Scheduling Projects with Multiskill Learning Effect

Table 1

Activities of example project.

Activity; no.	Successors	Normal duration; (day)	Skill requirement
			𝐬1	𝐬2	𝐬3	𝐬4
1	2, 3, 4	0	0	0	0	0
2	11	22	0	2	0	2
3	5, 6, 7	25	2	0	0	3
4	9, 10, 11	9	1	0	3	0
5	8	19	0	1	4	0
6	9, 10	13	0	4	0	3
7	9	28	0	1	0	2
8	10	3	0	3	4	0
9	12	19	2	0	0	3
10	12	13	0	4	0	2
11	12	25	0	4	0	1
12	—	0	0	0	0	0