Wellsite Information Transfer Specification

The Wellsite Information Transfer Specification is a specification for the transfer of drilling rig-related data. This petroleum industry standard is recognized by a number of companies internationally and is supported by many hardware devices and software applications.
WITS is a multi-layered specification:Layer 0 describes an ASCII-based transfer specificationLayer 1 describes a binary-based format based on 25 predefined fixed-size records and the Log Information Standard data-transmission specificationLayer 2 describes bidirectional communication using LIS Comment recordsLayer 2b describes buffering of dataLayer 4 extends the previous layers to use a different data exchange format,
Though still in active use as of 2013, the specification has been superseded by the XML-based .