EVALUASI KINERJA SUPPLIER MENGGUNAKAN METODE …eprints.umm.ac.id/55822/44/PENDAHULUAN.pdf · Teknik Industri Fakultas Teknik Universitas Muhammadiyah Malang. Selama penyusunan skripsi

EVALUASI KINERJA SUPPLIER MENGGUNAKAN

METODE ANALYTIC HIERARCHY PROCESS (AHP)

DAN TOPSIS GREY

(Studi Kasus Pada CV. Ono Margo Utomo)

Skripsi

Diajukan Kepada Universitas Muhammadiyah Malang

Untuk Memenuhi Salah Satu Persyaratan Akademik

Dalam Menyelesaikan Program Sarjana Teknik

Disusun Oleh:

DEWI MAHARANI

201510140311045

JURUSAN TEKNIK INDUSTRI

FAKULTAS TEKNIK

UNIVERSITAS MUHAMMADIYAH MALANG

2019

KATA PENGANTAR

Assalamu’alaikum Wr. Wb.

Alhamdulillah, puji syukur atas lehadirat Allah SWT karena berkat Rahmat,

Berkah dan Karunia-Nya penulis dapat menyelesaikan penyusuan skripsi ini.

Shalawad serta salam semoga senantiasa terlimpah kepada Nabi Muhammad SAW

yang telah menjadi panutan sehingga penulis dapat menyelesaikan skripsi yag

berjudul “Evaluasi Kinerja Supplier Menggunakan Metode Analytic Hierarchy

Process (AHP) dan TOPSIS Grey”. Penulisan skripsi ini diajukan untuk

memenuhi salah satu persyaratan akademik memperoleh gelar Sarjana pada jurusan

Teknik Industri Fakultas Teknik Universitas Muhammadiyah Malang.

Selama penyusunan skripsi tidak terlepas dari bantuan, bimbingan, dan

motivasi dari berbagai pihak. Untuk itu kesempatan ini penulis dengan senang hati

menyampaikan terima kasih kepada yang terhormat:

1. Allah SWT, atas segala tuntunan, kesehatan, kemudahan, dan keselamatan

yang diberikan kepada penulis selama pengerjaan skripsi.

2. Kedua Orang Tua dan Keluarga yang selalu memberikan doa, dukungan,

serta motivasi dalam pelaksanaan pengerjaan skripsi.

3. Bapak Ilyas Mas’udin Ph.D selaku ketua jurusan Teknik Industri serta

Dosen Pembimbing I yang telak memberikan waktu, tenaga, arahan,

membimbing dan memotivasi selama pengerjaan skripsi ini. Semoga ilmu

yang bapak berikan bermanfaat untuk kedepannya. Terima kasih dan mohon

maaf bila ada kesalahan yang penulis telah lakukan

4. Ibu Ikhlasul Amalynda, ST., MT. selaku Dosen Pembimbing II. Terima

kasih atas segala bimbingan, ajaran, dan ilmu-ilmu baru yang penulis

daparkan dari selama penyusunan skripsi. Dengan segala kesibukan beliau

bersedia untuk membimbing dan menuntun penulis dalam pengusunan

skripsi.

5. Ibu Shanty Kusuma Dewi, ST., MT. selaku koordinator Tugas Akhir

Jurusan Teknik Industri Universitas Muhammadiyah Malang.

6. Bapak Dana Marsetya Utama, ST., MT. selaku Dosen Wali Teknik Industri

angkatan 2015 A.

7. Ibu Annisa Kesy G. ST., MT. selaku ketua KBK Optimasi Sistem Industri

(OSI)

8. Bapak/Ibu Dosen dan Staff jurusan Teknik Industri yang telah banyak

membantu dalam penyelesaian skripsi ini.

9. Teman-teman Teknik Industri angkatan 2015 A

Rasa hormat dan terimakasih bagi semua pihak atas segala dukungan dan

doanya. Sebagai ungkapan terimasih yang sangat mendalan penulis hanya dapat

menghaturkan do’a kepada Allah SWT semoga segala perhatian, bantuan,

dukungan, semangat serta motivasi semoga Allah SWT membalah segala kebaikan

mereka berikan kepada peulis. Amin.

Wassalamu’alaikum Wr. Wb.

Malang, 9 September 2019

Penulis

Dewi Maharani

DAFTAR ISI

Halaman Judul............................................................................................................

Lembar pengesahan Skripsi.......................................................................................

Lembar Asistensi Skripsi...........................................................................................

Berita Acara Ujian......................................................................................................

