Analysis Of Functional Requirements Research Articles

The Architecture of Reliability Information System for CNC Machine Tool in Concurrent Engineering

Based on the functional requirement analysis of the compute-aided reliability information system, some concepts are proposed, such as the distributed progressive reliability analysis and the functional decomposition and reconstitution for CNC machine tool. At the same time, the architecture of the CARNC-CE (Computer Aided Reliability Numerical Control for Current Engineering) including physical layer, foundational layer, executive layer, applied layer and illustration layer, is introduced, which provides the general guidance and the frame to realize CNC machine tool reliability analysis system in concurrent engineering.

전자기록관리시스템(ERMS) 설계표준의 기능요건 분석-ISO 15489를 기준으로-

전자기록관리시스템을 개발하기 위해서는 전통적으로 그 효용을 검증받아온 기록관리원칙과 디지털정보가 공유하는 속성을 모두 감안하여야 한다. 디지털 환경에 맞추어 전통적인 기록관리원칙을 재확인한 기록관리 국제표준 ISO 15489는 전자기록관리시스템을 구축하는 데 가장 유용한 지침이라고 할 수 있다. 이 연구에서는 ISO 15489의 기능영역별 원칙을 추출하고, 이를 대표적인 전자기록관리시스템 설계표준(미 국방성표준, 영국 국립기록보존소 표준, 유럽연합의 요건모형)과 비교하여 분석함으로써 공통적인 시스템요건을 규명하였다. 그리고 이 핵심요건을 우리나라의 자료관시스템규격의 해당항목과 비교분석하였다. 현재 각급 행정기관 내에 설치 중인 자료관의 업무전산화 시스템으로 개발된 이 표준을 본격적인 전자기록관리시스템으로 발전시킬 수 있는 방안을 제안하였다.

Data-mining-based methodology for the design of product families

Companies design and manufacture widely diversified products to satisfy the needs of their customers and markets. Two issues important to achieving this aim are discussed. The first concerns adequate diversity for a particular market. The second concerns the management and manufacture of products within an acceptable lead time and an acceptable cost. The two issues are examined with a methodology for the design of products families. This methodology is based on a data-mining approach and it focuses on the analysis of functional requirements.

Delivery and interactive processing of visual data for a cooperative telemedicine environment.

Cooperative telemedicine environments are required for many situations such as consultations between residents and senior doctors, case correlations, and for teaching and research purposes. The mode of collaboration may vary with different situations, in terms of the synchronisation of tasks, the sharing of data and the extent of collaboration among participants. It is essential for participants to be able to remotely view and manipulate visual data (images, two-dimensional and three-dimensional graphics, animation, and video) as well as interactively run application programs that involve visual data in real-time. However, this is not possible with current network bandwidth limitations when large amount of visual data are involved. In this article, we first provide an analysis of functional requirements by participants in cooperative diagnosis in different types of situations, before discussing technical requirements, which form the basis for our system architecture design. A new approach is also presented for efficient handling of programs, which involve visual data in real time. This is achieved via the construction and transmission of small messages that encapsulate the operations in a pipelined or hierarchical fashion.

Design and implementation of a collaborative engineering information system for allied concurrent engineering

Allied concurrent engineering is defined by unifying the concepts of virtual enterprise and concurrent engineering in the engineering processes. It aims to integrate the engineering activities and resources from different enterprises through enterprise alliances to respond to customer expectations quickly. The integration, management and sharing of engineering information is the basis for allied concurrent engineering. This paper presents a systematic approach, from domain investigation and functional requirement analysis, through system design and modelling to implementation of an engineering information system that makes use of various modelling techniques. The system aims at quickly providing the right information to the right place at the right time in the right formats throughout the inter-enterprise concurrent engineering processes to facilitate communication, coordination, control and integration of multi-enterprise concurrent product and process development. The result of this research will enable the practice of allied concurrent engineering and consequently help increase product development capability and quality, reduce development cycle time and cost, and hence increase product marketability.

A framework of a concurrent process planning system for mold manufacturing

This paper presents a research on the development of a computer-based framework that supports concurrent mold manufacturing process planning. The practical goal of this research is three-fold: (1) to develop a systematic and concurrent mold manufacturing process planning model, (2) to develop a computer-based mold manufacturing process planning system based on the concurrent model, and (3) to develop knowledge bases to assist in concurrent type of mold manufacturing process planning that accommodates mold development concerns, as well as the requirements of the products. The approach of this work includes steps of (1) modeling and reengineering concurrent mold manufacturing process planning, (2) analysis of system functional requirements, (3) system framework design, and (4) system modeling and implementation. The results of this research will facilitate the rationalization and automation of the mold development process planning, thus improving the efficiency and quality, and also reducing the cost of molding product and process development.

