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Chapter 1. Rule-authoring assets in Red Hat Decision Manager

Red Hat Decision Manager provides several assets that you can use to create business rules for your decision service. Each rule-authoring asset has different advantages, and you might prefer to use one or a combination of multiple assets depending on your goals and needs.

The following table highlights each rule-authoring asset in Decision Central to help you decide or confirm the best method for creating rules in your decision service.

Table 1.1. Rule-authoring assets in Decision Central
Asset	Highlights	Documentation
Guided decision tables	Are tables of rules that you create in a UI-based table designer in Decision Central Are a wizard-led alternative to uploaded decision table spreadsheets Provide fields and options for acceptable input Support template keys and values for creating rule templates Support hit policies, real-time validation, and other additional features not supported in other assets Are optimal for creating rules in a controlled tabular format to minimize compilation errors	Designing a decision service using guided decision tables
Uploaded decision tables	Are XLS or XLSX decision table spreadsheets that you upload into Decision Central Support template keys and values for creating rule templates Are optimal for creating rules in decision tables already managed outside of Decision Central Have strict syntax requirements for rules to be compiled properly when uploaded	Designing a decision service using uploaded decision tables
Guided rules	Are individual rules that you create in a UI-based rule designer in Decision Central Provide fields and options for acceptable input Are optimal for creating single rules in a controlled format to minimize compilation errors	Designing a decision service using guided rules
Guided rule templates	Are reusable rule structures that you create in a UI-based template designer in Decision Central Provide fields and options for acceptable input Support template keys and values for creating rule templates (fundamental to the purpose of this asset) Are optimal for creating many rules with the same rule structure but with different defined field values	Designing a decision service using guided rule templates
DRL rules	Are individual rules that you define directly in `.drl` text files Provide the most flexibility for defining rules and other technicalities of rule behavior Can be created in certain standalone environments and integrated with Red Hat Decision Manager Are optimal for creating rules that require advanced DRL options Have strict syntax requirements for rules to be compiled properly	Designing a decision service using DRL rules

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Chapter 1. Rule-authoring assets in Red Hat Decision Manager

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