Productivity is considered to be a most essential factor of economic growth. Its increase leads to quality improvement of goods and services delivered on the market; it raises production effectiveness and enhances competitiveness. The concept of productivity is essentially bound with the systemic approach in the research of economic phenomena and of enterprises. The essence offeeding, transformation and output constitutes the basis for analysing the transformation of available resources into products and estimating the effectiveness of this process. Both productivity research and systemic analysis itself are complex subjects depending on the specificity of the enterprise, the scope of analysis or the purposefulness of research. The systemic approach assumes particular significance now, at the time of transformation towards information society (society of knowledge), where information is starting to play the role of the predominating resource. The present study focuses on problems of system identification and specificity of its functioning in the context ofproductivity research.
