Memorandum
Number One records a memorandum, awaiting the arrival of Ensign Spock
A memorandum was a type of written report.
In 2254, Lieutenant Commander Una was composing a Starfleet memorandum (file no. C-8102, archive cat. no. R-221-004) concerning the effective use of photon torpedoes as applied to the quantum-stochastic models of combat salvo analysis, asserting that an in-depth analysis of torpedo accuracy was needed. (ST: "Q&A")
In 2374, a PADD containing a draft of a secret memorandum addressed to Gul Dukat was "lost" by its writer, Damar. In it, he suggested the poisoning the last remaining ration of ketracel-white in order to eliminate Jem'Hadar suffering from withdrawal due to its shortage.
In reality, Rom had stolen it and made sure the Jem'Hadar found it. This led to a fight which left three Cardassians dead and several patrons of Quark's injured. Later, Weyoun berated Damar in Dukat's presence, asking how the Cardassian could "have been so stupid as to leave such an inflammatory document lying around for anyone to find?" (DS9: "Behind the Lines")