第58行: |
第58行: |
| ==强化回路还是平衡回路== | | ==强化回路还是平衡回路== |
| | | |
− | To determine if a causal loop is reinforcing or balancing, one can start with an assumption, e.g. "Node 1 increases" and follow the loop around. The loop is:
| |
| | | |
| 为了确定一个因果回路是强化的还是平衡的,可以从假设开始,例如“节点1增加”,然后跟踪回路。回路是: | | 为了确定一个因果回路是强化的还是平衡的,可以从假设开始,例如“节点1增加”,然后跟踪回路。回路是: |
第67行: |
第66行: |
| | | |
| 或者换句话说: | | 或者换句话说: |
− | * [[reinforcing loop]]s have an even number of negative links (zero also is even, see example below) | + | *'''强化回路'''中有偶数个负链接(0也算作是偶数,可以看下面的例子说明)。 |
− | *强化回路中 | + | *'''平衡回路'''中有奇数个负链接。 |
− | * [[balancing loop]]s have an odd number of negative links.
| |
| | | |
− | Identifying reinforcing and balancing loops is an important step for identifying Reference Behaviour Patterns, i.e. possible dynamic behaviours of the system.
| |
| | | |
− | 识别强化和平衡回路是识别参考行为模式(即系统可能的动态行为)的重要步骤。
| + | 识别强化回路和平衡回路是识别参考行为模式(即系统可能的动态行为)的重要步骤。 |
| | | |
| | | |
− | Identifying reinforcing and balancing loops is an important step for identifying ''Reference Behaviour Patterns'', i.e. possible dynamic behaviours of the system.
| |
| | | |
− | * Reinforcing loops are associated with exponential increases/decreases. | + | *强化回路与指数增长和减少有关。 |
| + | *平衡回路与达到平衡稳定有关。 |
| | | |
− | If the system has delays (often denoted by drawing a short line across the causal link), the system might fluctuate.
| |
| | | |
| 如果系统有延迟(通常是通过在因果链接中绘制短线表示),则系统可能会发生波动。 | | 如果系统有延迟(通常是通过在因果链接中绘制短线表示),则系统可能会发生波动。 |
| | | |
− | * Balancing loops are associated with reaching a plateau.
| |
| | | |
− | If the system has delays (often denoted by drawing a short line across the causal link), the system might fluctuate.
| |
| | | |
| + | ===示例=== |
| | | |
− | | + | [[File:Adoption CLD.svg|centre|“适应”模型的因果环路图, 经常被用于演示系统的动力学过程]] |
− | frame
| |
− | | |
− | 框架
| |
− | | |
− | ===Example===
| |
− | | |
− | [[File:Adoption CLD.svg|centre|Causal loop diagram of ''Adoption'' model, used to demonstrate systems dynamics|frame]] | |
− | | |
− | frame
| |
− | | |
− | 框架
| |
− | | |
− | | |
− | | |
− | [[File:Causal_Loop_Diagram_of_a_Model.png|centre|Causal loop diagram of a model examining the growth or decline of a life insurance company|frame]]
| |
| | | |
| | | |
| + | [[File:Causal_Loop_Diagram_of_a_Model.png|centre|研究寿险公司的增长或衰退模型的因果环路图]] |
| | | |
| ==See also== | | ==See also== |