Deprecated: Function set_magic_quotes_runtime() is deprecated in /home/projectm/public_html/qa-include/qa-base.php on line 42

Deprecated: mysql_connect(): The mysql extension is deprecated and will be removed in the future: use mysqli or PDO instead in /home/projectm/public_html/qa-include/qa-db.php on line 42

Warning: session_start(): Cannot send session cookie - headers already sent by (output started at /home/projectm/public_html/qa-include/qa-base.php:42) in /home/projectm/public_html/qa-include/qa-app-users.php on line 216

Warning: session_start(): Cannot send session cache limiter - headers already sent (output started at /home/projectm/public_html/qa-include/qa-base.php:42) in /home/projectm/public_html/qa-include/qa-app-users.php on line 216

Warning: Cannot modify header information - headers already sent by (output started at /home/projectm/public_html/qa-include/qa-base.php:42) in /home/projectm/public_html/qa-include/qa-index.php on line 475
What is the difference between activity on node and activity on arrow? - Project Management Questions
Welcome to Project Management Questions!

You can ask any question on Project Management and you can rest assured that real Project Managers will answer your shortly!

What is the difference between activity on node and activity on arrow?

0
votes
In project scheduling, how is an activity on node different from an activity on arrow? Please explain all the differences between the two.
asked 6 years ago by anonymous

1 Answer

0
votes
Activity-on-Node and Activity-on-Arrow diagrams are two different ways of showing a project schedule network.

With Activity-on-Arrow or AOA schedule diagrams, the activity occurs along the arrow.  As a result, you are constrained to showing only finish-to-start relationships.  As a result, dummy nodes had to be added in order to show more complex relationships.

If you place the activities on the nodes as with Activity-on-Node (AON) diagrams, now the arrows can go in any direction and you can represent the full range of dependencies: start-to-finish, finish-to-start, start-to-start, and finish-to-finish.

In general, because of the serious constraint, Activity-on-Arrow diagrams are now rarely used.
answered 6 years ago by sdcapmp (45,840 points)

Related questions

0
votes
0
answers
asked 5 years ago by anonymous
0
votes
2
answers
0
votes
0
answers
0
votes
0
answers
© 2010 - 2012 Project Management Questions - All Rights Reserved