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Managing variants of a personalized product

机译：管理个性化产品的变体

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A product variant table is a table that lists legal combinations of product features. Variant tables can be used to constrain the variability offered for a personalized product. The concept of such a table is easy to understand. Hence, variant tables are natural to use when ensuring the completeness and correctness of a quote/order for a customizable product. They are also used to filter out inadmissible choices for features in an interactive specification (configuration) process. Variant tables can be maintained as relational (database) tables, using spreadsheets, or in proprietary ways offered by the product modeling environment. Variant tables can become quite large. A way of compressing them is then sought that supports a space-efficient representation and a time-efficient evaluation. The motivation of this work is to develop a simple approach to compress/compile a variant table into an easy to read, but possibly hard to write form that can be deployed in a business setting at acceptable cost and risk in a similar manner as a database. The main result is a simple compression and evaluation scheme for an individual variant table called a Variant Decomposition Diagram (VDD). A VDD supports efficient consistency checks, the filtering of inadmissible features, and iteration over the table. A simple static heuristic for decomposition order is proposed that suggests itself from a "column oriented viewpoint". This heuristic is not always optimal, but it has the advantage of allowing fast compilation of a variant table into a VDD. Compression results for a publicly available model of a Renault Megane are given. With the proposed heuristic the VDD is a specialization of a Zero-suppressed (binary) Decision Diagram (ZDD) (Knuth 2011) and also maps to a Multi-valued Decision Diagram (MDD) (Andersen et al. 2007; Berndt et al. 2012).
机译：产品变型表是列出产品功能的合法组合的表。变量表可用于约束为个性化产品提供的可变性。这种表格的概念很容易理解。因此，在确保可定制产品的报价/订单的完整性和正确性时，可以使用变式表。它们还用于过滤交互式规范（配置）过程中功能的不允许选择。可以使用电子表格或产品建模环境提供的专有方式将变体表维护为关系（数据库）表。变量表可能会变得很大。然后寻求一种压缩它们的方法，该方法支持节省空间的表示和节省时间的评估。这项工作的目的是开发一种简单的方法来将变体表压缩/编译成易于阅读但可能很难编写的形式，该形式可以以可接受的成本和风险以与数据库类似的方式部署在业务环境中。 。主要结果是针对单个变量表的简单压缩和评估方案，称为变量分解图（VDD）。 VDD支持高效的一致性检查，不可接受功能的过滤以及表格的迭代。提出了一种简单的分解顺序静态启发式方法，它从“面向列的观点”提出了自己。这种启发式方法并不总是最佳的，但它具有允许将变量表快速编译为VDD的优点。给出了可公开获得的雷诺梅根车型的压缩结果。借助提议的启发式方法，VDD是零抑制（二进制）决策图（ZDD）的特殊化（Knuth 2011），并且映射到多值决策图（MDD）（Andersen等人2007; Berndt等人。 2012）。

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