Surat Pernyataan Keaslian..........................................................................................

Surat Keterangan Pengambilan Data dari Perusahaan...............................................

Kata Pengantar ......................................................................................................... i

Abstrak ................................................................................................................... iii

Abstract .................................................................................................................. iv

Daftar Isi.................................................................................................................. v

Daftar Tabel .......................................................................................................... vii

Daftar Gambar ........................................................................................................ ix

Daftar Lampiran ...................................................................................................... x

BAB I PENDAHULUAN ...................................................................................... 1

1.1 Latar Belakang ............................................................................................... 1

1.2 Rumusan Masalah .......................................................................................... 3

1.3 Tujuan Penelitian ........................................................................................... 3

1.4 Manfaat Penelitian ......................................................................................... 3

1.5 Batasan Masalah Dan Asumsi ....................................................................... 4

BAB II LANDASAN TEORI ............................................................................... 5

2.1 Supply Chain Management ............................................................................ 5

2.2 Supplier (Pemasok) ........................................................................................ 5

2.3 Evaluasi Kinerja Supplier .............................................................................. 7

2.3.1 Kriteria Evaluasi Kinerja Supplier ............................................................ 9

2.4 Analytic Hierarchy Process (AHP) ............................................................... 9

2.4.1 Pengertian AHP ........................................................................................ 9

2.4.2 Kelebihan Dan Kelemahan AHP ............................................................ 10

2.4.3 Tahapan AHP .......................................................................................... 11

2.5 Technique For Order Preference By Similary To Ideal Solution With Grey

Relation (Topsis Grey). ......................................................................................... 14

2.5.1 Topsis (Technique For Order Preference By Similary To Ideal Solution)

..................................................................................................................14

2.5.2 Grey Theory ............................................................................................ 17

2.5.3 Grey Number ........................................................................................... 19

2.5.4 Topsis Grey ............................................................................................. 20

2.6 Literature Review......................................................................................... 22

BAB III METODOLOGI PENELITIAN ......................................................... 25

3.1 Metode Penelitian ........................................................................................ 25

3.2 Deskripsi Metodologi Penelitian ................................................................. 26

BAB IV STUDI KASUS ..................................................................................... 32

4.1 Gambaran Umum Perusahaan ..................................................................... 32

4.2 Prosedur Pengadaan Bahan Baku ................................................................ 32

4.3 Pengumpulan Data ....................................................................................... 33

4.4 Pengolahan Data .......................................................................................... 36

4.4.1 Pengolahan Data AHP ............................................................................ 36

4.4.2 Bobot Preferensi Kriteria ........................................................................ 50

4.4.3 Pengolahan Data Topsis Grey ................................................................. 51

BAB V ANALISA PEMBAHASAN .................................................................. 57

5.1 Identifikasi Kriteria Evaluasi Supplier ........................................................ 57

5.2 Analisa Matriks Perbandingan Berpasangan ............................................... 58

5.3 Analisa Hasil Pembobotan Kriteria Dengan AHP ....................................... 58

5.3.1 Bobot Kriteria Evaluasi Kriteria ............................................................. 58

5.3.2 Consistency Ratio.................................................................................... 60

5.4 Analisa Supplier Dengan Metode Topsis Grey ........................................... 61

5.4.1 Langkah Pengerjaan Metode Topsis Grey .............................................. 61

5.4.2 Perangkingan Supplier ............................................................................ 63

5.5 Usulan Pengadaan Bahan Baku ................................................................... 63

BAB VI PENUTUP ............................................................................................. 67

6.1 Kesimpulan .................................................................................................. 67

6.2 Saran ............................................................................................................ 68

DAFTAR PUSTAKA .......................................................................................... 69

LAMPIRAN ......................................................................................................... 74

DAFTAR TABEL

Tabel 2.1 MADM vs MODM ................................................................................. 8

Tabel 2.2 kriteria pemilihan supplier ...................................................................... 9

Tabel 2.3 Matriks Perbandingan Berpasangan...................................................... 12

Tabel 2.4 Skala perbandingan ............................................................................... 12

Tabel 2.5 Nilai Random Index (RI) ...................................................................... 14

Tabel 2.6 Perluasan konsep “abu-abu” ................................................................. 17

Tabel 2.7 Skala Rating Atribut ............................................................................. 19

Tabel 3.1 flowchart metodologi penelitian ........................................................... 25

Tabel 3.2 Kriteria dan Subkriteria evaluasi kinerja supplier................................. 28

Tabel 3.3 Contoh pemberian nilai alternatif ......................................................... 30

