Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Second generation activity system (Engeström et al. 1999). The subject tries to change something (object) in order to achieve a goal (outcome). This is mediated by tools (artefacts), the rules that apply in that activity, the community that is involved in the activity and the division of labour between members of the community
