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Chase Manhattan
Linear Programming
EryRegina
Rai Diana
Chase Manhattan Bank
Linear Programming
Beberapa faktor yang mempengaruhi penugasan kerja sbb :
1. Sesuai dengan peraturan perusahaan, jam kerja part time dibatasi
maksimal 40% dari total hari yang disyaratkan.
2. Pekerja full-time bekerja 8 jam (termasuk 1 jam makan siang).
Total waktu produktif pekerja Full-time sebanyak 35 jam selama
seminggu.
3. Pekerja part-time bekerja minimal 4 jam sehari tetapi kurang dari
8 jam dan tidak ada waktu istirahat siang.
4. 50% pekerja full-time pergi makan siang jam 11-12 dan sisanya jam
12-13.
5. Jam kerja dimulai dari pukul 09.00 dan berakhir 19.00 (OT dibatasi
2 jam sehari). Setiap pekerjaan yang melebihi jam 19.00 akan
dilanjutkan keesokan hari
6. Pekerja full-time tidak diperkenankan OT lebih dari 5 jam dlm
seminggu. Lebih dari itu tidak dibayar.
Chase Manhattan Bank
Linear Programming
Biaya yang terkait dengan pekerja yang bersangkutan:
1. Biaya rata2 pekerja full-time per jam $10.11 (termasuk
tunjangan)
2. Biaya rata2 OT pekerja full-time per jam $8.08 (diluar
tunjangan)
3. Biaya rata2 pekerja part-time per jam $7.82
Chase Manhattan Bank
Kode Penjelasan Waktu
F0 Full Time Teller, Tidak Over Time 9 AM - 5 PM
F1 Full Time Teller, Over Time 1 Jam 9 AM - 6 PM
F2 Full Time Teller, Over Time 2 Jam 9 AM - 7 PM
P1 Part Time 4 jam 9 AM - 1 PM
P2 Part Time 5 jam 9 AM - 2 PM
P3 Part Time 6 jam 9 AM - 3 PM
P4 Part Time 7 jam 9AM - 4 PM
P5 Part Time 4 jam 10 AM - 2 PM
P6 Part Time 5 jam 10 AM - 3 PM
P7 Part Time 6 jam 10 AM - 4 PM
P8 Part Time 7 jam 10 AM -5 PM
P9 Part Time 4 jam 11 AM - 3 PM
P10 Part Time 5 jam 11 AM - 4 PM
P11 Part Time 6 jam 11 AM - 5 PM
P12 Part Time 7 jam 11 AM - 6 PM
P13 Part Time 4 jam 12 - 4 PM
P14 Part Time 5 jam 12 - 5 PM
P15 Part Time 6 jam 12 - 6 PM
P16 Part Time 7 jam 12 - 7 PM
P17 Part Time 4 jam 1 PM - 5 PM
P18 Part Time 5 jam 1 PM - 6 PM
P19 Part Time 6 jam 1 PM - 7 PM
P20 Part Time 4 jam 2 PM - 6 PM
P21 Part Time 5 jam 2 PM - 7 PM
P22 Part Time 4 jam 3 PM - 7 PM
Minimum objective = [(F0)(8)($10.11)]
+[(F1)(8)($10.11)+(1)($8.08)]
+[(F2)(8)($10.11)+(2)($8.08)]
+[($7.82)(4)(P1+P5+P9+P13+P17+P20+P22)]
+[($7.82)(5)(P2+P6+P10+P14+P18+P21)]
+[($7.82)(6)(P3+P7+P11+P15+P19)]
+[($7.82)(7)(P4+P8+P12+P16)]
Chase Manhattan Bank
9-10 am (F0+F1+F2)+P1+P2+P3+P4 ≥ 14
10-11 am (F0+F1+F2)+P1+P2+P3+P4+P5+P6+P7+P8 ≥ 25 P5,P6,P7, P8 (IN)
11-12 pm 0.5(F0+F1+F2)+P1+P2+P3+P4+P5+P6+P7+P8+P9+P10+P11+P12 ≥ 26 P9, P10, P11, P12 (IN)
12-1 pm 0.5(F0+F1+F2)+P1+P2+P3+P4+P5+P6+P7+P8+P9+P10+P11+P12+P13+P14+P15+P16 ≥ 38 P13, P14, P15, P16 (IN)
1-2 pm (F0+F1+F2)+P2+P3+P4+P5+P6+P7+P8+P9+P10+P11+P12+P13+P14+P15+P16+P17+P18+P19 ≥ 55 P17, P18, P19 (IN) P1 (OUT)
2-3 pm (F0+F1+F2)+P3+P4+P6+P7+P8+P9+P10+P11+P12+P13+P14+P15+P16+P17+P18+P19+P20+P21 ≥ 60 P20,P21 (IN) P2,P5 (OUT)
3-4 pm (F0+F1+F2)+P4+P7+P8+P10+P11+P12+P13+P14+P15+P16+P17+P18+P19+P20+P21+P22 ≥ 51 P22 (IN) P3,P6,P9 (OUT)
4-5 pm (F0+F1+F2)+P8+P11+P12+P14+P15+P16+P17+P18+P19+P20+P21+P22 ≥ 29 P4, P7, P10, P13 (OUT)
5-6 pm (F1+F2)+P12+P15+P16+P18+P19+P20+P21+P22 ≥ 14 F0, P8, P11, P14, P17 (OUT)
6-7 pm (F2)+P16+19+P21+P22 ≥ 9 F1,P12, P15, P18, P20 (OUT)
Waktu Kerja Penjelasan Jumlah Personel
yang dibutuhkan
Informasi Tambahan
Solving the problem using Excel
for QM
 Pertama Buka Excel for QM
 Click Excel QM lalu Alphabetical
 Isi heading dan variable dari objective function
 Isi cells dimana nilai dari variable tersebut, dari hasilini
maka akan menghasilkan solusi.
