6 research outputs found
Feasibility study of an Integrated Program for Aerospace-vehicle Design (IPAD) system. Volume 6: Implementation schedule, development costs, operational costs, benefit assessment, impact on company organization, spin-off assessment, phase 1, tasks 3 to 8
A baseline implementation plan, including alternative implementation approaches for critical software elements and variants to the plan, was developed. The basic philosophy was aimed at: (1) a progressive release of capability for three major computing systems, (2) an end product that was a working tool, (3) giving participation to industry, government agencies, and universities, and (4) emphasizing the development of critical elements of the IPAD framework software. The results of these tasks indicate an IPAD first release capability 45 months after go-ahead, a five year total implementation schedule, and a total developmental cost of 2027 man-months and 1074 computer hours. Several areas of operational cost increases were identified mainly due to the impact of additional equipment needed and additional computer overhead. The benefits of an IPAD system were related mainly to potential savings in engineering man-hours, reduction of design-cycle calendar time, and indirect upgrading of product quality and performance
Restructuring mechanism for a codasyl-type data base
SIGLELD:D48229/84 / BLDSC - British Library Document Supply CentreGBUnited Kingdo
An Integrated Engineering-Computation Framework for Collaborative Engineering: An Application in Project Management
Today\u27s engineering applications suffer from a severe integration problem. Engineering, the entire process, consists of a myriad of individual, often complex, tasks. Most computer tools support particular tasks in engineering, but the output of one tool is different from the others\u27. Thus, the users must re-enter the relevant information in the format required by another tool. Moreover, usually in the development process of a new product/process, several teams of engineers with different backgrounds/responsibilities are involved, for example mechanical engineers, cost estimators, manufacturing engineers, quality engineers, and project manager. Engineers need a tool(s) to share technical and managerial information and to be able to instantly access the latest changes made by one member, or more, in the teams to determine right away the impacts of these changes in all disciplines (cost, time, resources, etc.). In other words, engineers need to participate in a truly collaborative environment for the achievement of a common objective, which is the completion of the product/process design project in a timely, cost effective, and optimal manner.
In this thesis, a new framework that integrates the capabilities of four commercial software, Microsoft Excelâ„¢ (spreadsheet), Microsoft Projectâ„¢ (project management), What\u27s Best! (an optimization add-in), and Visual Basicâ„¢ (programming language), with a state-of-the-art object-oriented database (knowledge medium), InnerCircle2000â„¢ is being presented and applied to handle the Cost-Time Trade-Off problem in project networks. The result was a vastly superior solution over the conventional solution from the viewpoint of data handling, completeness of solution space, and in the context of a collaborative engineering-computation environment
Data bases and data base systems related to NASA's aerospace program. A bibliography with indexes
This bibliography lists 1778 reports, articles, and other documents introduced into the NASA scientific and technical information system, 1975 through 1980
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The impact of database systems on organisations : A survey with special reference to the evolution of the database administration function
Implementation of the database concept has organisational implications, the most widely recognised being the emergence of the specialist function of data or database administration (DBA) 'usually in data processing departments. This research study is an investigation of U.K. database projects, undertaken to obtain a view of the managerial issues and organisational consequences which arise in practice. The findings are based on the completion of a simple postal Questionnaire by 212 organisations with database projects and in-depth interviews in 21 of these organisations with the staff member bearing overall responsibility for the development. The surveys were conducted in 1976-1981. The study employs qualitative methods to explore the inter-dependencies between organisations' objectives for embarking on a database project, features of the project environment, approaches to staffing including characteristics of the DBA function and the nature of the problems faced. The major finding is that organisations experience more serious 'political ~ problems than technical ones. The predominant type of political problem is not resistance to data sharing, but rather related to the emergence of a DBA function-dissatisfaction over organisational placemen.t and the working relationship with data processing functions such as systems development. Moreover these organisational problems occur from the earliest phase of database projects - the feasibility stage. The study concludes that with management backing, analysis and design skills and control over database usage, the DBA function has been able to acquire technical and political weight in organisations in a relatively short period of time. The current data processing environment however contains unique opportunities for the function - in the areas of systems planning, systems development and the administration of shared data - which suggests that the notion of the DBA as the organisation's overall data resource manager is still a viable one
An Introduction to Database Systems
This textbook introduces the basic concepts of database systems. These concepts are presented through numerous examples in modeling and design. The material in this book is geared to an introductory course in database systems offered at the junior or senior level of Computer Science. It could also be used in a first year graduate course in database systems, focusing on a selection of the advanced topics in the latter chapters