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SLIs form the basis of service level objectives (SLOs), which in turn form the basis of service level agreements (SLAs); [1] an SLI can be called an SLA metric (also customer service metric, or simply service metric). Though every system is different in the services provided, often common SLIs are used.
The SLO are formed by setting goals for metrics (commonly called service level indicators, SLIs). As an example, an availability SLO may be defined as the expected measured value of an availability SLI over a prescribed duration (e.g. four weeks). The availability SLI used will vary based on the nature and architecture of the service.
The origins of NPS date to a 2003 Harvard Business Review article by Reichheld titled "The One Number You Need To Grow". [3] Reichheld said he found the "would you recommend" question the best predictor of return business and word of mouth marketing, compared to equivalent questions like "How satisfied are you?", "Does this company deserve your loyalty?", and "Do you intend to return?".
An operational-level agreement (OLA) defines interdependent relationships in support of a service-level agreement (SLA). [1] The agreement describes the responsibilities of each internal support group toward other support groups, including the process and timeframe for delivery of their services.
Job interview candidates who describe a “Target” they set themselves instead of an externally imposed “Task” emphasize their own intrinsic motivation to perform and to develop their performance. Action: What did you do? The interviewer will be looking for information on what you did, why you did it and what the alternatives were.
In this case it is required to have high levels of failure detectability and avoidance of common cause failures. If redundant parts are used in parallel and have independent failure (e.g. by not being within the same data center), they can exponentially increase the availability and make the overall system highly available.
In software engineering and development, a software metric is a standard of measure of a degree to which a software system or process possesses some property. [1] [2] Even if a metric is not a measurement (metrics are functions, while measurements are the numbers obtained by the application of metrics), often the two terms are used as synonyms.
These Level 1 metrics are the calculations by which an implementing organization can measure how successful they are in achieving their desired positioning within the competitive market space. The metrics in the model are hierarchical, just as the process elements are hierarchical. Level 1 metrics are created from lower-level calculations.