This paper introduces some technologies that are fit for an architecture of digital democracy or E-democracy. It aims at proposing an architectural style emerged from tested and validated approaches, without relying on some radical innovation. Firstly, we propose an input-system-output model of E-democracy and knowledge society. This model is subject to permanent optimization following a trial and error paradigm similar to the artificial intelligence method of backpropagation. Secondly, we describe and advocate for some technologies and methodologies such as Cloud, Service-Oriented Architecture, Agile Development, Web-Oriented Architecture, Semantic Web and Linked Data. Finally, we assemble all these technologies and methodologies in an architectural style that follows several key concepts such as flexibility and adapability, citizen-oriented software development or abstract notions like participation, deliberation and inclusion.Keywords: E-democracy, Cloud Computing, Services-Oriented Architecture, Knowledge Society, Agile Development, Semantic Web, Linked DataIntroductionOne of the salient matters of computing world is to expand its visions and horizons from a technical to a social dimension. Arguably, information and communication technology (ICT) may arrive with its new approaches and perspectives to build a better society. While ICT has evolved as a human-like universe transposed in mathematical and computational formalizations, it is now time for the public sphere to benefit from the scientific achievements of the virtual world. From a social perspective, these benefits may endeavor the development of E-society, which is either the information society (IS) or knowledge society (KS). Moreover, IS or KS are foundations for a better public sphere by supporting a democratic society.Digital democracy in knowledge society or Edemocracy (ED) is to many an extension of Egovernment, but we have already defined it as being more than this - a way of living [1]. Based on Maier's research [2] and extending ED with new instruments like E-petition under the guard of Justice, Figure 1 illustrates our proposed model.While Figure 1 has a generic perspective, ED should focus, on a bottom-up approach, on solving contextual problems (CPs) based on participation, deliberation and inclusion (PDI). Advocated by participative democracy proponents from antiquity [3] to modern [4] and contemporary times [5, 6], PDI is the key to ED and a metaphor for KS. Justice, seen as the backbone of democracy inspired by divinity [3, 4], is herein subject to permanent transformation through PDI on medium-long term, while some stability is required on short-medium term [6]. In addition, Figure 2 depicts the actors involved in the CP processes and their defining inter-relationships: committee of MPs (CMP), committee of citizens (CC), helping committee of citizens (HCC), nongovernmental organizations (NGO), social and professional associations (SPA) or political parties (PP) [1]. All of them co-work on a platform of CP (PCP) or instantiate a CP (ICP) only under the surveillance of committee of justice representatives (CJR).We have already brought several important amendments to other (representative) democratic models [1] advocating for: the increased role of citizenry, the way of selecting representatives, the crucial part of justice and the significant aspect of PDI. In addition, we only want to address the issue of establishing a better framework for collaboration and cooperation based on ICT. While this is subject of future extended research, we mention that E-bureaucracy is an improved and more objective (non-Kafkian) form of bureaucracy that helps monitoring ED by CJR and supports the actors involved in PDI. E-bureaucracy incorporates techniques and methods of web semantics, neural language processing, text mining, artificial intelligence (AI) etc. that conceive a substratum for (E-) justice in particular and PDI in general. …