As I understand it, they point out that Levy-Strauss discovered two kinds of approach to solve problems, engineering and bricolage. The former is careful planning and solving the task by building an exact tool that resolves the problem, the latter is putting together whatever you have available in an approximate solution and moving on.

In software, we would probably call them "software engineering" and "hacking" approaches. For example, in the Linux Kernel init discussion, systemd is an engineering solution, while traditional init system is a bricolage solution.