Development Of Line Width And Type Control Of 2d Cad Software Based On Iso Technical Drawing Standard

Engineering drawing is the media of communication in manufacturing process. In order to communicate in the same graphic language in engineering, the technical drawing standard has been specified by the International Organization for Standardization (ISO). Some commercial CAD softwares such as AutoCAD, AutoSketch and Solid Edge provided high-end ability to work whether in 3D or 2D space. Their width, length and proportion of printed lines conform to the ISO Technical Drawing Standard. But the procedures and interface to create line width and line type for simple drawing are sometime tedious and complex. The aim of this research work is to develop a 2D CAD software with emphasize on line width and line type control based on the ISO technical drawing standard for technical drawing.The ISO 128 part 20, 21 , and 24 are fundamental standard applied to the proposed software. The design of User Interface (VI) has been done in Windows XP operating system environment and Pascal-based Delphi 5 Standard as the visual programming tools. The format of drawing file was designed as the independent format, textual file, on the basis of Computer Graphics Metafile format (CGM) and Data Exchange File format (DXF). Seven drawing were printed in various line widths from 0.25 mm to 2.0 mm. Every drawing was proved the line width, length of line elements and continuous line are the same dimension as a manuscript drawing and specification in the ISO standard. The human-computer interfaces of the developed software were simplified for line width and line type control. The time taken to produce a technical drawing is less as compare to commercial softwares such as AutoCAD, AutoSketch and Solid Edge. Keystroke-level model was applied for this purpose

Space station automation of common module power management and distribution

The purpose is to automate a breadboard level Power Management and Distribution (PMAD) system which possesses many functional characteristics of a specified Space Station power system. The automation system was built upon 20 kHz ac source with redundancy of the power buses. There are two power distribution control units which furnish power to six load centers which in turn enable load circuits based upon a system generated schedule. The progress in building this specified autonomous system is described. Automation of Space Station Module PMAD was accomplished by segmenting the complete task in the following four independent tasks: (1) develop a detailed approach for PMAD automation; (2) define the software and hardware elements of automation; (3) develop the automation system for the PMAD breadboard; and (4) select an appropriate host processing environment

Restructuring the rotor analysis program C-60

The continuing evolution of the rotary wing industry demands increasing analytical capabilities. To keep up with this demand, software must be structured to accommodate change. The approach discussed for meeting this demand is to restructure an existing analysis. The motivational factors, basic principles, application techniques, and practical lessons from experience with this restructuring effort are reviewed

PicoLibre : a free collaborative platform to improve students'skills in software engineering

International audienceThe work described in this paper consists in the development of a pedagogical collaborative platform to improve the know-how of our students in software engineering and collaborative work. Its use in a free software context leads to greater commitment of the students and better reusability of their work

A methodology for producing reliable software, volume 1

An investigation into the areas having an impact on producing reliable software including automated verification tools, software modeling, testing techniques, structured programming, and management techniques is presented. This final report contains the results of this investigation, analysis of each technique, and the definition of a methodology for producing reliable software

Comparative Study of Needs-Assessment Methodologies as They Apply to the Development of a University Computer Science Curriculum in a Central African Country

A Central African society consisting of two local ethnic groups, as well as Europeans, Asians [Pakistanis and Indians), and North Americans, provided a milieux for the evaluations of five needs-assessment methodologies as to their appropriateness in a multi-ethnic environment. Five methodologies, a questionnaire, a job analysis log, audio and video interviews, and an informal indigenous contact, were used in a needs assessment for the computer science department of the Adventist University of Central Africa, a private church-operated university, located at Mudende, Gisenyi, Rwanda, Central Africa. The five methodologies were evaluated in two different manners: 1. An evaluation of the appropriateness of the methodology based on 12 modified standards selected from those suggested by The Joint Committee on Standards for Educational Evaluation (1994), designed to assess the complete evaluation process (In this dissertation, the 12 selected standards were chosen and adapted to examine the impact of culture on the methodologies and to determine the appropriateness of the use of the methodologies in a needs assessment in the Fourth World.) 2. A comparison of the number of recommendations provided by each methodology. The numbering included the total count of recommendations provided by each methodology, the number of nonunique recommendations, as well as the number of unique recommendations. The recommendations were classified in new, consider. and improve categories. The recommendations were also examined as to how they were implemented. The results of the study indicate th at all five methodologies had their own set of unique strengths and weaknesses when used in a Fourth World setting. In fact, no one methodology would have been appropriate if used by itself. In this study, reducing the number of methodologies would have resulted in a loss of vital information needed for decision making. The greatest amount of information came from methods th at allowed the researcher to develop a researcher-respondent relationship prior to collection of information. The single most productive methodology was the audio interview, with its greater use of affective communication

Effective applications of microcomputer-based management information and decision support systems for small and medium sized enterprises

This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.Firstly, this thesis reviews the literature on the application of microcomputer-based Management Information Systems (MISs) and Decision Support Systems (DSS) to Small and Medium sized Enterprises (SMEs). It is found that the hardware platform today is already sufficient for SMEs. However, information regarding successful implementation of MISs for SMEs is scarce and largely fragmented. DSS requires more focused and dedicated use of information to support managerial decision making. Unfortunately, the development of DSSs for SMEs is even more backward. Yet, there is an emerging need for SMEs today because business operations have become more sophisticated under intensified competition. With this scenario in mind, the author undertook intensive questionnaire and case surveys to find out the current development and trends for the effective applications of MISs and DSSs. In 1987, the author was awarded the Oshikawa Fellowship by Asian Productivity Organisation in Tokyo and started the present research. 446 completed questionnaire survey sheets from U.K. and Hang Kong have been received and analysed. 67 SMEs and related organisations in 6 developing/developed countries were also visited. This forms the knowledge for the development of expert systems (ES) for effective applications of MIS. The approach for DSS is based on a carefully selected business game which has most of the common business decision parameters. Intensive experiment with over 100 subjects was conducted in running the game, with an average time contribution of about 20 hours/person. The findings are again consolidated and structured into an ES. Longitudinal research was conducted in 5 representative SMEs. With the use of action learning and participation of the researcher, more in-depth firsthand information were obtained and analysed. These form part of the input to the ES as well. Both ES have been validated and further improved. The experimenters find these as keys to develop MIS/DSS for SMEs. A marketing plan is suggested to launch these two products so that they can become more easily available. Finally, recommendations are made on the effective use of the ES and for further development