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Data Communication
Published in Sunit Kumar Sen, Fieldbus and Networking in Process Automation, 2017
Digital data is converted into digital signal by means of a process called line coding. Digital data or data element is the smallest entity that represents a piece of information. It is represented by bit. Data rate is the number of data elements that can be sent in a second. The unit is bits per second or bps. It could be kbps (kilo bits per second) or Mbps (mega bits per second).
Data Communication
Published in Sunit Kumar Sen, Fieldbus and Networking in Process Automation, 2014
Data is converted into digital signal by means of a process called line coding. Data or data element is the smallest entity that represents a piece of information. It is represented by bit. Data rate is the number of data elements that can be sent in a second. The unit is bits per second or bps. It could be kbps (kilo bits per second) or Mbps (mega bits per second).
Aeronautical Data
Published in Leanna Rierson, Developing Safety-Critical Software, 2017
Validation—The activity whereby a data element is checked as having a value that is fully applicable to the identity given to the data element, or a set of data elements that is checked as being acceptable for their purpose.
Enabling flexible task compositions, orders and granularities for knowledge-intensive business processes
Published in Enterprise Information Systems, 2019
Imane Sid, Manfred Reichert, Abdessamed Réda Ghomari
Process data elements represent the basic concept the data-centric specification of a KIP relies on. Amongst others, process data elements need to be effectively handled during KIP enactment. In our approach, this is accomplished by dynamically aggregating several data elements in a data object. For this purpose, data elements are mapped to attributes of the respective data object. Definition 7 (Data Object). Let be the total set of data elements read or written in the context of a KIP Pr. Then: A data object of Pr is defined by a tuple (ObjType, ObjAtt), where:ObjType denotes the type of the data object,ObjAtt = {,…,} corresponds to the set of attributes of ObjType. (In turn, these attributes represent a subset of the process data elements of Pr, i.e. ObjAtt).Example 2. Consider a KIP Pr =, with = {, , , } being the set of process data elements read or written by any of the two tasks or . Figure 3 illustrates how the process data elements are mapped to attributes of the two data objects Object1 and Object2.