Post on 27-Jan-2021
PENGENDALIAN PERSEDIAAN DENGAN
CONTINUOUS AND PERIODIC REVIEW POLICY
BERDASARKAN KLASIFIKASI PRODUK ABC-VED (Studi Kasus : PT. Natura Laboratoria Prima)
Skripsi
Diajukan Kepada Universitas Muhammadiyah Malang
Untuk Memenuhi Salah Satu Persyaratan Akademik
Dalam Menyelesaikan Program Sarjana Teknik
Disusun Oleh :
AIDA ALMIRA IMANI
201410140311084
JURUSAN TEKNIK INDUSTRI
FAKULTAS TEKNIK
UNIVERSITAS MUHAMMADIYAH MALANG
2019
LEMBAR PENGESAHAN SKRIPSI
PENGENDALIAN PERSEDIAAN DENGAN CONTINUOUS AND
PERIODIC REVIEW POLICYBERDASARKAN KLASIFIKASI
PRODUK ABC-VED
(Studi Kasus: PT. Natura Laboratoria Prima)
Disusun Oleh:
AIDA ALMIRA IMANI
201410140311084
Menyetujui dan Mengesahkan
Malang, 23 April 2019
Dosen Pembimbing II
Dana Marsetiya, S.T., M.T.
dustri
i
KATA PENGANTAR
Puji syukur kehadirat Allah SWT, atas limpahan Rahmat dan Karunia-Nya,
sehingga penulis dapat merampungkan skripsi ini untuk memenuhi salah satu
syarat menyelesaikan studi serta dalam rangka memperoleh gelar Sarjana
Teknik.
Penghargaan dan terima kasih yang setulus-tulusnya saya sampaikan kepada
Ayah dan Ibu yang yang telah mencurahkan segenap cinta dan kasih sayang
serta perhatian moril maupun materil sehingga sampai pada titik ini. Semoga
Allah SWT selalu melimpahkan Rahmat, Kesehatan, Karunia dan keberkahan
di dunia dan di akhirat atas budi baik yang telah diberikan kepada penulis.
Penghargaan dan terima kasih penulis berikan kepada Bapak Ilyas Masudin, Ph.
D selaku Pembimbing I dan Bapak Dana Marsetya, S.T., M.T., selaku
Pembimbing II yang telah membantu penulisan skripsi ini. Serta ucapan terima
kasih kepada :
1. Seluruh dosen jurusan teknik industri yang telah memberikan ilmu
selama dibangku perkuliahan
2. Seluruh narasumber di PT. Natura yang telah membantu proses
pengumpulan data
3. Vita, Khanza dan Bayu yang selalu menjadi penyemangat saat proses
pengerjaan skripsi
4. Dian HP yang memberikan saran dan solusi dalam proses pengerjaan
skripsi
5. Teman-teman lainnya yang menjadi penyemangat dalam pengerjaan
skripsi yang tidak bisa saya sebutkan satu persatu
iv
DAFTAR ISI
HALAMAN JUDUL ............................................................................................
LEMBAR PENGESAHAN SKRIPSI .................................................................
LEMBAR ASISTENSI SKRIPSI ........................................................................
BERITA ACARA UJIAN ....................................................................................
SURAT PERNYATAAN KEASLIAN................................................................
SURAT KETERANGAN PENGAMBILAN DATA PERUSAHAAN ..............
