November 2022
Intermediate to advanced
276 pages
3h 51m
Chinese
Content preview from 流架构
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78 ｜
第
3
章
受承诺者：“我承诺接受或利用主体。”
这些承诺的互惠性质可以使用符号
+
和
–
。我们可以在主体旁边用
a+
表示承
诺者的承诺，用
a-
表示互惠承诺，如图
3-3
所示。
承诺者 受承诺者
主体
主体
图
3
-
3
：互惠承诺符号
在这种表示法中，
–
Body
是一个信号，用于推断收到
+
Body
所描述的承诺。
换句话说，如果承诺是兑现一些东西，那么回报承诺将是接收或接受某物。
例如，如果一个政府承诺颁布一项法律，公民可能会承诺遵守该法律。
这只是允诺理论中表现力的一小部分，但它足以让我们开始探索如何使用这
些基础知识，对技术可能如何发展做出一些有根据的猜测。
3.3
构建一个流集成的价值链
沃德利地图和允诺理论的基本介绍完成后，让我们来研究如何构建地图。在
本节中，我们将从调查范围开始，定义一组相关用户和用户需求，然后添加
创建流集成的价值链所需的其他组件。然后，我们使用允诺理论来验证我们
的组件之间的关系。那就交付流集成而言，它们彼此承诺了什么？
3.3.1
建立地图的范围
在构建沃德利地图时，首先要做的就是明确地图的范围。范围的声明对于确
保我们的地图保持聚焦至关重要。范围可以是非常详细的，如“
100GB
以太
网卡”，也可以是非常笼统的，如“消费者互联网技术”。重要的是地图范
围包含用户的需求或那些你希望探究的用户需求。
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.