Аннотация:This manuscript is dedicated to the development of the system to manage metainformation of ATLAS
experiment. The main purpose of the system is to provide scientists with transparent access to the actual and
historical metadata related to data analysis, processing and modeling. The system design addresses the
following goals: providing a flexible and fast search for metadata on various combinations of keywords,
generating aggregated reports, categorized according to selected parameters, such as the studied physical
process, scientific topic, physical group, etc. The article presents the architecture of the developed indexing and
search system, as well as the results of performance tests. The comparison of the query execution speed within
the developed system and in case of querying the original relational databases showed that the developed
system provides results faster. Also the new system allows much more complex search requests than the
original storages.