Embedded systems Flashcards
Mention the characteristic of Embedded systems?
- Dependability
- Reactivity
- Efficiency
- Real-time ability
- Safety
- Security (Data)
What is the difference between Embedded systems and Information systems?
The focus, while the IS is focus on data, while the ES is focus on the connection (is extremely related to hardware and thus safety [lives])
What is a Embedded system?
Is a system in a system
What is the norm that sets the definitions for the characteristics of an ES?
ISO/IEC/IEEE24765
What is Safety?
Expectation that a system does not, under defined conditions, lead to a state in which human life, health,
property, or the environment is endangered life related
What is security?
protection against intentional subversion or forced failure, containing a composite of four attributes:
confidentiality, integrity, availability and accountability, plus aspects of a fifth, usability, all of which
have the related issue of their assurance Data & money related
In what it consist the Dependability?
- Availability (what we need is operational and available)
- Reliability (it works in the conditions and time we want or need)
- Maintainability (the easy which not only maintain but also update)
In what it consist the Real-time?
pertaining to a system or mode of operation in which computation is performed
during the actual time that an external process occurs, in order that the
computation results can be used to control, monitor, or respond in a timely
manner to the external process
In what it consist the Reactivity?
-Stimulus and Response
- Input-driven system
In what it consist the Efficiency?
degree to which a system or component performs its designated functions with minimum consumption of
resources
In what consist the MAPE-loop?
-Monitor (what can and want to monitor?)
- Analyze (do we have a deviation?)
- Plan (How do we get what we want?)
- Execute (Remember to inform the other related systems about the change)
What is Co-design?
we need to make Hardware and Software solutions, we need to work together
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