CONCLUSION
This study demonstrates how form improvement guidelines
can help improve the usability of web forms. In contrast to
former research that focused on the evaluation of single
aspects, the present study uses a holistic approach. In a
controlled lab experiment we were able to show the
combined effectiveness of 20 guidelines on real web forms.
The forms used were taken from real websites and therefore
reveal that web forms are often implemented in suboptimal
ways that lead to lower transaction speed and customer
satisfaction. In the worst case, users may not be able to
complete the transaction at all. Our results show that even
forms on high traffic websites can benefit from an
improvement. Furthermore, we showed the advantages of a
multi-method approach to evaluate guidelines. We hope this
paper animates other researchers to empirically validate
existing or new guidelines.
ACKNOWLEDGMENTS
Note that preliminary data on this study has been presented
as “Work-in-progress” at CHI 2013 [28]. In comparison to
this publication, we expand these data by investigating
more participants and extending our analysis of user
performance data (error analysis, eye tracking data,
Keystroke Level Model comparison) and of questionnaire
data and interviews. Moreover, we compare the ratings
from experts and the study data of our participants and
discuss the importance of single guidelines.
Alexandre N. Tuch was supported by the Swiss National
Science Foundation under fellowship number PBBSP1
144196. Further, the authors would like to thank Lars
Frasseck for the technical implementation and the usability
experts and all participants for their valuable contribution to
this study.
CONCLUSIONThis study demonstrates how form improvement guidelinescan help improve the usability of web forms. In contrast toformer research that focused on the evaluation of singleaspects, the present study uses a holistic approach. In acontrolled lab experiment we were able to show thecombined effectiveness of 20 guidelines on real web forms.The forms used were taken from real websites and thereforereveal that web forms are often implemented in suboptimalways that lead to lower transaction speed and customersatisfaction. In the worst case, users may not be able tocomplete the transaction at all. Our results show that evenforms on high traffic websites can benefit from animprovement. Furthermore, we showed the advantages of amulti-method approach to evaluate guidelines. We hope thispaper animates other researchers to empirically validateexisting or new guidelines.ACKNOWLEDGMENTSNote that preliminary data on this study has been presentedas “Work-in-progress” at CHI 2013 [28]. In comparison tothis publication, we expand these data by investigatingmore participants and extending our analysis of userperformance data (error analysis, eye tracking data,Keystroke Level Model comparison) and of questionnairedata and interviews. Moreover, we compare the ratingsfrom experts and the study data of our participants anddiscuss the importance of single guidelines.Alexandre N. Tuch was supported by the Swiss Nationalมูลนิธิวิทยาศาสตร์ภายใต้สามัคคีธรรมหมายเลข PBBSP1144196 เพิ่มเติม ผู้เขียนอยากขอขอบคุณ LarsFrasseck สำหรับใช้งานทางด้านเทคนิคและการใช้งานผู้เชี่ยวชาญและผู้เข้าร่วมทั้งหมดสำหรับเงินสมทบของพวกเขามีคุณค่าการศึกษานี้
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