Lifecycle simplification

[zolkis]

We should justify why do we have 3 lifecycles (system, device, data), and in addition we need to discuss application lifecycle.
Then, what is the relationship between them.
If there is value in factoring out 3 lifecycles, we should clearly express that value.
I would consider talking about lifecycle in general from use cases point of view, then talk about its system, device, data and application aspects.

[mlagally]

Arch call on 10.12:
Do you suggest to eliminate sections or to better explain what we heave been talking about?

[zolkis]

Listing use cases for all the 3 kinds of lifecycle would help making more clear what they were meant for.

[mlagally]

Arch call on 17.12.:
Use case(s) should be defined in the Use Cases TF