問19
頻出度★★★
住宅地に設置してある飲料の自動販売機に組み込まれた通信機器と, 遠隔で自動販売機を監視しているコンピュータが, ネットワークを介してデータを送受信することによって在庫管理を実現するような仕組みがある。このように, 機械同士がネットワークを介して互いに情報をやり取りすることによって, 自律的に高度な制御や動作を行う仕組みはどれか。
令和5年度 ITパスポート試験 問19
ストラテジ系システム戦略 › 業務プロセス
This question's explanation and your answers so far.
解説
問 19
Incorrectア
MOT (Management of Technology) is a management approach that leverages technology in business to strengthen competitiveness. It has nothing to do with network communication between machines, so it is wrong.
Incorrectイ
MRP (Material Requirements Planning) is a production-management method that calculates the quantity of parts and materials needed and the timing of orders based on a production plan. It is not a mechanism for autonomous control through data exchange between machines, so it is wrong.
- ウ
正解 The correct answer is M2M, choice “ウ”. M2M stands for “Machine to Machine” and refers to a mechanism in which machines (devices) exchange information directly with one another over a network without human involvement, carrying out monitoring, control, and operation autonomously. In this question, the communication device built into the vending machine sends inventory data to a remote monitoring computer, which then manages the inventory automatically based on that data. This is a typical example of M2M, where machines exchange information over a network and control themselves autonomously, so “ウ” is correct.
Incorrectエ
O2O (Online to Offline) is a marketing approach that uses online measures such as web ads and coupons to drive consumers toward purchases at physical (offline) stores. It targets people (consumers) and is not a mechanism for communication between machines, so it is wrong.
ここがポイント
- M2M = Machine to Machine: a mechanism in which machines exchange information over a network without human involvement and perform monitoring and control autonomously (a foundational technology of IoT).
- Distinguishing the confusing acronyms: MOT = management of technology, MRP = material requirements planning, O2O = driving customers from online to physical stores. When a question asks about autonomous communication between machines, the answer is M2M.
用語