This programming exercise will use Enterprise Architect to define an interaction diagram. You will need to use steps from HOS$01,$ HOS$02,$ and HOS$04$ to complete the diagram.

The scenario is as follows:

You are designing a system to manage a system to handle a parking lot barrier.

The barrier is used to allow$/$prevent cars from entering the parking lot based on whether they have a keycard or not.

Define an activity diagram that includes the following:

$1-$ A Customer $($the one parking$)$ You can add this as an Actor as shown in HOS$02$

$2-$ The following blocks $-$ You can add this using the steps in HOS$01$

a$.$ A Screen $(<>)$

b$.$ A Barrier $(<>)$

c$.$ A Sensor $(<>)$

$3-$ The following messages:

a$.$ Visitor presses a button on the screen $($ButtonPressed$())$

Submit a print screen of your diagram. The diagram should contain the following elements:

$1$ actor

$3$ blocks

$1$ message