarizes the results of the project from policy, organizational, architectural, and technical points of view. DO - 10.1007/978-3-030-79851-2 ID - OAPEN ID: ONIX_20210714_9783030798512_25 KW - Computer Applications KW - Special Purpose and Application-Based Systems KW - Programming Techniques KW - Software Engineering/Programming and Operating Systems KW - Computer Application in Administrative Data Processing KW - Computer and Information Systems Applications KW - Software Engineering KW - access control KW - communication systems KW - computer systems KW - cryptography KW - databases KW - Field Programmable Gate Array (FPGA) KW - gateways (computer networks) KW - information systems KW - internet protocols KW - network protocols KW - object-oriented design KW - object-oriented programming KW - object-oriented programming languages KW - signal processing KW - social networks KW - software architecture KW - software design KW - system architectures KW - Information technology: general issues KW - Expert systems / knowledge-based systems KW - Computer programming / software engineering KW - Operating systems L1 - https://library.oapen.org/bitstream/id/743caf3e-7e6c-46b3-b118-65e60ef228b5/978-3-030-79851-2.pdf LA - English LK - https://library.oapen.org/handle/20.500.12657/50047 PB - Springer Nature PY - 2021 SN - 9783030798512 TI - The Once-Only Principle : The TOOP Project ER -