如何解释术语基数?

发布于 2024-10-10 08:38:54 字数 478 浏览 1 评论 0原文

提供的 SRS 文档描述了最终产品、系统维护工具的各个方面。我唯一无法理解的段落是“组件基数”。在这种情况下这个术语意味着什么?

该表如下所示:

Component Cardinality
=========================
Trigger   | 1..*    | 1..*
Input     | 1..1    | 1..*
Transform | 1..*    | 1..1

另一张:

Component | Configuration | Cardinality
=======================================
Trigger   | Schedule      | 1
          | Recurrence    | 1
          | Condition     | 0..*

请帮助正确解释这一点。非常感谢

An SRS document is provided describing various aspects of the end-product, system maintenance tool. The only paragraph I'm failing to understand is "Component Cardinality". What does this term mean in such context?

The table looks like this:

Component Cardinality
=========================
Trigger   | 1..*    | 1..*
Input     | 1..1    | 1..*
Transform | 1..*    | 1..1

And the other one:

Component | Configuration | Cardinality
=======================================
Trigger   | Schedule      | 1
          | Recurrence    | 1
          | Condition     | 0..*

Please help to interpret this properly. Many thanks

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娇俏 2024-10-17 08:38:54

基数通常是指关系以及特定实体与另一个实体相关的数量。这两个表可能涉及输入/输出。

例如:

Component | Inputs | Outputs
----------------------------
Trigger   |  1-1   |  1-*
----------------------------
Input     |  1-1   |  1-*
----------------------------
Transform |  1-*   |  1-1

其中每一个都表示 1-1(一个实体到一个实体的关系)、1-*(一个实体到多个实体的关系)。

第二个图表似乎具体说明了有关单个组件的更多细节,并指示了可能的“触发器类型”。也许会出现单个计划触发器(基数为 1),单个重复触发器(也是基数为 1),并且 0 -N 条件触发器可能存在于系统中(从 0-* 基数),

这相当盲目,但我希望它可能会有所帮助。

Cardinality typically refers to relationships and how many of a specific entity relate to another entity. The two tables might refer to input / output.

For example:

Component | Inputs | Outputs
----------------------------
Trigger   |  1-1   |  1-*
----------------------------
Input     |  1-1   |  1-*
----------------------------
Transform |  1-*   |  1-1

Each of those indicating a 1-1 (One entity to One entity relationship), 1-* (One entity to many entities relationship).

The second chart seems to specific more details regarding a single component and indicating possible "types of Triggers. Perhaps that a single Schedule Trigger will be present (By cardinality 1), as will a single Recurrence Trigger (Also cardinality 1), and that 0-N Condition Triggers may be present in the system (From 0-* cardinality).

This is rather a shot in the dark but I hope it might help some.

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