Criticality criterion refers to the demands that fog/cloud express with regard to data of things. This may combine both data integrity and availability. Low demands could lead to ignoring certain data, while high demands could lead to high traffic and network congestion. Therefore, selecting appropriate data recipient is crucial.
Variety criterion refers to the different types of data being generated, for example, personal data can be anything like texts, emails, photos, videos, sensor-data etc., hence, such types of data can be split in three categories: structured, semi-structured and unstructured data. Structured data has a fixed format and size, semi-structured data has a structure but does not obey the formal structure of data models (e.g., relational databases), while the unstructured data does not have any format and poses challenges for processing and analysing activities. Therefore, according to data needs and requirements, the recipient can be identified; either fog, cloud, or fog-cloud.
Do'stlaringiz bilan baham: |
