8x8

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Across
  1. 4. The act of finding a solution to a problem or dispute." (10 letters)
  2. 6. Achieving maximum productivity with minimum wasted effort." (9 letters)
Down
  1. 1. Smooth and without interruptions or noticeable transitions." (8 letters)
  2. 2. To identify or determine the cause of a problem or illness." (8 letters)
  3. 3. Making the best or most effective use of a situation or resource." (10 letters)
  4. 5. Active involvement or interaction between two parties." (10 letters)