Metrics that are collected by utilizing different methods are the key factors in understanding what is happening under the hood. Currently, the field of digital archiving relies heavily on SLAs (Service Level Agreement) and technical level metrics. While technical metrics are superior in collecting the hard evidence behind any operational unit, it doesn't take account any of the metrics that are relevant when considering the softer side of any technological device, service or software. From the authors' opinion, technical metrics describe merely 1/5 of the whole truth. User and context related metrics aren't utilized and still these have been recognized to be the keys to success in many other fields, in fact these softer metrics are sometimes recognized as a KPIs (Key Performance Indicators). This paper proposes the utilization of the well-known methodologies also in the field of digital archiving in order to gain a good overlook of what is happening behind the scenes.
Anssi Jääskeläinen, "Realizing the potentiality of metrics in digital preservation" in Proc. IS&T Archiving 2015, 2015, pp 66 - 69, https://doi.org/10.2352/issn.2168-3204.2015.12.1.art00017