Solving the problem using Excel
for QM
 Isi RHS berdasarkan data kebutuhan personnel
Spreadsheet telah siap untuk dijalankan solver
 Click Data, lalu di pojok kanan atas Solver.
Untuk memunculkan tombol Solve, pilih File, Option, Add-ins,
Go, Solver Add-ins
 Posisikan solver parameters di tampilan spreadsheet.
Excell for QM
Discussion Question
1. What is the minimum-cost schedule for the bank ?
Dengan menggunakan Excel QM, kita mendapatkan biaya minimum
jadwal kerja di bank Chase sebesar $3,460.89
2. What are the limitations of the model used to answer question 1?
 Limitasi dari model diatas adalah menggunakan data harian tanpa
memandang hari – hari sibuk. Misalkan pada hari Jumat lebih ramai
dari pada hari lain, pada hari raya, gajian, dll.
 Limitasi lain dari model diatas bahwa tidak diperhitungkannya
produktivitas/pengalaman dari pekerja Full time dan pekerja Part
Time.
3. Costs might be reduced by relaxing the constraint that no more
than 40% of the day’s requirement be met by part-timers. Would
changing the 40% to a higher value significantly reduce costs?
Tentunya. Sejalan dengan pemikiran yang logis, jika kita
mempekerjakan pekerja part-time maka kita akan mengurangi biaya.
Hasil pengurangan dari perhitungan berdasarkan Excel QM akan
ditampilkan di slide selanjutnya.
Chase Manhattan
change the limitation to 60% requirements
Apabila kita merubah pembatasan pekerja part-time menjadi 60% dari total
kebutuhan, maka biaya minimumnya menjadi $2,966.24
Chase Manhattan
change the limitation to 80% requirements
Apabila kita mengganti pembatasan pekerja part-time menjadi 80% dari total
kebutuhan, maka biaya minimum cost menjadi $2,700.39

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Chase manhattan Linear Programming

  • 2. Chase Manhattan Bank Linear Programming Beberapa faktor yang mempengaruhi penugasan kerja sbb : 1. Sesuai dengan peraturan perusahaan, jam kerja part time dibatasi maksimal 40% dari total hari yang disyaratkan. 2. Pekerja full-time bekerja 8 jam (termasuk 1 jam makan siang). Total waktu produktif pekerja Full-time sebanyak 35 jam selama seminggu. 3. Pekerja part-time bekerja minimal 4 jam sehari tetapi kurang dari 8 jam dan tidak ada waktu istirahat siang. 4. 50% pekerja full-time pergi makan siang jam 11-12 dan sisanya jam 12-13. 5. Jam kerja dimulai dari pukul 09.00 dan berakhir 19.00 (OT dibatasi 2 jam sehari). Setiap pekerjaan yang melebihi jam 19.00 akan dilanjutkan keesokan hari 6. Pekerja full-time tidak diperkenankan OT lebih dari 5 jam dlm seminggu. Lebih dari itu tidak dibayar.
  • 3. Chase Manhattan Bank Linear Programming Biaya yang terkait dengan pekerja yang bersangkutan: 1. Biaya rata2 pekerja full-time per jam $10.11 (termasuk tunjangan) 2. Biaya rata2 OT pekerja full-time per jam $8.08 (diluar tunjangan) 3. Biaya rata2 pekerja part-time per jam $7.82
  • 4.
