The objective of this effort is developing an integrated end-to-end (spanning the whole “life cycle”) cyber SA (situation awareness) solution to fill the gap between machine information processing and analysts’ mental processes.  The scope of this effort is to develop new capabilities for computer-aided human-centric cyber situation awareness. Our solution adds the new algorithms and techniques that are needed for the machine SA system to work in concert with the human SA system. Our solution integrates the “human cognition” aspects and the “computer algorithm” aspects of cyber SA. Our solution also integrates situation recognition, impact assessment, causality analysis, trend analysis, and assessment of system assurance. We will develop prototype capabilities in each year of the project that build on prior years’ capabilities with the goal of having a testable executable prototype at each stage of the project.