The Effect of User Involvement on System Success: A Contingency Approach Peter Tait and Iris Vessey 1. Why was the particular research underlying the published report conducted? Research in the article was done in order to understand the reasons for existence of differences in the completeness of logical data specifications generated by various systems analysts pursuing/following two different methodologies. The methodologies studied by the author were: Data Flow and Data Structure 2. What is the specific research problem? The author has tried to highlight the fact that in the system development life cycle, where process modeling is the area of operation of application analysts and that data modeling is of database designers, the division of labor in this format is not the right approach to be followed. Instead according to the author analysts must master both structural and functional aspects of the system to be developed. Also the issue of inclusion of data structure modeling in the curriculum of the MIS studies had been raised in the study. 3. What is the theoretical foundation? What new theory does the article develop? What about the logical consistency and adequacy of the new theory/thesis? Assertions made in the article must be critically examined. The author has based his study on theory that both the data flow and data structure approach can be used to model object system, however each approach views the object system differently. Data flow model views the object system as a set of processes transforming information flows, whereas the data structure approach views it as a set of interrelated entities. Author has tried to show that the data flow approach is not able to provide a complete data specification for the object system as compared to the Data structure approach. 4. What are the hypotheses? Are they derived from the theory offered, or formulated out of the air? Author has proposed four hypothesis which are as following: a) There is no difference in the number of entity views in the two approaches b) There is no difference in the number of attributes identified by each approach c) The ratio of number of entity views over number of attributes is same with two approaches and d) The ratio of number of attributes over number of data record fields is same in either approach. All these are derived from the theory developed by the author. 5. What are the qualitative characteristics of the research design utilized? The author has used the data obtained from test conducted under a level field without having any biases for any of the approaches. Even though the sample of analyst was not very large but still the result obtained were quite significant. Having more case studies like the one followed by the authors could have further enhanced the results.