Apache: Big Data 2015

Big Data without Data Quality becomes messy and meaningless in most cases. Therefore, data and measurements have to be stored and transferred in a standard way.
We all know that when representing a temperature, for example, we normally have it as decimal/float. But, is this float in Celsius? Fahrenheit? Kelvin?

One of the most vivid examples was Mars Climate Orbiter being lost as the spacecraft went into orbital insertion, due to ground-based computer software which produced output in non-SI units of pound-seconds (lbf×s) instead of the metric units of newton-seconds (N×s) specified in the contract between NASA and Lockheed.

In this session we're going to explore data quality and measurement standards like ISO 80000 or UCUM (Unified Code for Units of Measure), Unit support for programming languages and APIs plus projects using them like Apache SIS, Performance Co-Pilot or uDig.