Development of a computer-aided concurrent net shape product and process development environment

This paper presents a systematic approach to developing a collaborative environment for computer-aided concurrent net shape product and process development. This approach includes the steps of (1) conventional development process analysis, (2) development process re-engineering, (3) computer-based system functional requirements analysis, (4) system framework design, and (5) system modeling, integration and implementation. This environment can support concurrent net shape product and process development by providing and integrating functions of product data management, process management and development advisory tools. The results of this research will facilitate the rationalization and automation of net shape product and process development and thus improve the efficiency and quality, and reduce the cost of net shape product development. IDEF structural analysis methodology was employed to capture the characteristics of net shape product and process development process. The concept of concurrent engineering was used to re-engineer the development process. The technology of system engineering was used to design the computer-aided system framework. Object-oriented analysis, modeling and design methodology, knowledge engineering and data engineering techniques were employed for system modeling and implementation.

A collaborative data management framework for concurrent product and process development

This paper presents a systematic approach, from domain investigation and functional requirement analysis, through modelling to implementation, to development of a collaborative data management framework that makes use of object-oriented techniques. The framework can support information sharing and team data management in concurrent product and process development by providing functions for project configuration, personal product and process item management, and team library management. Establishing this framework involves: I identification of functional requirements for computer-aided engineering data management through the investigation of a concurrent product delivery process with emphasis on product and process development; ii use of system engineering and objectoriented modelling techniques for development of the proposed framework. A product structure and a project configuration are devised for the development of an object model, and a functional model. They are used together as the basic construct of the collaborative team data management framework.

An approach for enabling managers to be ergonomically effective change agents

The technique described in this article enables a manager to be an effective change agent by analyzing a process and determining the ergonomic implications of each of its components. A functional requirements analysis for analyzing processes is described. A review technique is then provided for evaluating the results to determine which components have the least dependency on human capabilities, the most detrimental impact on humans, or both. A decision rule based on summary statistics of the evaluations is introduced to qualify each of the components as to whether it is conducive to being modified by a management intervention. These techniques are illustrated with simplified examples. Relevance to industry The analytic approaches described enable practicing managers and ergonomists to make effective use of limited resources in identifying key functions and actions of processes that are most conductive for modification or change.

Overview on Energetic Polymers

AbstractEnergetic materials for missiles, gun munitions or pyrotechnic devices often are mixtures in a biphasic form, with a filler and a binder. To satisfy the user needs, an analysis of functional requirements together with constraints (safety, vulnerability, ageing, environment, disposal, price...) is useful to choose a convenient binder. From this point of view numerous synthetic energetic polymers proposed or developed as binders are reviewed with regard to their syntheses, processing, properties and possible uses. These polymers contain explosophore groups: C-NO2aliphatic or aromatic, ONO2, NNO2, NF2and N3.Some research projects are suggested. Among them in the list of published polymers, following a NIMIC (NATO) suggestion, note the reason of a development interruption. Some dinitropolystyrene – polyvinyl nitrate mixtures or copolymers could exhibit interesting properties. For unknown reasons, some mixtures of crystalline filler- with polymeric binder, generally in a biphasic form, may also be monophasic for a same composition. What properties are modified between the both forms (e.g. combustion mechanisms, erosion, ideal character of the detonation) ? It is also interesting to pursue into a newly open route to thermo-plastic elastomers.

A Requirements Analysis of Future Environments for Computer-Aided Control Engineering

A functional requirements analysis of the services to be provided by a framework reference model for computer-aided engineering is presented. Some indications of the technologies available for the implementation of a framework for computer-aided control engineering are given and the issues to be addressed are discussed. It is concluded that a wider discussion of both the framework reference model itself and the functional requirements, particularly from the user's perspective is needed

The AVI initiative: functional requirements analysis and proposed framework for standardization

The aim of the document is to analyze the requirements which will allow telecommunication operators to provide services for the interchange of multimedia scriptware, and to propose accordingly a framework and orientations to the current standardizati

Pivot design in bileaflet valves.

The design criteria leading to the development of a new bileaflet valve (Sorin Bicarbon) were derived from the analysis of functional requirements, the performance of existing prostheses, and the availability of an advanced carbon coating technology (Carbofilm). The hinge is the critical element affecting fluid dynamics, durability, and thrombus formation in bileaflet valves. A comparative study of three existing models led to a new hinge design that was based on coupling two spheric surfaces with different radii of curvature (leaflet pivot and hinge recess) and obtained by electroerosion into a Carbofilm-coated metallic housing. In this valve, the point of contact moves continuously by rolling, not sliding. This minimizes friction and wear and allows uninterrupted washing of the blood exposed surfaces even during diastole (a finding established in patients using transesophageal echocardiography). Tricuspid implantation without anticoagulation in 33 sheep did not lead to thrombotic events (follow-up, 40-400 days). In the first 36 clinical implants observed for 15 months (mitral position, size 29; two unrelated deaths), the mean diastolic gradient by echo Doppler was 4 +/- 1.25 mmHg; the functional area was 3.2 +/- 0.6 cm2. No leaflet fracture and no thrombotic or embolic complications were observed clinically using a standard anticoagulant regimen.

