The Once-Only Principle 
 The TOOP Project 

 -  Springer Nature  2021 
 - 1 online resource (241 pages) 
 - Lecture Notes in Computer Science; Information Systems and Applications, incl. Internet/Web, and HCI  12621 .
<br/><br/> 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. 
<br/><br/><label>Subjects--Index Terms: </label>Computer Application In Administrative Data Processing Computer Applications Programming Techniques Software Engineering/Programming And Operating Systems Special Purpose And Application-Based Systems