demands . On the OT side we have some area of strictly digital implementation , called Digital OT ; and finally , Physical OT with the risk of physical damage , injury and death , shown as IT / OT Landscape in Figure 3-2 . Table 3-1 shows significant differences between the three areas of industry IoT . Many implementation details , opportunities and challenges in Operational IT and Digital OT are identical or very similar , helping to reduce the gap between OT and IT .
Figure 3-2 : IT / OT landscape .
Context |
Traditional IT |
Operational IT |
Digital OT |
Physical OT |
Real-time behavior |
human-based |
system-based |
system-based |
physical-based |
Data complexity high high high low
Reliability medium high high very high Safety none none medium very high Security very high very high very high high Resilience very low medium medium high Privacy very high very high high medium Table 3-1 : Comparison of traditional IT , operational IT , digital OT and physical OT .
Merging digital and physical operations is a new type of convergence , which is better understood within the context of trustworthiness , see Figure 3-3 .
6 July 2022