Architectural design decisions have to be determined considering quality attribute or non-functional requirements. Typical SOA design decisions include the following topics.
架构的设计决策必须考虑品质需求或曰非功能性需求。
Is it possible to normalize a relation that has an attribute with no functional dependencies?
这可能使关系有没有功能上的依赖关系属性？
The essential and full condition that an attribute being a primary attribute when it appears in both the left and the right of Functional Dependencies are discussed.
着重讨论了当一个属性既出现于函数依赖的左部，又出现于函数依赖的右部时成为主属性的必要条件和充分条件。
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