正解An RFP (Request For Proposal) is a document that, when procuring a system, the ordering party prepares by compiling its requirements — the necessary functions, performance, budget, delivery date, contract conditions, and so on — and presents to vendors in order to invite proposals. The party that bears responsibility for deciding the requirements is on the ordering side, so the author must be “the person responsible for introducing that system”. In the member table of this question, the person responsible for introducing the reservation system is Mr. B. Therefore it is Mr. B who writes the RFP, while project members Mr. C, D, and E support his writing from the standpoint of identifying the on-site business requirements, and Mr. F of the information systems department supports it as an in-house supporter familiar with technical and procurement matters; this is the appropriate division of roles. So ア, which says “Mr. B writes it, and Mr. C, D, E, and F support the writing”, is the most appropriate.
×Incorrectイ
Mr. C, D, and E have the role of “project member” and are not in a position to bear responsibility for introducing the reservation system. An RFP is a document that fixes the requirements and the procurement conditions, and its content carries the responsibility of placing the order, so it is inappropriate for one of the members to become the author while bypassing Mr. B, the person responsible. Mr. C, D, and E should stay on the supporting side, providing the business requirements and the like.
×Incorrectウ
Mr. F is, just as his role name says, “a supporter from the information systems department”; his role is to provide support, not to be the author. In addition, Mr. G is the person in charge from the meeting room construction contractor, that is, an outside vendor on the side that is asked to submit a proposal. If a vendor that is a candidate to receive the order were allowed to help the ordering party write the RFP, the requirements would be distorted into a form favorable to that contractor and a fair comparison and selection would become impossible, so he is inappropriate as a supporter as well.
×Incorrectエ
Mr. G is the person in charge from the meeting room construction contractor, and he is on the side that receives the RFP and submits a proposal (the order-receiving side). Having the order-receiving side write the ordering party's RFP means setting the conditions oneself and then bidding on them oneself, a self-dealing arrangement that fundamentally undermines the fairness and transparency of the procurement. The RFP must always be written by the ordering party, and vendors submit their proposals in response to it; this separation of roles must not be broken.
ここがポイント
An RFP (Request For Proposal) is a document written by the ordering party — the side introducing the system — to invite proposals from vendors. Procurement proceeds in this order: gather information from vendors with an RFI (Request For Information) → present the RFP → vendors submit their proposals → evaluate and select, then sign the contract. The author is the person responsible for introducing that system, and the other people involved take supporting roles.
From the standpoint of fairness in procurement, outside vendors on the side that is asked to submit proposals must not be involved in writing the RFP or in supporting its writing. Clearly separating the roles of the ordering party (the side that writes) and the candidate suppliers (the side that proposes) is the precondition for comparing multiple vendors fairly and selecting among them.