Systems identification and application systems development for monitoring the physiological and health status of crewmen in space

The use of automated, analytical techniques to aid medical support teams is suggested. Recommendations are presented for characterizing crew health in terms of: (1) wholebody function including physiological, psychological and performance factors; (2) a combination of critical performance indexes which consist of multiple factors of measurable parameters; (3) specific responses to low noise level stress tests; and (4) probabilities of future performance based on present and periodic examination of past performance. A concept is proposed for a computerized real time biomedical monitoring and health care system that would have the capability to integrate monitored data, detect off-nominal conditions based on current knowledge of spaceflight responses, predict future health status, and assist in diagnosis and alternative therapies. Mathematical models could play an important role in this approach, especially when operating in a real time mode. Recommendations are presented to update the present health monitoring systems in terms of recent advances in computer technology and biomedical monitoring systems

Aerospace medicine and biology: A continuing bibliography with indexes, supplement 197, September 1979

This bibliography lists 193 reports, articles, and other documents introduced into the NASA scientific and technical information system in August 1979

An object-oriented approach to application generation

The TUBA system consists of a set of integrated tools for the generation of business-oriented applications. Tools and applications have a modular structure, represented by class objects. The article describes the architecture of the environments for file processing, screen handling and report writing

E-Commerce Audit Judgment Expertise: Does Expertise in System Change Management and Information Technology Auditing Mediate E-Commerce Audit Judgment Expertise?

A global survey of 203 E-commerce auditors was conducted to investigate the perceptions about the potential determinants of expertise in E-commerce audits. We hypothesize and find evidence indicating that information technology and communication expertise are positively related to expertise in E-commerce audit judgment. We also find that system change management expertise and information technology audit expertise mediate this relationship.E-commerce Audit Judgment, IT Audit, Structural Equations Modeling

Schedule Estimation for Web Application Development

The purpose of the project is to come up with a robust methodology for estimating hours for web application systems development. For the scope of the project, a web application system is an application which is accessed via a web browser and performs numerous tasks via web pages. The project will take a generalized approach for all web application systems. Estimating the level of effort to complete any application system is a hard task. Web application systems are no different from any other application system when it comes to estimating development time. The main reasons for difficulty in estimating hours are the dynamic nature of the business and the customer’s lack of requirements for the web application. This particular project will generate a robust methodology to provide an accurate estimate for web application system development. The project will dissect a web application and take into account all the other pieces that are integrated into a web application. Then a survey is taken by numerous experienced software engineers who will estimate implementation hours for each task. The average is generated for each task. This average will be used as a bench mark to calculate estimates for a given project. The final part of this project is the construction of a web application which determines estimates for other web applications. A user will have to know the requirements thoroughly and enter them into the estimation web application. Within a matter of seconds the estimating web application will calculate the estimate for the particular future web application

Decision support for information systems management : applying analytic hierarchy process

Decision-making in the field of information systems has become more complex due to a larger number of alternatives, multiple and sometimes conflicting goals, and an increasingly turbulent environment. In this paper we explore the appropriateness of Analytic Hierarchy Process to support I/S decision making. AHP can be applied if the decision problem includes multiple objectives, conflicting criteria, incommensurable units, and aims at selecting an alternative from a known set of alternatives. An AHP analysis is described by using the project selection decision as an example. The strengths and weaknesses of AHP are investigated based on a set of eight criteria for evaluating I/S decision support methods. This evaluation shows that AHP scores well on most criteria. Given this promising performance, other possible applications of AHP within the I/S function are listed.

Automated system for integration and display of physiological response data

The system analysis approach was applied in a study of physiological systems in both 1-g and weightlessness, for short and long term experiments. A whole body, algorithm developed as the first step in the construction of a total body simulation system is described and an advanced biomedical computer system concept including interactive display/command consoles is discussed. The documentation of the design specifications, design and development studies, and user's instructions (which include program listings) for these delivered end-terms; the reports on the results of many research and feasibility studies; and many subcontract reports are cited in the bibliography

Factors Affecting Application Development Productivity:An Empirical Investigation

A recent survey [4] shows that 35% to 50% of software projects had an overrun in terms of the development effort and schedule. Such late deliveries of software tend to cause project backlogs on the order of 374% ofcurrent capacity [2]. Many factors have been suggested as root causes for going over the budget, such as inaccurate estimates, inept scheduling, and failure to recognize risks and plan accordingly. Considerable effort has been devoted to the study of software project management techniques to cure these problems [1]. On the other hand, some suggest that we should seek ways to make programmers more productive, just as Henry Ford made auto assembly workers more productive. For instance, Boehm [3] believes that there are opportunities to increase software productivity, and predicts that by 1995 a 20% improvement in software productivity will be worth US$45 billion in the US and US$90 billion world-wide. As a result, new methodologies and tools for software development have been suggested and developed in order to increase productivity and subsequently alleviate project backlogs. Representative examples include structured analysis and design, computer-aided software engineering (CASE), and fourth generation languages (4GLs). However, the impacts of these new methodologies and tools on productivity have not been clearly realized, and their use is often controversial [8]. Previous research [6,7] suggests that improving programming productivity requires much more than the isolated implementation of new technologies and policies. Unfortunately, the integration of the new technologies with strategies for managing the software development process, such as project and configuration management, characterization of project teams, and process control, has been largely overlooked [5] as a critical contributor to software productivity improvement. Thus, an integrated analysis, which covers both technological and managerial aspects of software development, is needed. Since there has been almost no research of this problem, we began with an exploratory study [9] that examined current practices in application systems development, focusing on utilization of productivity tools in information systems (I/S) organizations. The aim ofthe study was to develop an appreciation of the factors that might affect application development productivity. We found that an integration of technical and managerial interventions accounted for increased productivity. In the present study, we follow up on the exploratory study. Using hypotheses developed in [9], we are collecting data from a large sample of companies through a mail survey. Before proceeding to a detailed description of the research in progress, we present some concepts basic to understanding our research approach