Large scale Complex Systems and Systems of Systems Engineering: Case Studies
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If the address matches an existing account you will receive an email with instructions to retrieve your username. Skip to Main Content. First published: 3 March About this book With the growing maturity of information and communication technologies, systems have been interconnected within growing networks, yielding new services through a combination of the system functionalities.
This leads to an increasing complexity that has to be managed in order to take advantage of these system integrations. This book provides key answers as to how such systems of systems can be engineered and how their complexity can be mastered. After reviewing some definitions on systems of systems engineering, the book focuses on concrete applications and offers a survey of the activities and techniques that allow engineering of complex systems and systems of systems.
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Defining the infrastructure 8. Integration, verification and validation organization 8. Choosing techniques 8. Things to remember: integration, verification and validation 8. Bibliography Chapter 9. Before we can manage a solution, we need to find one!
Modeling isn t drawing! Implementing systems engineering 9. Acknowledgements 9.
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Bibliography Conclusion List of Authors Index Neem contact met mij op over Events Sprekers Incompany. Welkom terug. Uw account. Agenda Seminars Masterclasses e-learning Sprekers Incompany. Actueel Opinie Interviews Recensies Videos.
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Beoordeel zelf slecht matig voldoende goed zeer goed. Large—scale Complex System and Systems of Systems. Gebonden, blz. ISTE Ltd. Auteurs Over dit boek Artikelen en interviews Recensies.
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Samenvatting Rubriek: Wetenschap en techniek. Lezersrecensies Beoordeel zelf slecht matig voldoende goed zeer goed. Algemene beoordeling slecht matig voldoende goed zeer goed. Uw recensie. Bedankt voor uw beoordeling Uw reactie is inmiddels op de website geplaatst en zal door onze redactie beoordeeld worden.
Bekijk uw recensie. Lezersrecensies 1 Vond u deze recensie nuttig? NaN Vandaag. Contactformulier Vult u alstublieft onderstaande gegevens zo volledig mogelijk in, dan kunnen wij u optimaal van dienst zijn. Wij nemen binnen een werkdag contact met u op. U kunt ons ook bellen op Aanhef Dhr. Because of the scale of the numbers involved, missteps on complex systems projects can impact the entire company, people's safety, and the environment. A structured, integrated approach utilizing systems engineering concepts can be a very effective way to mitigate the risks of this type of project.
Complex systems have characteristics that that set them apart from the rest of the world and provide unique management challenges. Many characterize these systems as engineering marvels, whether they are enormous in size such as an aircraft carrier or tiny in size such as a computer microchip.
Fundamentally, a complex system is a sophisticated structure, device, or other entity that consists of many components that interact with one another; there are often many logical dependencies between the components, and there are many variables that affect their intricate interactions.
Complex systems typically cost millions of dollars—if not billions—to develop or construct, and there are typically many parties involved in the process. Regardless of the physical size of the finished product, each of these items involves an elaborate, time-consuming, and expensive development or construction process. Although some people may not initially think of buildings or bridges as being complex systems, such projects do consist of multiple sophisticated systems such as electrical systems, plumbing and drainage systems, heating and cooling systems, communication systems, and so on, all housed in or supported by a complex structural system.
As a result, we can apply development methods to them similar to those used for other complex systems. In the United States, the money spent annually on the design, development, construction, implementation, maintenance, and decommissioning of complex systems is immense. According to data available from the U. Industries considered here as part of the manufacture of complex systems includes the following:. Although complex systems projects have many of the same types of issues as smaller or simpler projects, their issues can be greatly magnified and can cause much higher risks.
Large-scale Complex System and Systems of Systems
Because of the large numbers involved, missteps on complex systems projects can have enormous impacts not only to the project, but also to the entire organization. Examples include the following:. Although you may prepare a holiday meal or take a family vacation without a concrete plan, would you build a new home without one? Not likely. The days of men building log cabins with nothing more than a piece of wooded land, an axe, and a dream are all but gone at least in the United States.
A structured approach to planning complex systems development projects can lower risks and save organizations large amounts of money…just as working from a detailed set of plans and drawings greatly improves the construction of a new home. Following are some concepts for reducing risks and improving success rates on these kinds of projects:.
The field of systems engineering offers some important management techniques that we can use to manage large, complex projects.
Focused on ways to design and manage complex engineering systems, this discipline includes a set of processes, practices, and tools designed to break down a complex system into simpler components for easier management and then integrate those components into an optimal overall system that achieves a set of desired objectives. We can learn some valuable lessons from the systems engineering methodology and apply some of these concepts to the management of large, complex projects.
The top level of the V represents the entire assembled end product—be it an automobile, a computer system, or even a building—and each subsequent lower level represents decomposition into simpler components until we reach the lowest level, the molecular level at which the most detailed work is performed. The process begins on the upper left with the definition of overall product requirements, then proceeds to further—and more detailed—levels of requirements decomposition until reaching the most detailed level at the bottom.
At this level the bottom of the V , the simplest components are designed, built, and tested. The components are then gradually reassembled and tested integrated at each upward level until finally the end product is completely reassembled, tested, and integrated. Notice also in Exhibit 3 the process gateways that lie between each level, on the way down the left side of the V decomposition and on the way up the right side of the V integration. There may be situations in which the decision makers choose to stop all work entirely; in product development projects or programs, it may be decided at one of these points that market conditions have changed and major changes will be made to the direction of the product or that the product should be killed altogether.
Before proceeding further into applying the systems engineering V methodology to the management of complex systems projects, it is important to review techniques used for scheduling large projects. There are benefits to each approach. It becomes clear that the benefits of using multiple, simple, integrated project schedules far outweigh those of a single, large, complex project schedule, especially considering the frequent need for delegation, distributed and concurrent editing, and ease of use.