官网地址：https://developers.sap.com/tutorials/cp-cf-businessrules04-create-project.html
A project is used to configure and manage the entities of business rules. Entities of business rules include data objects, rules, rule sets, and rule services. You can create projects in the Manage Rule Projects application, which can be accessed from the Workflow Management home screen.
我们通过 project 来配置和管理 business rule 的实体，这些实体包括：
数据对象 data objects
规则 rules，规则集合 rule sets
规则服务 rule service
新建一个 project，然后为其分配 Data object，Rule services，Ruleset 和具体的 rules：
Data objects are the building blocks of a project. It can hold the input as well as output information of a business rule.
数据对象是项目的构建组成部分。 它可以保存业务规则的输入和输出信息。
In this tutorial, we will create data objects which hold the employee details and the details of the equipment assigned to the employee.
创建新的本地 data object：
给 data object 分配属性：
https://developers.sap.com/tutorials/cp-cf-businessrules05-dataobjects.html
创建 value help 的方法：
Value help 的类型，选择成 Value list：
手动维护 Value list 的 code 和 description：
A decision table rule is the collection of rule expressions in tabular format and sequentially executes each rule in the table.
决策表规则集是以表格格式维护的规则表达式的集合，并按顺序执行表中的每个规则。
A text rule is a decision logic in simple if-then format. The If condition of the text rule is evaluated by the system once the rule is triggered. Based on the result of the condition, the rule performs a set of operations.
创建 local rules：
创建一条新的 local rule：
点击设置按钮：
选择结果数据结构，即 determine 出来的设备信息：
创建好的 decision table 如下图所示：
再插入一条决策规则：
最终结果：
再创建一条 text rule：
如果设备金额大于 80，则需要走审批流程：
