Activity Description

Duration

$($days$)$ Predecessor

A

Design the UI for order placement, order

status, and delivery tracking $5$

B

Document APIs $($application programming

interface$),$ algorithms and overall system $22$ A

C

Implement UI components for placing orders

and receiving ETA. $3$ A

D

Implement UI components for tracking delivery

in real$-$time $5$ A

E

Implement real$-$time notifications for order

updates using WebSockets or similar

technologies $1$ C

F

Develop algorithms to determine the best route

for delivery $3$ D

G Integrate real$-$time traffic data to adjust ETA $5$ F$,$ E

H

Use machine learning to predict more accurate

ETAs based on historical data $2$ G

I

Write and execute unit tests for individual

components $2$ G

J

Test the integration between different

components, including APIs and third$-$party

services $2$ H

K

Conduct testing sessions with stakeholders to

ensure the system meets their requirements $3$ J$,$ I

L

Test the system's performance under different

load conditions to ensure it can handle high

volumes of orders and tracking data $2$ K

M

Deploy the application to a staging

environment for final testing $2$ B$,$ L

N

Deploy the application to the production

environment $1$ M

$3\mathrm{.}1.$ Illustrate the activities on an activity$-$on$-$node $($AoN$)$ diagram

$$ Add start and end nodes.

$$ Adopt the legend system illustrated in Figure $2$