SLALOM：一种用于SLA规范和监控的语言
SLALOM: a Language for SLA specification and monitoring
摘要：
IT服务供应通常由服务水平协议（SLA）支持，旨在保证服务质量。但是，在定义和监控SLA时，客户视角（面向业务）和服务提供商视角（面向实现）之间存在差距，这一差距变得更加明显。本文提出了一种领域特定的语言（SLA语言的specificatiOn和监控- SLALOM），以弥补以前的差距。创建SLALOM的第一步是分解出公共概念，方法是将BPMN元模型与SLA生存周期的元模型组合在一起，如ITIL中所述。派生的元模型表示SLALOM抽象语法模型。第二步是针对不同的目标编写具体的语法，例如流程模型中的SLA表示。最后给出了一个自助金融终端支持的IT服务的SLALOM具体语法模型实例。
英文摘要：
IT services provisioning is usually underpinned by service level agreements (SLAs), aimed at guaranteeing services quality. However, there is a gap between the customer perspective (business oriented) and that of the service provider (implementation oriented) that becomes more evident while defining and monitoring SLAs. This paper proposes a domain specific language (SLA Language for specificatiOn and Monitoring - SLALOM) to bridge the previous gap. The first step in SLALOM creation was factoring out common concepts, by composing the BPMN metamodel with that of the SLA life cycle, as described in ITIL. The derived metamodel expresses the SLALOM abstract syntax model. The second step was to write concrete syntaxes targeting different aims, such as SLA representation in process models. An example of SLALOM's concrete syntax model instantiation for an IT service sup-ported by self-service financial terminals is presented.
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