By Paul B. Adamsen II

ISBN-10: 0849322960

ISBN-13: 9780849322969

Undefined, executive, and educational efforts to create a generalized platforms engineering procedure have time and again fallen brief. the result? platforms engineering disasters that produce losses just like the September 1999 destruction of the Mars weather Orbiter. an easy details move blunders among groups inspired far-reaching managerial and technical alterations at NASA's Jet Propulsion Laboratory-evidence of structures engineering complexity. Struck by means of the volume of chaos which may fast strengthen from such intricacy, the writer has committed a number of years to the improvement and refinement of the framework delineated during this paintings that can assist you "control the chaos".A Framework for advanced approach improvement develops a generalized method that distinguishes among "time" and "logical" domains-how I/O evolves over the years as opposed to the instant application kingdom. Explicitly characterised and pointed out, they retain the framework. by way of combining those perspectives, you get an software particular strategy, flexible adequate for plenty of diverse contexts. It additionally defines the technical actions that represent the process improvement technique and the way they attach and have interaction with managerial actions. it is possible for you to to combine those actions and notice the utmost strength for fulfillment. A key point to luck in modern-day paradigm of "faster, greater, more affordable" structures and reducing source degrees is a transparent, achievable plan that may be simply applied. A Framework for advanced method improvement illustrates the sort of plan, distilling the basic features of approach layout right into a logical method for a well-organized improvement software. With A Framework for advanced procedure improvement, you should use the author's approach-developed within the crucible of the true world-to enhance sound complicated platforms in an prepared and effective demeanour.

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Additional resources for A framework for complex system development

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A central goal of this book is to define a process that accurately reflects what ought to occur on a well-ordered system development program in the real world. And why is this important? There are several reasons: • Cost Containment — Provide a basis for accurate modeling of the program to facilitate more accurate estimates to complete, and for more accurate change impact analyses. This will serve to maximize the probability that the program will be completed within its cost and schedule constraints.

An example of non-convergence occurred on a space program in which the author was involved. The spacecraft was required to communicate with a relay satellite during a time when the two prescribed orbits precluded such communication. Because this was an impossible requirements set to satisfy, the requirements activity could not converge. The requirements set needed to be changed in order to enable the Requirements Development activity to converge upon a solution. Another example is the case in which a function cannot be performed without input from another function.

In reality, each sub-activity could be modeled as a rework cycle, each with its own quality level. In a real program there would likely be many more levels in the hierarchy. It is apparent that even small lapses in quality at upper levels in the hierarchy can have a devastating effect on the quality achievable at lower levels in the hierarchy. Because of feedback effects, this influences quality at upper levels as well. A vicious cycle begins to emerge. Key Point It is clear from this discussion that improving the quality of work performed should be a major priority in sound program management.

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A framework for complex system development by Paul B. Adamsen II

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