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 							- • ·适合多样化Accommodating variety 示意图中元素的聚类应该有利于企业按照客户的具体要求来对产品做出 改动。打印机将在全世界电力标准不同的各个地区销售。所以，开发团队为与直流供 电有关的元素建立了单独的组件。 ·Elements should be clustered together to enable  the firm to vary the product in ways that will  have value for customers  l ·Example – a power supply needs to handle  different mains supplies in different countries
 							- • ·标准化Enabling standardisation 如果有一套元件在其他的产品中也可以使用，那么应该把它们集成到一个组件中。这样可以提高组件中各实体单元的生产质量。 l ·If a set of elements will be useful in other  products, they should be clustered together into  a single chunk l· This allows the physical elements of the chunk  to be produced in higher quantities
 							- • ·关联的便利性：有些相互作用可以在长距离内方便地传递。
-					- ◦ 设计简略的几何结构Create a rough geometric layout 几何结构可以采用草图、计算机模型或物理模型(例如卡板纸或泡沫制成)在二维平面或者三维空间中进行设计。设计几何结构时，设计人员要考虑组件之间的几何关系是否可以实现，并确定组件间的基本空间关系。 A geometric layout can be created in 2 or 3  dimensions or as physical models l· an example can be found on a later slide ¡ ·Creating a geometric layout forces the team to  consider  l ·whether the geometric interfaces among the  chunks are feasible and l ·to work out the basic dimensional  relationships among the chunks
+					- ◦ 设计简略的几何结构Create a rough geometric layout
+						- 几何结构可以采用草图、计算机模型或物理模型(例如卡板纸或泡沫制成)在二维平面或者三维空间中进行设计。设计几何结构时，设计人员要考虑组件之间的几何关系是否可以实现，并确定组件间的基本空间关系。 A geometric layout can be created in 2 or 3  dimensions or as physical models l· an example can be found on a later slide ¡ ·Creating a geometric layout forces the team to  consider  l ·whether the geometric interfaces among the  chunks are feasible and l ·to work out the basic dimensional  relationships among the chunks
 					- ◦ 确定基本的和附属的相互作用关系Identify the fundamental and incidental  interactions
-						- ▪ 各个组件可能是由不同的个人或小组设计的。组件之间存在着确定或不确定的相互作用关 系，所以各个小组要协调他们的设计，交流各自的信息。为了更好地管理这种协作过程，开发人员应该在系统设计阶段明确组件之间那些已知的相互作用。 组件之间的联系有两种类型。首先是基本的相互作用关系 (fundamental interaction), 它与 示意图中连接各组件的那些线条相对应。例如， 一张纸从纸张托盘移动到打印装置中，因为 这种基本的相互作用关系是系统运行的基础，所以，在最早设计示意图时就应该计划好，并 要很好地加以理解。其次是附属的相互作用关系 (incidental interaction), 它是功能单元特定的 实体设置或组件之间具体的几何排列造成的。例如，纸张托盘中的传动器所引起的震动会干  扰打印墨盒在X 轴的精确定位。  It is most likely that a different person or group will  be assigned to design each chunk  ¡ Because the chunks interact with one another in  both planned and unintended ways, these  different groups will have to coordinate their  activities and exchange information  ¡ To manage this coordination process better, the  team should identify the known interactions  between chunks during the system-level design  phase There are two categories of interaction  l Fundamental  ¡ Those which correspond to the lines on the  schematic that connect the chunks to one  another  ¡ These are the fundamental interactions of  the systems operation l Incidental ¡ Those that arise because of  l the particular physical implementation of  functional elements, or  l because of the geometric arrangement of  the chunks ¡ An incidental interaction graph is used to  document this type of interaction, see next  slide
+						- ▪ 各个组件可能是由不同的个人或小组设计的。组件之间存在着确定或不确定的相互作用关 系，所以各个小组要协调他们的设计，交流各自的信息。为了更好地管理这种协作过程，开发人员应该在系统设计阶段明确组件之间那些已知的相互作用。
+						- 组件之间的联系有两种类型。
+							- 首先是基本的相互作用关系 (fundamental interaction), 它与 示意图中连接各组件的那些线条相对应。例如， 一张纸从纸张托盘移动到打印装置中，因为 这种基本的相互作用关系是系统运行的基础，所以，在最早设计示意图时就应该计划好，并 要很好地加以理解。其次是附属的相互作用关系 (incidental interaction), 它是功能单元特定的 实体设置或组件之间具体的几何排列造成的。例如，纸张托盘中的传动器所引起的震动会干  扰打印墨盒在X 轴的精确定位。  It is most likely that a different person or group will  be assigned to design each chunk  ¡ Because the chunks interact with one another in  both planned and unintended ways, these  different groups will have to coordinate their  activities and exchange information  ¡ To manage this coordination process better, the  team should identify the known interactions  between chunks during the system-level design  phase There are two categories of interaction  l Fundamental  ¡ Those which correspond to the lines on the  schematic that connect the chunks to one  another  ¡ These are the fundamental interactions of  the systems operation l Incidental ¡ Those that arise because of  l the particular physical implementation of  functional elements, or  l because of the geometric arrangement of  the chunks ¡ An incidental interaction graph is used to  document this type of interaction, see next  slide
 			- DONE Week4
 	- LATER 概率论 (隔了一个周末)
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