インターネット上でのディジタルフィルタ設計サービスのインタフェース改善 Improvement in User Interface of Digital Filter Design Services over the Internet

This paper presents the improvement in user interface of digital filter design services (DF-Design) over the internet (http://momiji.i.ishikawa-nct.ac.jp/). This improvement has been realized by a renewal of the website that is providing DF-Design by introducing Style Sheets and rewriting HTML files, and by a change of error processes and a control of a form input field status by using JavaScript. In addition, a sharing of Style Sheets and HTML documents by SSI(Server Side Include) enable the reduction in cost of continuing maintenance by system administrator.