An example of an optional service is the policy service because not all repositories can (or need to) express their administration policies in a general way.
可选服务以策略服务为例，因为一般来说不是所有的知识库能够(或者需要)展示其管理策略。
Another reason, experts say, is related to the century-long policy of the US Forest Service to stop wildfires as quickly as possible.
专家们表示，另一个原因与美国林业局长达一个世纪的政策有关，即尽快扑灭野火。
SOA borrows concepts such as Policy, service Level Agreement and Quality of service from other aspects of Information Technology such as network management and managing it infrastructure.
SOA借用了网络管理和IT基础设施管理等其他信息技术领域的一些概念，比如策略、服务水平协议和服务质量。
Conduct research into mental health policy and service planning, including evaluation of policy implementation, and models of service organization and planning.
开展对精神卫生政策和服务计划、包括评价政策实施情况，以及服务组织和计划模式的研究。
Service policy describes assertions and obligations that service consumers or providers must adhere to or provide.
服务政策描述了服务消费者或者提供者所必须坚持或者提供的原则和义务。
In this case, requests from one service policy which demand excessive CPU and lead to overload could result in breached service goals for the other policy or for both policies.
在这种情况下，一个服务策略中的请求需要过多CPU资源，这会导致过载，进而导致另一个策略或这两个策略的服务目标被破坏。
However, this action can only be taken if ARFM was queuing traffic for the service policy, which was not the case in the previous example.
但是，这种措施只能用于ARFM正在让此服务策略的请求流排队的情况，而前面的示例不是这种情况。
Based on this information, it computes "allocations" for each service policy that are designed to ensure that service goals are met, assuming there is sufficient server capacity to do so.
它根据这些信息计算每个服务策略的“分配”，服务策略的设计目标是在有足够的服务器处理能力的情况下确保满足服务目标。
These allocations take the form of how many concurrent requests of each service policy are allowed through to the application servers at a time.
这些分配采用的形式是，对于每个服务策略，每次可以同时发送给应用服务器的请求数量。
Within a service policy, all requests are considered to be equivalent.
在一个服务策略中，所有请求都被认为是相当的。
All transaction classes in a service policy should have similar response time and CPU consumption patterns.
一个服务策略中的所有事务类应该具有相似的响应时间和CPU消耗量模式。
This approach forces this style of tagging to presume that every work item required every service and policy.
这个方法强制这个标记类型假设每个工作条目需要每个服务及策略。
They are supported by other views including: business modeling, organization, policy, service modeling, software modeling and technology.
其它支持它们的视图包括：业务建模、组织、策略、服务建模、软件建模和技术。
Instead, we typically end up with a mixed bag of data, process, service, and policy interoperability.
相反，我们通常碰到的都是数据、流程、服务和策略互操作性混合在一起。
Improves agility through a combination of policy, rules management and service selection capabilities.
通过结合策略、规则管理和服务选择功能改进敏捷性。
When initially configuring policies, one might intuitively define a single service policy for a given application, based on the importance of that application.
在最初配置策略时，用户可能根据直觉按应用程序的重要性只为给定的应用程序定义一个服务策略。
A service policy also includes an importance value which directly translates into what priority will be given to requests associated with the service policy.
服务策略还包含一个重要性值，它直接转换为将分配给与此服务策略相关联的请求的优先级。
To avoid this issue, service policies should be defined such that all traffic categorized to a given service policy has similar typical response times.
为了避免这个问题，在定义服务策略时，应该把典型响应时间相似的所有请求流归入一个服务策略。
This denotes policy assertions and constraints on the service.
它表示服务的策略主张和约束。
However, there are peak load scenarios where ARFM cannot meet the service policy goals and avoid overloading the nodes.
然而，在一些出现峰值负载的场景中，ARFM无法满足服务策略目标以及避免节点超载。
ARFM enqueues a requests based on the service policy associated with the request.
ARFM根据与请求相关联的服务策略从队列中取出请求。
ARFM makes predictions and calculations based on the observations of the traffic in each service policy.
ARFM根据对每个服务策略中的请求流的观察进行预测和计算。
Likewise, you can also attach a policy set to a service reference, its endpoints, or operations.
类似地，也可以将策略集附加到服务引用、其端点或操作。
Finally, a work class is tied to a specific service policy by an intermediary component called transaction class.
最后，一个工作类通过名为事务类的中间组件绑定到特定的服务策略。
A typical process of policy based service security management can be divided into five steps and described as follows.
如下面所述，一个基于策略的服务安全管理的典型流程可以分为五大步骤。
Until a system is properly configured with appropriate service policy definitions, consider disabling the traffic queuing function of ARFM.
如果还没有为系统配置适当的服务策略定义，应该考虑禁用ARFM的请求排队功能。
The first is a performance management policy called service policy, which is a type of service level agreement (SLA).
第一种是称为服务策略的性能管理策略，该策略是一种服务水平协议(SLA)。
This means that ARFM assumes that any two requests that fall into the same service policy have similar response times and CPU requirements.
这意味着，ARFM假设属于同一服务策略的任意两个请求具有相似的响应时间和CPU需求。
It bases this on the observed service times of prior requests for the same service policy.
这种预测基于属于同一服务策略的以前的请求的服务时间。
For transaction service policy definitions, this value is used only when defining policies that support manual recovery.
对于事务服务策略定义来讲，只有在定义支持手动恢复的策略的时候才会用到该值。
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