These CARDS are an excellent alternative to interaction diagrams, the only drawback being that they lack a visual representation of how messages flow among objects.
这些卡片是交互图的极好选择，唯一的缺点是它们缺少对象之间的消息如何流动的可视化表示。
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Because the interaction is based on a URI rather than an API, a client written in any language can receive a representation via an HTTP request.