本論文では，エンドユーザである運営者自身が利用できる軽量ポータルサイト開発システムを提案する．本システムは，運営者が業務時間合間の限られた時間でポータルサイトの構築・運用ができることを目標とする．本システムの設計面での特徴は，1)スクレイピングからクローリング，サイトの運用まで一貫して開発が可能な「抽出規則作成分離型アーキテクチャ」を採用する，2)エンドユーザが使用できるPBD（Programming By Demonstration）を基本インタフェースとして要素技術を組み合わせる，の2点である．エンドユーザ6名（25～63歳の事務職）を被験者とする使用実験では，スクレイピング規則の定義からサイト運用までの一貫した課題の成功率が100%であり，それにかかわる時間も既存ツール（Karma）と同等以下であり，目標とした10分以内に収まることが確認された．TAM（Technology Acceptance Model）に基づくユーザのシステム受容度調査では，「システムを使うことの楽しさ」，「出力の品質」で良い評価を得て，「有用性」，「使用性」は中立の評価を得た．以上をもって，提案するシステムの有用性を示した．

In this paper, we propose a light-weight mashup development tool, designed for clerical workers who are given the responsibility of being end-user administrators of portal sites who do not have any programming skills. The tool allows end-users to develop and maintain their sites within limited time apart from their main responsibilities. The two characteristics of the system design are 1) “The Architecture of Definition-Application Separation for Extraction Rule” that enables end-users to manage entire procedure of a portal site, such as scraping, crawling, site creation, and uploading to server, and, 2) the PBD (Programming By Demonstration) method which is applied as the main user interface of the tool. Our experimental study shows that 100% of six clerical workers (ages 25 to 63) with no programming experience succeeded in completing the development and maintenance of a portal site within ten minutes. Their task completion time was faster than that attained with the most successful tool to date (Karma). The results of the questionnaire based on the TAM (Technology Acceptance Model) showedthat the system was accepted by the subjects with positive responses including “Enjoyment” and “Output Quality”. Their evaluation of the tool was neutral for “Usefulness” and “Ease of Use”. We conclude the effectiveness of the proposed system as being verified by these results.