spl

SPL is an acronym with multiple meanings across different fields. This article highlights several widely encountered uses, spanning acoustics, computing, pharmaceuticals, software engineering, and programming.

Sound Pressure Level refers to a measure of the effective pressure of a sound relative to a reference value, expressed in decibels. The reference pressure in air is 20 micro pascals, and SPL is calculated as 20 times the log base 10 of p over p0, where p is the root-mean-square sound pressure. It is commonly measured with sound level meters to assess loudness, noise exposure, and compliance with regulatory limits, such as thresholds around work environments.

SPL in Splunk stands for Splunk Processing Language, a domain-specific language used to query, analyze, and visualize machine-generated data within the Splunk platform. SPL supports a pipeline syntax, search commands, and functions for statistical aggregation, reporting, and alerting, enabling users to extract insights from large time-series data.

Structured Product Labeling is an FDA standard for transmitting pharmaceutical labeling information in XML. SPL provides a machine-readable, standardized format to support regulatory submissions, data exchange, and compliance across product life cycles in the pharmaceutical and biotechnology industries.

Standard PHP Library is the collection of interfaces and classes in PHP that extend its core capabilities. Known components include SPL data structures (such as iterators and special collections), as well as utility features for working with traversable objects, exception handling, and more, improving common programming tasks.

Software Product Line is an engineering approach for managing a family of related software products. It emphasizes reuse of a common core architecture and assets, with systematic variation mechanisms to tailor products to different requirements while reducing development effort and time to market.