This book is the result of the fourth International Symposium on Data
Analysis held on June 1985 at the Universite Libre de Bruxelles with the
help'of the European Institute for Advanced Management. As the preceding
ones, the organization of the Symposium started with a call for real
life problems from which an International Com- mittee selected six
topics and asked for several solutions. These topics are: I)
Multivariate and longitudinal data on growing children 2) Prehistoric
assemblages and lithic artifacts from a small We- european area 3) A
comparison of results of European elections 4) Classification of
heterogeneous data related to microcomputers 5) Group technology in
production management 6) Juvenile gelinquency They are covered by the
S1X chapters of this book in the following systematic way: a) firstly, a
presentation of the problem is given in the original context of the
relevant discipline (Medicine, archaelogy, politics, marketing,
production and education); b) Secondly, we present the solution found by
people who presents the problem; c) thirdly, we find the other retained
solutions among the most significative ones; v vi PREFACE d) finally, a
short conclusion compares the different approaches. The diversity of the
six selected problems clearly shows that Data Analysis can be used for
solving a wide variety of problems. Moreover, the fact that each problem
is approached by several dif- ferent way - at least two - also shows
that, in general, a "univer- sal" statistical method does not exist.