Related Specifications‌ Sample Clauses

Related Specifications‌. WS-Agreement does not mandate a particular language for describing agreement terms such as constraints. Also, in addition to describing the SLA, management systems also need to be able to report the usage of services. Therefore we report briefly here on some related specifications for describing data. UncertML35 is a conceptual model and XML encoding designed for encapsulating probabilistic uncertainties. It comes from the geographic information systems (GIS) field and is currently being evaluated by the Open Geospatial Consortium (OGC). It enables the expression in XML of uncertainties in several ways, such as probability distributions, statistics (means, standard deviations, etc) and sampled data sets. Figure 21 shows how a standard deviation is represented in UncertML. <un:Statistic definition="▇▇▇▇://▇▇▇▇▇▇▇▇▇▇.▇▇▇▇▇▇▇▇.▇▇▇/statistics/standard_deviation"> <un:value>12.08</un:value> </un:Statistic> UncertML may be useful in two ways: (1) when reporting usage data can be aggregated and statistical reports generated instead of reporting the raw monitoring data and (2) when negotiating an SLA it may be useful to be able to define constraints on either party in statistical terms instead of hard guarantees.