1 Scope
This International Standard is applicable to all types of libraries in all countries. However, not all performance indicators apply to all libraries . Limitations on the applicability of individual performance indicators are listed in the scope clause of the description of each indicator (see Annex B).
Performance
indicators can be used for comparison over time within the same library . Comparisons between libraries can also be made, but only with caution. Comparisons between libraries will need to take into account any differences in the constituencies of the libraries and library attributes, with a good understanding of the indicators used, limitations to comparisons, and careful interpretation of the data.
There are other limitations to the performance indicators in this International Standard that depend on local factors, such as the community the library serves, service mandates, and technology infrastructure configuration. Results from the use of performance indicators in this International Standard are intended to be interpreted with regard to these factors.
Performance
indicators are not specified for all services, activities, and uses of the resources of the