*3.1. Assembly Evaluation*

The Boothroyd Dewhurst (DFA) method [17] was used as the main approach of evaluating assemblies. Its function is to analyze the manual processing time and installation time for components

that are affected by several parameters which include component size, component weight and component thickness. The evaluation table is shown in Table 1 as follows.


**Table 1.** DFA evaluation table.

The implementation procedure includes:

