Update 12-eln.md

docs/_Research-Data-Management/12-eln.md

@@ -13,7 +13,10 @@ An Electronic Lab Notebook (ELN) is a software meant for documenting experiments
 As well as documenting your experiments, resulting research data and processes, a physical lab notebook is also intended to communicate your work (e.g. why experiments were initiated?). It also serves as a legal document to prove patents and defend your data against accusations of misconduct. Finally, it is your scientific legacy in the laboratory {% cite n4m_wc_elns_2023 %}.
 
 ## Additional uses of ELNs
-ELNs offer features and functions that can pave the way for significant time savings and knowledge transfer in daily laboratory work. For example, ELNs support the annotation of raw data (e.g. with tags or metadata {% cite rathmann_2021 vandendorpe_nd %} without having to switch between different media formats. Annotating data makes it searchable, discoverable, traceable and reusable {% cite vandendorpe_nd %}. ELNs also bring data and their description closer together through embedded multimedia files (e.g. videos of experimental setups), links to shared resources (e.g. chemical databases or analysis software), links to other experiments, and direct links to (raw) data sets and analysis workflows {% cite rehwald_2022 %}. ELNs also allow for the versioning of experiment descriptions  {% cite rehwald_2022 %} and the structuring and visualisation of workflows and processes {% cite rathmann_2021 %}. ELNs also have the ability to manage inventories of samples, reagents and other supplies, and track equipment and equipment maintenance schedules {% cite lma_rdmwg %}. ELNs also provide for collaboration {% cite lma_rdmwg %} through a common medium  {% cite rehwald_2022 %}. Last but not least, ELNs provide for auditing {% cite lma_rdmwg %}, security and safety. Indeed, ELNs are fireproof, waterproof and cannot be lost, misplaced or stolen. ELNs can also be automatically backed up. They allow timestamping (RFC 3161 using DFN-PKI) and finalisation to prevent further changes  {% cite rehwald_2022 %}. They also support electronic signatures {% cite cozatl_2021 %} and require access management  {% cite rehwald_2022 %}.
+ELNs offer features and functions that can pave the way for significant time savings and knowledge transfer in daily laboratory work. For example, ELNs support the annotation of raw data (e.g. with tags or metadata {% cite rathmann_2021 vandendorpe_nd %} without having to switch between different media formats. Annotating data makes it searchable, discoverable, traceable and reusable {% cite vandendorpe_nd %}. ELNs also bring data and their description closer together through embedded multimedia files (e.g. videos of experimental setups), links to shared resources (e.g. chemical databases or analysis software), links to other experiments, and direct links to (raw) data sets and analysis workflows {% cite rehwald_2022 %}. ELNs also allow for the versioning of experiment descriptions  {% cite rehwald_2022 %} and the structuring and visualisation of workflows and processes {% cite rathmann_2021 %}. ELNs also have the ability to manage inventories of samples, reagents and other supplies, and track equipment and equipment maintenance schedules {% cite lma_rdmwg %}. ELNs also provide for collaboration {% cite lma_rdmwg %} through a common medium  {% cite rehwald_2022 %}. Last but not least, ELNs provide for auditing {% cite lma_rdmwg %}, security and safety. Indeed, ELNs are fireproof, waterproof and cannot be lost, misplaced or stolen. ELNs can also be automatically backed up. They allow timestamping (RFC 3161 using DFN-PKI) and finalisation to prevent further changes  {% cite rehwald_2022 %}. They also support electronic signatures {% cite cozatl_2021 %} and require access management {% cite rehwald_2022 %}.
+
+## What ELNs should not be used for
+ELNs are not data publishing platforms and are not suitable for storing large files. Large files require special technology for secure storage (e.g. Object Store, Nextcloud), but can still be linked in the ELN {% cite rehwald_2022 %}.
 
 # Further resources
 * [ELN Finder - Demo](https://eln-finder.ulb.tu-darmstadt.de/home) -  Tool to help researchers searching and selecting a suitable ELN thanks to more than 40 filter criteria.