Which statement about DISS implementation is true?

The statement that DISS officially launched in 2019 is accurate because it marks the beginning of the Defense Information System for Security (DISS) transition from its predecessor, the Joint Personnel Adjudication System (JPAS). This was an essential development in modernizing how security clearance data was managed, leading to improved efficiency and better integration of information across various agencies.

The choice that suggests a gradual rollout over several years could imply a longer timeline than was actual, as DISS was aimed at achieving quicker and more effective access to personnel security-related information right from its launch. The other statements about it occurring in the early 2020s and replacing a long-standing system immediately fail to capture the essence of DISS’s implementation timeline and method, which was designed to be systematic and phased rather than abrupt. This approach facilitates smoother adaptations for users accustomed to existing systems.