Systems‐Engineering Methodology for Engineering Planning Applications

This paper compiles a complete, concise, systematic systems‐engineering methodology that is practical for typical engineering planning applications. Systems engineering is a general methodology using a top‐down apprach to defining problems and evaluating solutions. It consists of an iterative sequence of functional analysis, requirements analysis, and architecture definition. It is a modification of the classical engineering approach that employs system descriptions of products or programs of interest. The functional description is introduced to complement the traditional physical or task descriptions, and is used to define the problem prior to the engineering of the solution. Another modification of the classical engineering approach is to require that the system approach be used in problem solving. This is necessary to ensure that all feasible alternatives are examined equally and that point solutions are avoided. Although systems engineering applications traditionally have focused on design of large ph...

Using software specification methods for measurement instrument systems: Part 1: Structured methods

Investigation has been undertaken into the use of software specification methods for instrument systems specification. In the first part of this paper, some of the well-known structured software specification methods are briefly evaluated against a set of criteria we established, in the context of measuring instrument systems. We then conduct a case study in the widely used CORE method. It has been established that CORE can provide systematic and effective support for functional requirement analysis of complex instruments and instrument systems. Its decomposition-based analysis helps to create complete and consistent functional requirement specification.

Book reivew: Advanced Database Techniques by Daniel Martin (MIT Press 1986)

This book was originally published in French in 1985. The author attempts to treat in details some topics which are often ignored in most standard database texts [1, 2]. In his book, Daniel Martin attempts to point out the weakness of the relational data model such as the uselessness of functional dependency and normal forms in practical DBMSs, and the lack of power in modeling the semantics of application problems [pp. 44, 52]. Much attention was paid on practical aspects such as physical design, the construction and use data dictionary, and functional specification and requirement analysis. The author presents a new data model, called Dynamic Model, in which a fourth schema, the dynamic schema, is introduced to model the processing requirements of the transactions. The book is divided into seven chapters as follows:

The Effects of an Automated Maintenance Management System on Organizational Communication

This paper describes Electric Power Research Institute (EPRI) sponsored case studies of two nuclear power plants that automated their maintenance management system in an effort to improve maintenance processing. These case studies evaluated the impact of an automated maintenance management system (AMMS) on the organizational interfaces and information requirements of a variety of system users. The goal of the project was to provide guidance to the electric power industry in maintenance management system design. A product of the investigation was a set of guidelines for use by utilities in conducting a front-end functional requirements analysis to help define major information requirements and organizational and data file interfaces.

Interpretation and Application of the AMC Format

The USMARC Archival and Manuscripts Control (AMC) form at is a standard format for the administrative and descriptive control of archives and manuscript materials, primarily in automated systems. This article describes the history of the AMC format's development, as well as the characteristics of its various parts. Information on AMC format implementation and use is provided, covering such topics as functional requirements analysis, information gathering, and system selection/design. The article concludes with recommendations for future action related to the format's ongoing development and use.

A System Approach to the Design of an Integrated Microprocessor Based Substation Control and Protection System

This paper is concerned with a system design of an Integrated Sub-station Control and Protection System. An analysis of functional requirements is performed first. The multilevel, hierarchical system representation concept is used as an analysis tool. As a result of the analysis, system architecture and algorithm requirements are specified next. Then, an allocation of system functions is performed. System interfaces and data flow are also discussed. Finally, a microprocessor-based configuration is proposed.

Computer-assisted logical database design

Database design can be a long and tedious process. Designing large databases, say of 500 elements or more, usually takes months, even years. Until now, database design has been more an art than a science, with no standardly recognized set of rules or algorithms. Experience and intuitive feel have been the designer's criteria. In addition to the time and tedium involved, the quality of the resulting design is frequently a problem. In many cases fo poorly performing systems, the database design is found to be the culprit. Once the meanings of the data elements are understood, database design is relatively straightforward but tedious. But good designs are not always easy to obtain. The major problems fall into the following categories: • • insufficient analysis of functional data requirements • • lengthy tedium beyond human capacity • • difficulty of predicting performance implications • • management impose time constraints Automated logical database design offers the potential of quality design accomplished in significantly shorter periods of time. Besides assisting in the structuring process, the procedures offer a wealth of editing and diagnostic information. While automated techniques can derive a logical datastructure, the designer should always consider these techniques as a tool that produces a suggested (cannonical) design requiring human review and probably human refinement. These techniques, then, should be applied to an interative design process to assist the designer in converging on a final logical design to be implemented. The available diagnostics can greatly assist in this review and refinement. The emphasis of this paper is on the design of DL/I hierachical structures, but the design of relational structures is also treated. Following some introductory concepts, the automated logical design procedures for DL/I structures are presented. The procedures are described, some of their more subtle features are explored, and the types of reports obtainable are suggested. The extension of these concepts to relational structures is then presented. Finally, desirable interfaces between the automated design procedures and a dictionary system are suggested.