By David W.; Kelliher, Timothy P.; Keegan, James G. Jr. Oliver
This publication explains tips to observe the main glossy platforms engineering modeling methods not just to items, approaches and company businesses, but in addition to the outline of the method of platforms engineering. the result's an simply understood description of the structures engineering method that are adapted to the numerous methodologies, notations and instruments that compete for adoption. The e-book presents an engineering foundation for: specification of near-optimal items and approaches; tailoring the structures engineering strategy to advertisement or aerospace initiatives; choice of a particular methodlogy and notation; choice and improvement of instruments for automation; and coaching scholars in a platforms improvement disciplines.
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Additional resources for Engineering Complex Systems With Models and Objects
The objects in the environment with which the knife interconnects are the person, the pocket, and the workpiece. , A context of multitool pocket knife shows these interconnections. If not needed for clarity, the line between person and pocket and the line between person and work piece can be eliminated because they do not show interconnections directly to pocket knife and are not essential for understanding its context. Basics of Structure stores multitool Pocket Knife operates on grasps opens tool applies force to Pocket places knife in, removes knife from Person Workpiece closes tool 46 holds Figure 2-17.
2 Basic views of structure The key views of information used to express structure are things or objects, their internal attributes, and the associations among them. , is a picture of the relationships among these basic views and their relationships to the description of a system’s structure. Basics of Structure 23 Figure 2-2. Description of structure: the elemental views Object classes are the primary building block for all structure models. They model the elemental pieces of a system’s structure.
If we look at a different attribute of the original class, Number of Blades we find that it is no longer necessary. The aggregation structure clearly shows how many blades the knife has. It is eliminated. The remainder of the original attributes must be similarly considered. Now consider the methods from the original design. Tool specific functionality such as “cut” and “open can” need to be moved out of the Pocket Knife and into the appropriate tool classes. With this change we begin to see the an improved, more flexible design.