Database Reference
In-Depth Information
management repositories and networked attached storage systems—to manage
this kind of information, and the data began to increase in size and started to
be measured at petabyte scales. In the 2010s, the information that organizations
try to manage has broadened to include many other kinds of data. In this era,
everyone and everything is leaving a digital footprint.
Figure 1.10
shows a summary
perspective on sources of Big Data generated by new applications and the scale and
growth rate of the data. These applications, which generate data volumes that can
be measured in exabyte scale, provide opportunities for new analytics and driving
new value for organizations. The data now comes from multiple sources, such as
these:
• Medical information, such as genomic sequencing and diagnostic imaging
• Photos and video footage uploaded to the World Wide Web
• Video surveillance, such as the thousands of video cameras spread across a
city
• Mobile devices, which provide geospatial location data of the users, as well
as metadata about text messages, phone calls, and application usage on
smart phones
• Smart devices, which provide sensor-based collection of information from
smart electric grids, smart buildings, and many other public and industry
infrastructures
• Nontraditional IT devices, including the use of radio-frequency
identification (RFID) readers, GPS navigation systems, and seismic
processing