Tabel 4.1 supplier CV. Ono Margo Utomo .......................................................... 33

Tabel 4.2 Kriteria evaluasi kinerja supplier .......................................................... 33

Tabel 4.3 Matriks perbandingan berpasangan oleh manajer purchasing .............. 35

Tabel 4.4 Matriks perbandingan berpasangan oleh general manajer ................... 35

Tabel 4.5 Matriks perbandingan berpasangan oleh kepala bagian gudang ........... 36

Tabel 4.6 matriks perbandingan kriteria manajer purchasing .............................. 37

Tabel 4.7 matriks perbandingan kriteria general manajer .................................... 38

Tabel 4.8 rata-rata geometrik dari krtiteria utama ................................................ 38

Tabel 4.9 sintesis kriteria ...................................................................................... 39

Tabel 4.10 Eigen vektor kriteria............................................................................ 40

Tabel 4.11 matriks perbandingan subkriteria quality oleh manajer purchasing ... 41

Tabel 4.12 matriks perbandingan subkriteria quality oleh general manajer ......... 41

Tabel 4.13 matriks perbandingan subkriteria quality oleh kabag gudang ............ 41

Tabel 4.14 rata-rata geometrik subkriteria quality ................................................ 41

Tabel 4.15 Sintesis subkriteria quality .................................................................. 42

Tabel 4.16 Eingen vektor subkriteria quality ........................................................ 42

Tabel 4.17 matriks perbandingan subkriteria flexibility oleh manajer purchasing 43

Tabel 4.18 matriks perbandingan subkriteria flexibility oleh general manajer ..... 43

Tabel 4.19 rata-rata geometrik subkriteria flexibility ............................................ 43

Tabel 4.20 Sintesis subkriteria flexibility .............................................................. 43

Tabel 4.21 Eingen vektor subkriteria flexibility .................................................... 44

Tabel 4.22 matriks perbandingan subkriteria delivery oleh manajer purchasing . 45

Tabel 4.23 matriks perbandingan subkriteria delivery oleh general manajer ....... 45

Tabel 4.24 rata-rata geometrik subkriteria delivery .............................................. 45

Tabel 4.25 Sintesis subkriteria delivery ................................................................ 45

Tabel 4.26 Eigen vektor subkriteria delivery ........................................................ 46

Tabel 4.27 matriks perbandingan subkriteria cost oleh manajer purchasing........ 47

Tabel 4.28 matriks perbandingan subkriteria cost oleh general manajer ............. 47

Tabel 4.29 rata-rata geometrik subkriteria cost..................................................... 47

Tabel 4.30 Sintesis subkriteria cost ....................................................................... 47

Tabel 4.31 Eigen vektor subkriteria cost............................................................... 48

Tabel 4.32 Matriks perbandingan subkriteria responsiviness oleh manajer

purchasing ............................................................................................................. 48

Tabel 4.33 Matriks perbandingan subkriteria responsiviness oleh general manajer

............................................................................................................................... 49

Tabel 4.34 rata-rata geometrik subkriteria responsiviness .................................... 49

Tabel 4.35 Sintesis subkriteria responsiviness ...................................................... 49

Tabel 4.36 Eigen vektor subkriteria responsiviness .............................................. 49

Tabel 4.37 Bobot preferens kriteria ...................................................................... 50

Tabel 4.38 skala penilaian supplier ....................................................................... 51

Tabel 4.39 matrik Grey number ............................................................................ 52

Tabel 4.40 normalisasi matriks TOPSIS Grey ...................................................... 53

Tabel 4.41 Alternatif ideal positif dan negatif ...................................................... 54

Tabel 4.42 Selisih jarak dan kedekatan relatif ...................................................... 55

Tabel 4.43 ranking supplier berdasarkan kedekatan relatif .................................. 56

Tabel 5.1 nilai bobot kriteria evaluasi supplier nylon cord .................................. 58

Tabel 5.2 hasil CR ................................................................................................. 61

DAFTAR GAMBAR

Gambar 2.1 Struktur Hirarki ................................................................................. 11

Gambar 2.2 Flowshat metode TOPSIS ................................................................. 16

Gambar 2.3 Sistem konsep teori Grey .................................................................. 18

DAFTAR LAMPIRAN

Lampiran 1: Kuesioner Tingkat Kepentingan Kriteria ......................................... 74

Lampiran 2: Kuesioner Penilaian Supplier ........................................................... 78

Lampiran 3: perhitungan safety stock ................................................................... 81

Lampiran 4: Penilaian Supplier ............................................................................ 82

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