問53
頻出度★★★
コンピュータシステムに関する費用a～cのうち, TCOに含まれるものだけを全て挙げたものはどれか。 a 運用に関わる消耗品費 b システム導入に関わる初期費用 c 利用者教育に関わる費用
平成27年度 秋期 ITパスポート試験 問53
テクノロジ系システム構成要素 › システムの評価指標
This question's explanation and your answers so far.
解説
問 53
Incorrectア
a and b are correctly included in the TCO, but c “cost related to user education” is also a cost that accompanies operation and management and is therefore included in the TCO. This option omits c, so it is incomplete and wrong.
- イ
正解 TCO (Total Cost of Ownership) is the total of all costs incurred over the entire life cycle of a system, from introduction through operation and maintenance to disposal. It broadly includes both the “initial cost (the cost at the time of introduction)” and the “operating cost (running cost)”. Classifying a to c in the question: a “consumables cost related to operation” is an operating cost, b “initial cost related to system introduction” is an initial cost, and c “cost related to user education” is also a cost that arises in connection with introduction and operation, so it is also included in the TCO. Therefore a, b, and c are all included in the TCO, and the correct answer is “イ (a, b, c)”.
Incorrectウ
a and c are correctly included in the TCO, but b “initial cost related to system introduction” is the very initial cost that forms the core of the TCO and is necessarily included. This option omits b, so it is wrong.
Incorrectエ
b and c are correctly included in the TCO, but a “consumables cost related to operation” is also included in the TCO as an operating cost. This option omits a, so it is wrong.
ここがポイント
- TCO (Total Cost of Ownership) = the sum of the initial cost and the operating cost, representing the cost over the entire life cycle from introduction to disposal.
- Not only direct costs such as hardware purchase costs, but also indirectly and continuously incurred costs such as consumables and user education costs are included in the TCO.
用語