本研究主要目的是想探討不同消費者特性、新產品屬性及環境變數對消費者購買資訊家電產品意願的影響，同時探討創新採用者類型在消費者特性、新產品屬性及環境變數上的差異，期望能對企業在行銷實務及產品研發上有所幫助。
本研究以PDA為實證標的，採取便利抽樣，針對20歲以上的消費者進行問卷發放，共發放350份，回收230份，有效問卷194份，有效回收率55.43％。
研究結果發現消費者的人格特質、產品知識、知覺風險、自我效能及任務價值與購買意願具有顯著關係；新產品的複雜性、相容性及相對優勢與購買意願具有顯著關係；就環境變數而言，社會支持與購買意願具有顯著關係。
研究結果顯示，依據消費者採用新產品的時程，將消費者分成早期使用者、早期大眾、晚期大眾及落後者時，越早期使用PDA的消費者其人格特質較開放、產品知識較高、知覺風險較低、自我效能較高、任務價值較高且較具冒險心；就新產品屬性而言，越早期使用PDA的消費者較容易被新產品的相對優勢及相容性所吸引，較不會在意新產品的複雜性；就環境變數而言，越早期使用PDA的消費者的社會網路成員所給予的社會支持較越晚期使用者高。
另外，本研究亦發現，短期內具有強烈購買意願及已購買PDA的消費者，主觀產品知識及任務價值較高，知覺性能風險則較低。

This research discusses the consumer characteristics, characteristics of new product and environment variables that affect consumers’ adoption willingness of Information Appliance. And discusses the differences among consumer characteristics, characteristics of new product and environment variables of adopter categories. Researcher hopes this research can help firms in marketing affairs and product research and development.
PDA will be the object of this research, and selected interviewers who exceed 20 years old are research targets for questionnaires. The research uses convenience sampling method. For the 230 received questionnaires of 350 issued, there are 194 effective questionnaires. The effective received rate is 55.43%.
This research finds that consumers’ personality traits, product knowledge, perceived risk, self-efficacy and task value are significantly correlated with consumers' adoption willingness. The complexity, compatibility and relative advantage of new product are significantly correlated with consumers' adoption willingness. In regard to environment variables, social support is significantly correlated with consumers' adoption willingness.
This research divides consumers into four groups: early adopters, early majority, late majority, laggards. People who adopt PDA earlier have opened personality, higher product knowledge, lower perceived risk, higher self-efficacy, higher task value and higher risk attitude. They are more easily attracted by the compatibility and relative advantage of new product, not care the complexity of new product, and have higher social support from their social contacts.
This research has also found that consumers who have stronger adoption willingness or have bought PDA have higher product knowledge, higher task value and lower perceived risk.

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