who is responsible if the component fails?

If one person has written a component but others have revised it, who is responsible if the component fails? What are the legal and ethical implications of reusing someone else’s component?

Some scenarios these days are copying others work with or without the authors’ knowhow. But sometimes it leads to failure of a component for the fact that incorrect revision takes place. First issue of incorrect revising is not getting the real idea of the original author. But who’s to be blame when such things happen? Is it in the side of the original author or the one who revised it? Sometimes we revised work in order for us to correct, update and improve the original text but usually we lack analysis and better perception of the point of the original component.

When we revised someone else’s component, we come to different conclusions and update previous estimate in order to make it more accurate or even realistic. But the fact that nothing ends up perfectly makes me apprehend that both of the two (less from the original author and more from the one who revised) are legally responsible for whatever failures occur. Considering the time when the component hasn’t revised yet, we don’t know if it is correctly written and can lead to more errors when revision takes place.

But unauthorized revising of someone else’s component has legal and ethical implications. They say that when a things has been done and done well, take it and copy it without hesitation. As people in a new generation we prefer to believe that improving someone’s work is much easier to do than doing it from scratch. However, revision of others component without the absence of making it perfectly done guarantees the originality of a thought.