Home eBooks Download › designing for change minimizing the impact of changing requirements in the later stages of a spaceflight software project

Designing For Change Minimizing The Impact Of Changing Requirements In The Later Stages Of A Spaceflight Software Project

DOWNLOAD

Download Designing For Change Minimizing The Impact Of Changing Requirements In The Later Stages Of A Spaceflight Software Project PDF/ePub or read online books in Mobi eBooks. Click Download or Read Online button to get Designing For Change Minimizing The Impact Of Changing Requirements In The Later Stages Of A Spaceflight Software Project book now. This website allows unlimited access to, at the time of writing, more than 1.5 million titles, including hundreds of thousands of titles in various foreign languages. If the content not found or just blank you must refresh this page

Designing For Change Minimizing The Impact Of Changing Requirements In The Later Stages Of A Spaceflight Software Project

DOWNLOAD
Author :
language : en
Publisher:
Release Date : 1998

Designing For Change Minimizing The Impact Of Changing Requirements In The Later Stages Of A Spaceflight Software Project written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with categories.

Control Of Complex Systems

DOWNLOAD
Author : Karl J. Aström
language : en
Publisher: Springer Science & Business Media
Release Date : 2011-06-28

Control Of Complex Systems written by Karl J. Aström and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-06-28 with Technology & Engineering categories.

The world of artificial systems is reaching complexity levels that es cape human understanding. Surface traffic, electricity distribution, air planes, mobile communications, etc. , are examples that demonstrate that we are running into problems that are beyond classical scientific or engi neering knowledge. There is an ongoing world-wide effort to understand these systems and develop models that can capture its behavior. The reason for this work is clear, if our lack of understanding deepens, we will lose our capability to control these systems and make they behave as we want. Researchers from many different fields are trying to understand and develop theories for complex man-made systems. This book presents re search from the perspective of control and systems theory. The book has grown out of activities in the research program Control of Complex Systems (COSY). The program has been sponsored by the Eu ropean Science Foundation (ESF) which for 25 years has been one of the leading players in stimulating scientific research. ESF is a European asso ciation of more than 60 leading national science agencies spanning more than 20 countries. ESF covers has standing committees in Medical Sci ences, Life and Environmental Sciences, Physical and Engineering Sci ences, Humanities and Social Sciences. The COSY program was ESF's first activity in the Engineering Sciences. The program run for a period of five years starting January 1995.

Designing For Change

DOWNLOAD
Author : National Aeronautics and Space Administration (NASA)
language : en
Publisher: Createspace Independent Publishing Platform
Release Date : 2018-07-17

Designing For Change written by National Aeronautics and Space Administration (NASA) and has been published by Createspace Independent Publishing Platform this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-07-17 with categories.

In the traditional 'waterfall' model of the software project life cycle, the Requirements Phase ends and flows into the Design Phase, which ends and flows into the Development Phase. Unfortunately, the process rarely, if ever, works so smoothly in practice. Instead, software developers often receive new requirements, or modifications to the original requirements, well after the earlier project phases have been completed. In particular, projects with shorter than ideal schedules are highly susceptible to frequent requirements changes, as the software requirements analysis phase is often forced to begin before the overall system requirements and top-level design are complete. This results in later modifications to the software requirements, even though the software design and development phases may be complete. Requirements changes received in the later stages of a software project inevitably lead to modification of existing developed software. Presented here is a series of software design techniques that can greatly reduce the impact of last-minute requirements changes. These techniques were successfully used to add built-in flexibility to two complex software systems in which the requirements were expected to (and did) change frequently. These large, real-time systems were developed at NASA Langley Research Center (LaRC) to test and control the Lidar In-Space Technology Experiment (LITE) instrument which flew aboard the space shuttle Discovery as the primary payload on the STS-64 mission. Allen, B. Danette Langley Research Center SOFTWARE ENGINEERING; COMPUTER PROGRAMMING; REAL TIME OPERATION; SCHEDULES; DISCOVERY (ORBITER); SPACE TRANSPORTATION SYSTEM; SPACE SHUTTLES; SPACE FLIGHT; OPTICAL RADAR; COMPLEX SYSTEMS...