How to construct a work breakdown structure (WBS) for the projectto develop a wearable health-monitoring watch with the following 7 main deliverables:

1) measuring sugar

2) pressure

3) Temperature

4) oxygen percentage

5) breathing rate.

Additionally, the watch should include a:

6) Wireless connectivity feature to transfer the information

and have a

7) secure protocol.

Follow-up question: The WBS must include the following as well:

* Each of the main deliverables must have at least 2 realistic and reasonable sub-deliverables (level-2)

* Each sub-deliverable must include at least 2 realistic and reasonable sub-sub-deliverables (level-3)

* Each sub-sub-deliverables must include at least 1 realistic and reasonable work-packages.

So the WBS must be presented in a hierarchy format. Total of 4 levels Can you give me examples for measuring sugar and wireless connectivity?