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The technological foundation of smart manufacturing consists of cyber-physical systems and the Internet-of-Things (IoT). Each IoT device in a smart factory can be coupled with a digital twin, that is, a dynamic virtual representation of the physical system across its life-cycle using real-time sensor data. Currently, the manufacturing process itself, the involved devices, and how they interact, is designed by human experts in a traditional way. We envision an architecture where humans can instead specify a goal and take advantage of technologies such as digital twins to automatically compose the corresponding physical processes, sharing some analogies with the notion of Web service composition.

Audio recordings and the corresponding transcripts are often used as prosthetic memory (PM) after meetings and lectures. While current research is mainly developing novel features for prosthetic memory, less is known on how and why audio recordings and transcripts are used. We investigate how users interact with audio and transcripts as prosthetic memory, whether interaction strategies change over time, and analyse potential differences in accuracy and efficiency. In contrast to the subjective user perception, our results show that audio recordings and transcripts are equally efficient, but that transcripts are generally preferred due to their easily accessible contextual information. We further identified that prosthetic memory is not only used as a recall aid but frequently also consulted for verifying information that has been recalled from organic memory (OM). Our findings are summarised in a number of design implications for prosthetic memory solutions.

Nowadays, digital and paper documents are used simultaneously during daily tasks. While significant research has been carried out to support the re-finding of digital documents, less effort has been made to provide similar functionality for paper documents. In this paper, we present a solution that enables the design of cross-media Personal Information Management (PIM) user interfaces helping users in re-finding documents across digital and physical information spaces. We propose three main design requirements for the presented cross-media PIM user interfaces. Further, we illustrate how these design requirements have been applied in the development of three proof-of-concept applications and describe a software framework supporting the design of these interfaces. Finally, we discuss opportunities for future improvements of the presented cross-media PIM user interfaces.

Popularity and affordability of mobile computers, especially tablets and smart phones, is considerably rising, providing an access capability for different user groups to various ICT services. Nevertheless, software solutions and hardware devices often seem not suitable enough for some target groups, like people with complex communication needs. In order to gain understanding of the challenges for usability and accessibility requirements gathering for ICT services for aided augmentative and alternative communication (AAC), this paper presents directions towards building usability requirements taxonomy for mobile AAC services. Analysis of influential factors for building proper requirements specification for an AAC service is given. Outlines for new paradigm of so-called augmentative requirements engineering (ARE) are presented, demanding holistic view on service requirements concerning users abilities and needs, service domain and associated intermediary users.

Submitted by Deyse Queiroz (deysequeirozz@hotmail.com) on 2019-03-06T18:13:33Z No. of bitstreams: 1 SÔNIA LEILA FERNANDES SILVA - TESE PPGEE 1999..pdf: 21321110 bytes, checksum: 615920c3433dadab02101808cd030e8b (MD5) Made available in DSpace on 2019-03-06T18:13:33Z (GMT). No. of bitstreams: 1 SÔNIA LEILA FERNANDES SILVA - TESE PPGEE 1999..pdf: 21321110 bytes, checksum: 615920c3433dadab02101808cd030e8b (MD5) Previous issue date: 1999-11 Aplicações recentes de banco de dados são tipicamente orientadas a um grande número de usuários não especialistas que necessitam ter acesso a interfaces adequadas a facilitar sua interação com o sistema. Adicionalmente, a incorporação do tempo em sistemas de banco de dados é uma característica importante em certas aplicações. De fato, diversos modelos de dados temporais e suas correspondentes linguagens de consulta textuais foram propostos. Contudo, existe pouca investigação sobre linguagens visuais para consultar bancos de dados temporais. Nosso trabalho tem como objetivo atender a tal necessidade. Em particular, propomos um ambiente visual de consultas, denominado T V Q E (Temporal Visual Query environment), o qual facilita a interação do usuário com bancos de dados históricos. O sistema adota uma representação diagramática do esquema conceituai do banco de dados (incluindo classes e relacionamentos temporais) e uma "agenda gráfica" como metáfora de interação. Usuários não especialistas em banco de dados são liberados de dificuldades sintáticas, típicas de linguagens textuais, e eles podem expressar consultas temporais através de operações gráficas elementares. Diferente de muitas propostas no campo de linguagens visuais de consulta, a linguagem sobre a qual o TVQE é baseado é fornecida com sintaxe e semântica formal. TVQE é baseado em um conjunto mínimo de primitivas gráficas temporais (TGPs), as quais são definidas sobre um modelo gráfico de dados temporal ( TGM ) , com sintaxe visual e semântica baseada em objeto. Concentramo-nos principalmente nos aspectos formais do TVQE. Fornecemos também algumas idéias de mecanismos visuais de interação e questões relacionadas à implementação. Recent database applications are typically oriented towards a large set of non-expert users, and therefore, they need to be equipped with suitable interfaces facilitating the interaction with the system. Moreover, the incorporation of time in database systems is a desirable feature. Indeed, severals temporal data models and the corresponding textual query languages have been proposed. However, there is a limited amount of research concerning the investigation of user-oriented languages for querying temporal databases. Our proposal addresses such a need. In particular, we propose a visual query environment, namely TVQE (Temporal Visual Query Environment), which provides an easier interaction of the user with temporal databases. The system adopts a diagrammatic representation of the database schema (including temporal classes and relationships) and a "graphical notebook" as interaction metaphor. In our approach, non-database experts are released from syntactical difficulties which are typical of textual languages, and they can easily express temporal queries by means of elementary graphical operations (e.g. click on a node label). Differently from many proposals in the field of visual query languages, the language underlying TVQE is provided w i t h formal syntax and semantics. It is based on a minimal set of temporal graphical primitives (TGPs), which are defined on a Temporal Graph Model (TGM), with visual syntax and object-based semantics. We mainly concentrate on the formal aspects of TVQE, and provide some ideas on the visual interaction mechanisms and implementation issues.