Constraints vs Bottleneck - What's the difference?

As nouns the difference between constraints and bottleneck

is that constraints is while bottleneck is the narrow portion that forms the pouring spout of a bottle; the neck of a bottle.

to slow by causing a bottleneck.

(head)

(wikipedia bottleneck)

(en noun)

The narrow portion that forms the pouring spout of a bottle; the neck of a bottle.

In traffic, any narrowing of the road, especially resulting in a delay.

Any delay; part of a process that is too slow or cumbersome.

It is easy to create entries; processing the paperwork is the bottleneck .

The bottleneck in this computer program is the inefficient sorting process; we should replace it with a faster one.

(en verb)

To slow by causing a bottleneck.

The merge bottlenecked the traffic every morning.

To form a bottleneck.

The traffic bottlenecked at the merge every morning.