Abstract

Abstract
The aim of this paper is to propose a recommendation system that considers users functionality levels regarding physical or psychological limitations. This paper describes a set of models and algorithms used under a tourism recommendation system based in users and points-of-interest (POI) profiles. Also, this proposal considers a different manner to classify POI including their accessibility levels, mapped with similar physical and psychological issues. In this study, based on the Design Science Research methodology, an architecture is proposed and a touristic recommendation system prototype where users are modelled with new types of information in addition to traditional approaches such as their levels of functionality regarding a set of physical and intellectual issues, is also presented. POIs are also modelled with the same information structure and maintain knowledge on their limitations against some health conditions.

Abstract
In the last decade, the use of smartphones has grown steadily. The way consumers interact with brands has changed owing to the accessibility of interne connection on smartphones, and ubiquitous mobility. It is crucial to understand the factors that motivate consumers to interact with smartphone advertisements and therefore what stimulates their decision to purchase. To achieve this goal, we proposed a conceptual model that combines Ducoffe's web advertising model and flow experience theory. Based on the data collected from 303 Portuguese respondents we empirically tested the conceptual model using a partial least squares (PIS) estimation. The results showed that advertising value, flow experience, web design quality, and brand awareness explain purchase intention. The study provides results that allow marketers and advertisers to understand how smartphone advertisements contribute to consumer purchase intention.

Abstract
Online citizen public participation in consultation and decision-oriented processes supported by local governments is a key ingredient for successful digital democracy. As the participatory process is a voluntary activity, social capital, and individual motivation can help to understand citizen engagement in the usage of electronic participatory platforms (e-participation). This study presents and discusses the results of a research model evaluated with 200 respondents who experienced e-participation. The research model integrates a well-known theory of information systems, UTAUT, with the social capital theory, and the individual motivators. We found that, besides the positive effects of UTAUT constructs, such as perceived usefulness, effort expectancy, and facilitating conditions on the intention to use e-participation; altruism also plays a role as a driver of the intention to use. Social capital partially impacts on the actual usage of e-participation. (C) 2018 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license.

Abstract
Traditional e-Commerce platforms tend to mimic existing physical store processes in which customers are given the opportunity to purchase only the available products without any type of personal customization or even without the possibility of being allowed to present a desired product/service to which the market might be able to respond. With this in mind, a prototype for an electronic negotiation platform directed at the tourism sector has been developed and focused on Douro Valley tourism operators, products and services. In our opinion this prototype might help to develop new business models drawn from the customers' willingness to have a personal tourism experience and not just something off the shelf.

Abstract
The topic of Smart Cities involves various aspects of convergence and support to necessarily safe activities, which are dependent on reliable data and reliable sources. The answer could be provided by means of the adoption model of Blockchain technologies for this purpose, applied to the different characteristics of the city from the electronic governance, the contracting of products and services, and the sensing or data collection. The multiple IoT objects and the multiple networks, together with the Blockchain technology, may result in safer and more efficient cities. This paper analyzes and deepens the concept of Smart Cities using Blockchain technology as a platform for safety and reliability of the data. It is intended to reflect critically on this topic, looking through the different aspects involving this concept and the way in which it can implement. It analyzes the Smart Cities and its ecosystems with the generic data models, integrated, with quality data and trusted information.