表示逻辑与业务逻辑分隔开，业务逻辑又与持久化存储分隔开。
Presentation logic is separated from business logic, which is further separated from the persistent storage.
解决的办法是将前端的表示逻辑与后端的业务逻辑相分离，但是它们仍旧需要相互连接。
The solution is to separate the presentation logic of the front end from the business logic of the back end, but they still need to be connected.
您可能听说现在有上百种不同的方式，但是在开发Web应用程序时将表示逻辑与业务逻辑分离是很重要的。
You've probably heard it said a hundred different ways by now, but it really is important to separate presentation logic and business logic when you're developing a Web application.
与之不同的是，模板引擎向html添加了一组定制的标签，让您能够将条件、循环以及其他逻辑作为增强的HTML标记的一部分来表示。
In contrast, a template engine adds a custom set of tags to HTML that allows you to express conditions, loops, and other logic as part of the enhanced HTML markup.
此逻辑经常与表示信息交织在一起，即体系结构内没有清楚的关注分离，从而进一步限制了灵活性。
This logic was often interspersed with presentational information, meaning that there was no clear separation of concerns within the architecture, further restricting flexibility.
例如，php脚本可能使用一个模板引擎把业务逻辑与表示分隔开，它可以被看作单独的两层。
For example, a PHP script might use a template engine to separate business logic from the presentation, and be considered two separate tiers.
规范化决定在逻辑数据模型中得以完成，并导致实体-实体关系与超类型-子类型层次关系的最终规范化表示。
Normalization decisions are finalized in the logical data model resulting in the final normalized representation of entity-to-entity relationships as well as supertype-to-subtype hierarchies.
Extspaces：extspace是与一个字符串相关联的逻辑名称，该字符串表示外部数据的位置。
Extspaces: An extspace is a logical name associated with a arbitrary string that signifies the location of external data.
为了使页面更具有动态性，需要分离数据与表示逻辑。
To make the page more dynamic, we separate the data and presentation logic.
它表示一个正则表达式并提供了使正则表达式与字符串相匹配的逻辑。
It represents a regular expression and provides the logic to match the regular expression against strings.
用最简单的话来说，业务规则是与特定行业中的特定业务功能有关的决策逻辑的表示形式。
In its simplest terms, it is a representation of decision logic that is pertinent to a particular business function in a specific industry.
SOAPAPI使用XML文档来以类似的方式表示服务数据对象，从而同时与物理和逻辑模型中的内容结构通信。
The SOAP API USES XML documents to similarly represent Service Data Objects to communicate content structures in both the physical and logical model.
逻辑数据模型中实体之间的关系是通过外键来表示的，外键与引用实体的主键相关联。
Relationships between entities in the logical data model are represented through foreign keys that are associated to the primary keys of the referring entity.
流程的WS - BPEL表示形式(请参见图2)与业务模型类似，因为存在连接在一起的步骤以及条件分支逻辑。
The WS-BPEL representation of the process (Figure 2), is similar to the business model in that there are steps which are wired together, along with conditional branching logic.
这种封闭的模型使Velocity能够提供分离的模板表示层，与任何应用程序业务逻辑或者数据管理代码清晰地划分开。
This closed model allows Velocity to provide a decoupled templating presentation layer, cleanly separated from any application business logic or data management code.
如今的大多数Web应用程序与智能Web应用程序之间的显著区别是智能Web应用程序内的数据表示是通过语义定义的，而不只是在逻辑上定义。
A significant difference between most Web applications today and smart Web applications is that the data representation in a smart Web application is semantically defined rather than just logical.
这些问题的产生，是因为所采用的开发方法不能从根本上解决表示层与业务逻辑层、业务逻辑层与数据层相分离的问题。
The problem appears because of some shortcomings associated with the development methods, which cannot solve the separation among the presentation level, business logic level and data level.
分离对象的物理视图与逻辑视图，隐藏物理视图的实现细节，使算法工作在高层的逻辑视图上，并通过视图变换将高层算法映射到低层中间表示上。
We separate the physical view and logic view of IR, and make algorithms work on the high-level logic view, and map the high-level algorithms into low-level IR through view transformations.
接口节点与子网的物理或逻辑连接的表示形式。
Interface The representation of a physical or logical attachment of a node to a subnet.
数学家一直与逻辑和符号，但数百年来的基本法律逻辑被认为是理所当然的，从来没有表示象征。
Mathematicians have always worked with logic and symbols, but for centuries the underlying laws of logic were taken for granted, and never expressed symbolically.
以可计算性逻辑的完备子集cl4为基础进行知识表示，将知识分为简单知识与一般知识。
Based on the sound and complete subset CL4 of computability logic, knowledge representation is discussed by dividing knowledge into elementary and general ones.
当逻辑规则把输入数据和判定与目标或子目标联系起来时，它可用于专家系统，但此时数据常常是用似然语言而不是用确定语言表示。
It is used in expert systems when logical rules relate the input data and assertions to goals and subgoals but the data is often expressed in terms of likelihood rather than certainty.
本文从负数表示的研究引入对称三进制系统与对称三值逻辑。
Symmetric ternary systems and symmetric ternary logic are introduced from the research on the expression of negative Numbers.
本体表示语言与描述逻辑相结合，为本体推理的合理性和有效性提供了保证。
This ontology description languages and description logic had combined together, which ensured the ontology reasoning rationality and validity.
视图层：主要用来实现表示逻辑，实现与用户动态的交互。
View layer: mainly used to achieve presentation logic, to achieve dynamic interaction with the user.
复杂结构归纳学习方法按照知识表示方式不同分为基于逻辑的方法与基于数学图的方法。
The approaches adopted by inductive learning of complex structure can be classified into logic-based ones and graph-based ones according to knowledge representation.
复杂结构归纳学习方法按照知识表示方式不同分为基于逻辑的方法与基于数学图的方法。
The approaches adopted by inductive learning of complex structure can be classified into logic-based ones and graph-based ones according to knowledge representation.
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