Getting Things Done - GTD
Reach Balance through Your Areas of Responsibility
The GTD capturing phase has normally got a reactive nature. This means that you will be doing some work, going for a walk, or in the cinema, and suddenly, you see something, someone tells you something, you remember something or an idea comes to your mind. So you capture it to avoid the stress of having it at the back of your mind all the time or making you feel worried you might forget it.