Expert Elicitation for Reliable System Design

This paper reviews the role of expert judgement to support reliability assessments within the systems engineering design process. Generic design processes are described to give the context and a discussion is given about the nature of the reliability assessments required in the different systems engineering phases. It is argued that, as far as meeting reliability requirements is concerned, the whole design process is more akin to a statistical control process than to a straightforward statistical problem of assessing an unknown distribution. This leads to features of the expert judgement problem in the design context which are substantially different from those seen, for example, in risk assessment. In particular, the role of experts in problem structuring and in developing failure mitigation options is much more prominent, and there is a need to take into account the reliability potential for future mitigation measures downstream in the system life cycle. An overview is given of the stakeholders typically involved in large scale systems engineering design projects, and this is used to argue the need for methods that expose potential judgemental biases in order to generate analyses that can be said to provide rational consensus about uncertainties. Finally, a number of key points are developed with the aim of moving toward a framework that provides a holistic method for tracking reliability assessment through the design process.Comment: This paper commented in: [arXiv:0708.0285], [arXiv:0708.0287], [arXiv:0708.0288]. Rejoinder in [arXiv:0708.0293]. Published at http://dx.doi.org/10.1214/088342306000000510 in the Statistical Science (http://www.imstat.org/sts/) by the Institute of Mathematical Statistics (http://www.imstat.org

A Multi-Model View of Process Modelling

International audienceSituatedness of development processes is a key issue in both the software engineering and the method engineering communities, as there is a strong felt need for process prescriptions to be adapted to the situation at hand. The assumption of the process modelling approach presented in this paper is that process prescriptions shall be selected according to the actual situation at hand i.e. dynamically in the course of the process. The paper focuses on a multi-model view of process modelling which supports this dynamicity. The approach builds on the notion of a labelled graph of intentions and strategies called a map as well as its associated guidelines. The map is a navigational structure which supports the dynamic selection of the intention to be achieved next and the appropriate strategy to achieve it whereas guidelines help in the operationalization of the selected intention. The paper presents the map and guidelines and exemplifies the approach with the CREWS-L'Ecritoire method for requirements engineering

The application of systems engineering on the building design process

The evolution in the design process is usually based on the choice of a method for designing the system, in which its preference is previously selected by a process available to use and not by an open selection process. An open system approach is both a technical approach to design concepts and a preferred business strategy that is becoming widely applied by manufacturers of large complex systems. Although systems engineering consider both the business and the technical needs of customers, their goals is to provide a quality product that meets all user needs. This paper describes the capabilities of using some available systems engineering standards (like EIA-632) in the design process. Then, a methodological approach will be proposed for the practice of requirements engineering by applying quality assessment and control to design in early phases. This paper also discusses the need for a rigorous systems engineering process, which incorporates open systems concepts and principles to make a design method more or less appropriate by promoting multiple sources of supply and technology insertion. To demonstrate the applicability and efficiency of those standards, an application case study focusing more on applying systems engineering concepts to the building design is described along with verification and validation processes

Visualization Skills Among Engineering Students Using Problem Based Learning Fogarty Model

Engineering Drawing subject’s offered to all students who are enrolled in the civil engineering, electrical engineering or mechanical engineering. These subjects develop skills in geometry drawing more professional. For the concept in Engineering Drawing, students need to have good visualization skills. Visualization is needed to help students get a start before translating into a drawing. To train these skills, a Problem Based Learning (PBL) approach will be implemented. The problem solving process repeatedly attempts to help the student correctly and accurately interpret the drawings of the engineering drawing. The process of learning using PBL method are specifically follow PBL Fogarty Model. This study examined readiness of visualization skills among engineering students through PBL Fogarty Model approach. A total of 68 students of engineering from institutions in Malaysia are involved in this study. The instruments used are Space Ability Test adapted from Bennett, Seashore and Wesman (1972). The findings show that students have a good level of visualization skills. As a result, the more individual a person achieves a good visual cognitive level, the easier it is to master the knowledge, ideas and approaches of the new learning method

Sistem Administrasi Kerja Praktik Mahasiswa Fakultas Teknik Universitas Pahlawan Tuanku Tambusai Berbasi Websiste

The need for a website is not only in government or office. Higher education as the birthplace of intelligent and responsive generations must also be better prepared to deal with technological advances. This also applies to Hero University located in Kampar Regency. The administrative process in the actual work of engineering school students is still done manually, the verification and signing process is often forced by teachers and leaders outside the school, which prolongs the process. administrative. The method used in this study is the cascade method. The system is also built using the Laravel framework and object-oriented programming with the addition of the bootstrap CSS framework. The result of this study is that the actual job administration website, Faculty of Engineering, Pahlawan Tuanku Tambusai University, helps engineering students to perform practical job administration more easily and in no time

Method Support of Information Requirements Analysis for Analytical Information Systems: State of the Art, Practice Requirements, and Research Agenda

Due to specific characteristics of analytical information systems, their development varies significantly from transaction-oriented systems. Specific method support is particularly needed for requirements engineering and its information-related component, information requirements analysis. The paper at hand first evaluates the state of the art and identifies necessary method support extensions. On this basis, method support requirements for information requirements engineering are identified. The survey is structured along the five core activities of traditional requirements engineering. It reveals a need for further research especially on information requirements elicitation, validation, and management. It further contributes to a discussion of aspects that should be considered by any method support. Due to comparatively long life cycles of analytical information systems, the introduction of a process perspective is discussed in order to ensure the continuous elicitation, documentation, and management of information requirement