A more thorough explanation:

The United States Court of Appeals for Veterans Claims is a federal court that has the power to review decisions made by the Board of Veterans’ Appeals (BVA). This court was created by the Veterans’ Judicial Review Act of 1988, which is part of the United States Code. The court is not part of the Department of Veterans’ Affairs (VA). It does not hold trials, receive evidence, or hear witnesses. Instead, it reviews the written record of a final BVA decision, reviews the parties’ briefs, and affirms or reverses the decision of the BVA. There are seven judges on the Court, who are appointed by the President and confirmed by the Senate.

For example, if a veteran files a claim for disability benefits and the BVA denies the claim, the veteran can appeal the decision to the United States Court of Appeals for Veterans Claims. The court will review the written record of the BVA decision and the parties’ briefs, and then make a decision to affirm or reverse the BVA decision.