844 TAMPLIN AND MINKLER 1, Literature retrieval. This implies simply that the system will be able to supply a bibliography of the literature pertinent to any particular aspect of the overall problem. To alarge extent this purpose will be fulfilled as a natural consequence of meeting the other two Objectives of the system. However, literature retrieval will be the sole objective for theoretical or conceptual discussions of the various facets of the overall problem, e.g., mathematical models of atmospheric transport of radionuclides. 2, Data retrieval. This necessarily implies literature retrieval, i.e., retrieval of literature that contains data pertinent to some aspect of the problem. The requirement for data retrieval is twofold: for data against which to test predictive or theoretical models and for data to be used to develop critical values or relations that are parts of pre- dictive or theoretical models, 3. Critical-value determination. This is the prime function of the Information Integration Project. The other two are simply means to this end. This function implies both literature and data retrieval. A critical value is meant to imply a value that has been accepted ona critical basis. For example, it could represent the mean and variance for a group of determinations, each of which has been carefully analyzed and accepted, One could consider the overall mission objective tobe the development of a series of equations that trace the fate of radionuclides from the source to the burden in humans. Within this concept the critical values would then represent the combination of the various equations and the coefficients and exponents of the equations. In other words, the object here is to develop and maintain a handbook of critical constants and relations pertinent to all aspects of the mission problem, ranging from the nuclear-explosive source to the radionuclide burden in man. Figure 3 presents a flow chart for the overall project operation. The literature-retrieval aspect of the system is essentially a normal library function. However, one step has been added, namely, a check against the author’s other publications. Its purpose is to prevent multiple entries of identical data into the data file. Multiple entries could occur for two major reasons. First, although reference citations of articles published in journals have become relatively well stan- dardized, the citation of government or company reportsis in a state of chaos. Second, the same data appear frequently in several publications; quite commonly an author’s work appears in both a company report and a journal. Many times the same article has been found in several journals. The data-retrieval aspect, i.e., the mechanism for coding data and concepts, is discussed later. The details of the determination of critical values will be discussed in subsequent reports in connection with specific areas of the problem. The first of these reports will

Select target paragraph3