This is a sources sought notice for Advanced Signatures Technologies support services, not a request for proposals. The work involves supporting new software technologies for Big Data and Cloud Computing to improve Navy data processing architectures, providing signatures guidance for anti-submarine warfare. The anticipated period of performance is five years, consisting of a one-year base period and four one-year options. The work is currently being performed in Sunnyvale, CA. The government is seeking industry feedback on draft documents to help shape the future acquisition strategy.