問15
頻出度★★☆
RFPに基づいて提出された提案書を評価するための表を作成した。最も評価点が高い会社はどれか。ここで，◎は4点，○は3点，△は2点，×は1点の評価点を表す。また，評価点は，金額，内容，実績の各値に重み付けしたものを合算して算出するものとする。
| 評価項目 | 重み | A社 | B社 | C社 | D社 |
|---|---|---|---|---|---|
| 金額 | 3 | △ | ◎ | △ | ○ |
| 内容 | 4 | ◎ | ○ | ○ | △ |
| 実績 | 1 | × | × | ◎ | ○ |
平成30年度 秋期 ITパスポート試験 問15
ストラテジ系システム企画 › 調達計画・実施
This question's explanation and your answers so far.
解説
問 15
Incorrectア
For Company A: Amount △=2×3=6, Content ◎=4×4=16, Track record ×=1×1=1, total 23 points. Content is a perfect score, but the amount is low and the track record is the lowest, so it falls short of Company B's 25 points and is not the highest.
- イ
正解 Convert each symbol into points (◎=4, ○=3, △=2, ×=1), then multiply by the weight of each evaluation item (Amount 3, Content 4, Track record 1) and sum them. For Company B: Amount ◎=4×3=12, Content ○=3×4=12, Track record ×=1×1=1, total 25 points. Company A=23, Company C=22, Company D=20, so Company B with 25 points is the highest. Therefore the correct answer is イ (Company B). The key is that Company B earns high ratings on the heavily weighted Amount and Content items.
Incorrectウ
For Company C: Amount △=2×3=6, Content ○=3×4=12, Track record ◎=4×1=4, total 22 points. Even though the track record is a perfect score, its weight is only 1 (the smallest), so its contribution to the total is small and it does not reach Company B.
Incorrectエ
For Company D: Amount ○=3×3=9, Content △=2×4=8, Track record ○=3×1=3, total 20 points, the lowest among the four companies. It has no outstandingly high-rated item, so it cannot be the highest.
ここがポイント
- Weighted evaluation (weighted average / weighted sum) — understand the calculation method of converting symbols into points, multiplying by each item's weight, and summing them.
- Ratings on the heavily weighted items (here, Content's 4 and Amount's 3) largely determine the total score, whereas a perfect score on a low-weight item has only limited impact.
用語