This study examines the Online Computer Library Center's (OCLC's) CJK350 system with which one is able to input and retrieve Chinese, Japanese, and Korean bibliographic records containing both alphabetical and vernacular characters. In order to study the effectiveness of the system from the Chinese language users' point of view, a field test was conducted to collect information. Each subject was given five unique citations in Chinese scripts and asked to conduct a search in both the roman mode and CJK mode with three types of search keys: title; author or corporate author; and author and title. Their search processes and results were recorded on a search sheet. Information collected by this field test was used to evaluate the OCLC CJK Chinese part from the following aspects: whether or not the designed input methods, character subsets, and homophone qualifiers enable the various Chinese language users to have access to the OCLC Online Chinese Catalog; whether or not searches on CJK mode could be as successful as those on roman mode; and what the sample users' general perception of the OCLC CJK system are. The search sheet is included in the appendix. (Contains 12 references.) (JLB)