To face the rapid evolution of the clinical laboratory activity from sample analysis towards an in-vitro diagnostic network, a Total Quality Management system must be implemented by laboratory professionals. Technological advances make it possible to introduce new tools and techniques for many issues surrounding the analytical process, as has happened for analysis automation and laboratory management. Preanalytical steps should benefit from extended traceability, using new identification devices such as electronic labels. This may promote the improvement of sample handling in this phase, such as during transportation or centrifugation. Another field is the expansion of metrology. Many factors can now easily be controlled in the clinical laboratory. New reliable automated systems are available to evaluate the performance of pipetting devices. Autonomous miniaturized recorders and probes connected to monitoring softwares allow traceable temperature monitoring. In this paper, some examples are presented to illustrate how technical solutions can support the implementation of Quality Assurance in the clinical laboratory. (C) 1998 Elsevier Science B.V. All rights reserved.