  • 5. Chase Manhattan Bank Kode Penjelasan Waktu F0 Full Time Teller, Tidak Over Time 9 AM - 5 PM F1 Full Time Teller, Over Time 1 Jam 9 AM - 6 PM F2 Full Time Teller, Over Time 2 Jam 9 AM - 7 PM P1 Part Time 4 jam 9 AM - 1 PM P2 Part Time 5 jam 9 AM - 2 PM P3 Part Time 6 jam 9 AM - 3 PM P4 Part Time 7 jam 9AM - 4 PM P5 Part Time 4 jam 10 AM - 2 PM P6 Part Time 5 jam 10 AM - 3 PM P7 Part Time 6 jam 10 AM - 4 PM P8 Part Time 7 jam 10 AM -5 PM P9 Part Time 4 jam 11 AM - 3 PM P10 Part Time 5 jam 11 AM - 4 PM P11 Part Time 6 jam 11 AM - 5 PM P12 Part Time 7 jam 11 AM - 6 PM P13 Part Time 4 jam 12 - 4 PM P14 Part Time 5 jam 12 - 5 PM P15 Part Time 6 jam 12 - 6 PM P16 Part Time 7 jam 12 - 7 PM P17 Part Time 4 jam 1 PM - 5 PM P18 Part Time 5 jam 1 PM - 6 PM P19 Part Time 6 jam 1 PM - 7 PM P20 Part Time 4 jam 2 PM - 6 PM P21 Part Time 5 jam 2 PM - 7 PM P22 Part Time 4 jam 3 PM - 7 PM
  • 6. Minimum objective = [(F0)(8)($10.11)] +[(F1)(8)($10.11)+(1)($8.08)] +[(F2)(8)($10.11)+(2)($8.08)] +[($7.82)(4)(P1+P5+P9+P13+P17+P20+P22)] +[($7.82)(5)(P2+P6+P10+P14+P18+P21)] +[($7.82)(6)(P3+P7+P11+P15+P19)] +[($7.82)(7)(P4+P8+P12+P16)] Chase Manhattan Bank 9-10 am (F0+F1+F2)+P1+P2+P3+P4 ≥ 14 10-11 am (F0+F1+F2)+P1+P2+P3+P4+P5+P6+P7+P8 ≥ 25 P5,P6,P7, P8 (IN) 11-12 pm 0.5(F0+F1+F2)+P1+P2+P3+P4+P5+P6+P7+P8+P9+P10+P11+P12 ≥ 26 P9, P10, P11, P12 (IN) 12-1 pm 0.5(F0+F1+F2)+P1+P2+P3+P4+P5+P6+P7+P8+P9+P10+P11+P12+P13+P14+P15+P16 ≥ 38 P13, P14, P15, P16 (IN) 1-2 pm (F0+F1+F2)+P2+P3+P4+P5+P6+P7+P8+P9+P10+P11+P12+P13+P14+P15+P16+P17+P18+P19 ≥ 55 P17, P18, P19 (IN) P1 (OUT) 2-3 pm (F0+F1+F2)+P3+P4+P6+P7+P8+P9+P10+P11+P12+P13+P14+P15+P16+P17+P18+P19+P20+P21 ≥ 60 P20,P21 (IN) P2,P5 (OUT) 3-4 pm (F0+F1+F2)+P4+P7+P8+P10+P11+P12+P13+P14+P15+P16+P17+P18+P19+P20+P21+P22 ≥ 51 P22 (IN) P3,P6,P9 (OUT) 4-5 pm (F0+F1+F2)+P8+P11+P12+P14+P15+P16+P17+P18+P19+P20+P21+P22 ≥ 29 P4, P7, P10, P13 (OUT) 5-6 pm (F1+F2)+P12+P15+P16+P18+P19+P20+P21+P22 ≥ 14 F0, P8, P11, P14, P17 (OUT) 6-7 pm (F2)+P16+19+P21+P22 ≥ 9 F1,P12, P15, P18, P20 (OUT) Waktu Kerja Penjelasan Jumlah Personel yang dibutuhkan Informasi Tambahan
  • 7. Solving the problem using Excel for QM  Pertama Buka Excel for QM  Click Excel QM lalu Alphabetical  Isi heading dan variable dari objective function  Isi cells dimana nilai dari variable tersebut, dari hasilini maka akan menghasilkan solusi.
  • 8. Solving the problem using Excel for QM  Isi RHS berdasarkan data kebutuhan personnel Spreadsheet telah siap untuk dijalankan solver  Click Data, lalu di pojok kanan atas Solver. Untuk memunculkan tombol Solve, pilih File, Option, Add-ins, Go, Solver Add-ins  Posisikan solver parameters di tampilan spreadsheet.
  • 10. Discussion Question 1. What is the minimum-cost schedule for the bank ? Dengan menggunakan Excel QM, kita mendapatkan biaya minimum jadwal kerja di bank Chase sebesar $3,460.89 2. What are the limitations of the model used to answer question 1?  Limitasi dari model diatas adalah menggunakan data harian tanpa memandang hari – hari sibuk. Misalkan pada hari Jumat lebih ramai dari pada hari lain, pada hari raya, gajian, dll.  Limitasi lain dari model diatas bahwa tidak diperhitungkannya produktivitas/pengalaman dari pekerja Full time dan pekerja Part Time. 3. Costs might be reduced by relaxing the constraint that no more than 40% of the day’s requirement be met by part-timers. Would changing the 40% to a higher value significantly reduce costs? Tentunya. Sejalan dengan pemikiran yang logis, jika kita mempekerjakan pekerja part-time maka kita akan mengurangi biaya. Hasil pengurangan dari perhitungan berdasarkan Excel QM akan ditampilkan di slide selanjutnya.
  • 11. Chase Manhattan change the limitation to 60% requirements Apabila kita merubah pembatasan pekerja part-time menjadi 60% dari total kebutuhan, maka biaya minimumnya menjadi $2,966.24
  • 12. Chase Manhattan change the limitation to 80% requirements Apabila kita mengganti pembatasan pekerja part-time menjadi 80% dari total kebutuhan, maka biaya minimum cost menjadi $2,700.39