Javier Diaz

WW3C mobile web best practices evaluation of an educational website

This article presents the experience of a heuristic evaluation on the mobile website of the National University of La Plata, UNLP, based on the recommendations of the World Wide Web Consortium, W3C, for this type of interface. It also includes a brief reference to the methodology used during the development process, in which prototyping and evaluations had a leading role, taking into account the specific characteristics for being both an educational and a mobile website. The evaluation took place through two mechanisms, a manual or human revision and an automatized validation. This concluded with endless problems and errors discovered through both mechanisms. They are being analyzed and solved in order to achieve the quality of use required in the final version of the mobile website.

Services conceptualization within SOA/BPM methodology

The SOA/BMP methodology proposes a model for aligning business processes with the services providing the functionality required by them. Within such methodology, the conceptualization of services and their mapping with software components enable to reduce the gap between business processes life cycle and their executable versions. Although the methodology proposes a set of steps, the interactions between such steps still is to be formalized. The use of meta-models is an alternative for such formalization, since they enable to unambiguously define the syntax for the languages used in each step and the transformation rules between them, serving as a previous step towards automatic transformations. This work presents a proposal for integrating a meta-model for services - proposed in a previous work and integrated with BPM; and a meta-model for components - defined by the SCA (Service Component Architecture) standard. The contribution of this paper enables to formalize the interactions between two steps of the SOA/BPM methodology.

Process-Service Interactions Using a SOA-BPM-Based Methodology

Reducing the gap between the definition, modeling and management of business definition, modeling and management of business processes and the realization of the main processes functions through software services requires a methodological approach. Addressing such gap, this paper focuses on the interactions between the activities of a business process and the functionality provided by software services. It presents a meta-model to formally specify such interactions. The proposed meta-model is instantiated through a case study. Lessons learnt through the development of an example were used to define a graphic editor prototype, as an automated tool for managing interactions between business processes and software services. The proposed approach enables the alternative application of top-down and bottom-up analysis techniques for modeling processes and services, and assists developers with an integrated tool for modeling business processes and software services in a seamlessly combined way.

Applicability of Cybersecurity Standards in Ecuador - A Field Exploration

The evolution of information and communications technology (ICT) as well as cyberspace, walks along with collateral hazards. These need to be managed, in order to minimize the affecting impacts on information, which often appear to be vital for the operability of nations. The fulfillment of such risk reduction has been achieved with the development of worldwide, well known and widespread regulations, rules, manuals, guides and procedures for good Cybersecurity practices. Its impact has been significant in the construction of national policies within each country, due to its influence beyond the borders and the needed international cooperation for its elaboration. However, the current study presents a description, scope and coverage of both the standardization organizations as well as standards and specifications related to Cybersecurity, in order to establish a guide for researchers and information security specialist in the protection of assets and information of companies. Furthermore, it also demonstrates a systematic non-experimental field research that considered Ecuadorian institutions and companies to identify the current status of their adoption. Finally, the obtained results allow the applicability of standards, in order to protect enterprise information, which in turn will be able to serve in the future as input for the definition of national policies in such context.

Adapting usability heuristics to evaluate Facebook according to elderly

A usability inspection is an evaluation method carried out by one or more experts in HCI, individuals with solid theoretical and practical foundations for the formal and objective observation of a product. One of the most used methods is the heuristic evaluation, a term coined by Jakob Nielsen in 1989 that consists of using a set of usability heuristics to examine a product and analyze its degree of compliance. Due to the ever-growing use of Facebook by older adults, a heuristic evaluation of this application is carried out in this article, where principles of usability have been adapted to fit the profile of an older adult and the interaction with collaborative aspects and groupware functions that are characteristic of social networks. The results of this process of inspection will be of utmost importance to understand whether the current applications consider the older adult as a possible user, respecting principles of usability consistent with their profile.

Data restoration and file carving

This document proposes to make a contribution to the conceptualization and implementation of data recovery techniques through the abstraction of recovery methodologies and aspects that influence the process, relating human motivation to research needs, whether these are for the Auditing or computer science, allowing to generate classification of recovery techniques in the absence of the metadata provided by the filesystem, in this sense have been proposed to file carving techniques as a solution option. Finally, it is revealed that while many file carving techniques are being implemented in other tools, they are still in the research phase.

Analysis of Methodologies of Digital Data Collection in Web Servers

When an incident or security threat occurs, in which a system resource is compromised or potentially exposed to unauthorized access, computer forensics techniques and methodologies must ensure that it is possible to adequately determine what, who, when and how the incident occurred, as well as to ensure and preserve the evidence collected. This paper explore two methodologies of digital data collection, the first called Preventive Approach-Data Collection a priori or Forensic Readiness and the second called Reactive Approach - Post-Collection of a security event to comparatively analyze its performance based on certain criteria and control points established over HTTP and HTTP/2 web servers.

Recommender System Based on Latent Topics

Collaborative filtering is one of the most used techniques in recommender systems. The goal of this paper is to propose a new method that uses latent topics to model the items to be recommended. In this way, the ability to establish a similarity between these elements is incorporated, improving the performance of the recommendation made. The performance of the proposed method has been measured in two very different contexts, yielding satisfactory results. Finally, the conclusions and some future lines of work are included.

Are Google Office Applications Easy for Seniors?: Usability Studies with 120 Elderly Users

The Computer Science School of the UNLP, constantly works with the area of education, bringing ICTs to sectors that are excluded from the information society. Since 2010, it began working with the senior citizen sector. In 2015 they took the GDocs and GDrive course with the possibility to participate in a usability research. The students, about 120 seniors between 68 and 90 years of age, belonged to PAMI, the National Institute for Retirees and Pensioners of Argentina. The main objective of this poster is to share this experience for which usability studies were developed in order to find out if Google collaborative office apps are easy to learn and use by seniors. These form a broader research work, of great value to the discipline of HCI, where the focus of study is a community of people that are not usually considered as potential users of the products that are being developed today.

Mejora de la monitorización y ejecución de procesos de negocio con integración y socialización

The business process-oriented approach is an important aspect for organizations and receives great attention from the scientific community. Technological advances for incorporating new computational models distributed and social aspects in the execution of the business process and the tools that support it, have not kept pace with growth in providing tools to automate process management of business. The review of modern technological aspects in BPM - distribution processes and activities including social aspects related to execution - contributes to improve the results of business process deployment, execution and monitoring stages. This paper proposes a requirements specification for a prototype process management tool that incorporates aspects of distributed software to enrich execution traces and incorporate social features to its management.