This research studies the implications of time in data modelling and its treatment in Temporal Data Models constructed for this objective' It searches solutions to the time representations in Information Systems based on relational databases' To reach our aim, we researched time concepts, temporal data models' and other solutions proposed in the literature related to this subject' Our main objective was to resolve the practical situations of an Information System project (case study of a telecommunications company in Brazil) where time treatment is essential. Solutions that incorporate Time representation in Extended Entity-Relationship Model (EE-R) are proposed. These solutions can be generalized to solve problems with similar characteristics' t INNTCE 1 Ir.{TnonuçÃo CoNsnsRAçÕBs INlcnts

The aim of this paper is to apply a systemic methodology to analyse the concept of info-inclusion which can guide strategic actions of institutions within civil society and within several levels of government. The paper provides a plan of action that, integrated with other tools, aims at fighting the technological and social gap. We apply Soft System Methodology (SSM), because it provides a holistic approach to info-exclusion. SSM is often used to analyse and resolve problems in complex social studies such as info-exclusion. An info-exclusion reduction project, developed by a university in the country region of Sao Paulo will be provided as a case study. This project is one of the several Brazilian initiatives to solve the problem of limited access to information technology tools. We start by contextualising info-exclusion in Brazil and follow with a review of SSM. We then introduce the concept of info-inclusion and apply SSM to it. We end with a discussion of the results obtained and with some suggestions for action and possible improvements.

Abstract-Defining a computational environment for radiology and image-diagnosis education requires the development of a model that covers the resident doctor's training necessities and creates the mechanisms necessary for the construction of this environment, especially integrating the various systems in use or in development, in a hospital school. This work presents a proposal to define strategies for the creation of a computational environment for radiology and image-diagnosis teaching, specifically aimed towards the education of the resident physician in this area. The Soft Systems Methodology (SSM) was used to elaborate a comprehensive model under a systemic focus and bring up actions for its implementation. Initially, the current radiology teaching structure will be contextualized, and information systems that could be applied to support this type of activity will be discussed. The next step will be the revision of the SSM and the application of each step proposed by this methodology within the medical residency context of a large Brazilian hospital school. This residencyeducation activity survey was performed through interviews, questionnaires and the review of the norms, criteria and minimum requirements for the accreditation of medical residency programs in Brazil. Considering the complexity of the doctor-training environment and the diversity of computer systems under development to support it, the systemic approach helps the understanding and can guide the necessary integration. An integratedenvironment frame, and its action plan, is proposed for radiology and image-diagnosis teaching. Finally, the strategies identified for its implementation are discussed.