KATA PENGANTAR ........................................................................................ i
ABSTRAK ......................................................................................................... ii
ABSTRACT ........................................................................................................ iii
DAFTAR ISI ..................................................................................................... iv
DAFTAR TABEL ............................................................................................ vii
DAFTAR GAMBAR ...................................................................................... viii
DAFTAR LAMPIRAN ..................................................................................... ix
BAB I ................................................................................................................. 1
PENDAHULUAN ............................................................................................. 1
1.1 Latar Belakang .................................................................................... 1
1.2 Rumusan Masalah ............................................................................... 2
1.3 Tujuan Penelitian ................................................................................. 2
1.4 Manfaat Penelitian ............................................................................... 3
1.5 Batasan Masalah dan Asumsi .............................................................. 3
BAB II ................................................................................................................ 4
LANDASAN TEORI ......................................................................................... 4
2.1 Persediaan ............................................................................................ 4
2.2 Fungsi Persediaan ................................................................................ 4
2.3 Klafikasi Persediaan ............................................................................ 5
2.3.1 Metode ABC ............................................................................................. 7
2.3.2 Metode VED (Vital, Essential, Desirable) ................................................ 8
2.3.3 Matriks ABC-VED ................................................................................... 9
2.4 Simulasi ............................................................................................. 10
2.5 Biaya Persediaan ............................................................................... 10
2.6 Safety Stock dan Service Level .......................................................... 11
2.7 Kebijakan Persediaan ........................................................................ 12
v
2.7.1 Continous Review Policy......................................................................... 14
2.7.2 Periodic Review Policy ........................................................................... 18
2.8 Penelitian Terdahulu .......................................................................... 23
BAB III ............................................................................................................ 25
METODOLOGI PENELITIAN ....................................................................... 25
3.1 Tahap Studi Pustaka dan Studi Lapangan ......................................... 25
3.2 Tahap Pengumpulan Data.................................................................. 25
3.3 Tahap pengolahan Data ..................................................................... 26
3.4 Tahap Analisis ................................................................................... 29
3.5 Tahap Kesimpulan dan Saran ............................................................ 29
BAB IV ............................................................................................................ 31
PENGUMPULAN DATA DAN PENGOLAHAN DATA ............................. 31
4.1 Tinjauan Perusahaan .......................................................................... 31
4.1.1 Gambaran Umum Perusahaan ................................................................. 31
4.1.2 Visi dan Misi Perusahaan ........................................................................ 32
4.1.3 Alur Pemesanan ...................................................................................... 32
4.2 Pengumpulan Data ............................................................................ 33
4.2.1 Data Permintaan dan Data Persediaan Produk Tahun 2017 ................... 34
4.2.3 Biaya Simpan .......................................................................................... 37
4.2.4 Biaya Pesan dan Backorder ..................................................................... 39
4.3 Pengolahan Data ................................................................................ 41
4.3.1 Klasifikasi ABC ...................................................................................... 41
4.3.2 Klasifikasi Vital, Essential, Desirable (VED) ......................................... 43
4.3.3 Matriks Produk ABC-VED ..................................................................... 44
4.3.4 Kebijakan Persediaan untuk Kelas I ....................................................... 45
4.3.5 Simulasi Persediaan ................................................................................ 51
BAB V .............................................................................................................. 60
ANALISA DAN PEMBAHASAN .................................................................. 60
5.1 Analisa Hasil Klasifikasi Produk ...................................................... 60
5.2 Analisa Hasil Simulasi dengan Metode Usulan ................................ 61
5.3 Analisa Hasil Simulasi Persediaan Kondisi Perusahaan dan Metode
Usulan 69
BAB VI ............................................................................................................ 71
PENUTUP ........................................................................................................ 71
6.1 Kesimpulan ........................................................................................ 71
6.2 Saran .................................................................................................. 72
vi
DAFTAR LAMPIRAN .................................................................................... 73
DAFTAR PUSTAKA .................................................................................... 110
vii
DAFTAR TABEL
Tabel 2.1 Klasifikasi VED ................................................................................. 9
Tabel 2.2 Matriks ABC-VED ......................................................................... 10
Tabel 2.3 Penelitian Terdahulu ........................................................................ 23
Tabel 4.1 Data Permintaan Produk A sampai J Tahun 2017 .......................... 34
Tabel 4.2 Data Permintaan Produk K sampai T Tahun 2017 ......................... 35
Tabel 4.3 Data Permintaan Produk A sampai T Tahun 2016 ......................... 36
Tabel 4.4 Harga Produk ................................................................................... 37
Tabel 4.5 Biaya Simpan ................................................................................... 38
Tabel 4.6 Biaya Simpan ................................................................................... 38
Tabel 4.7 Biaya Pesan dan Backorder.............................................................. 39
Tabel 4.8 Lead Time Produksi ........................................................................ 40
Tabel 4.9 Perhitungan Klasifikasi ABC ........................................................... 42
Tabel 4.10 Klasifikasi VED ............................................................................. 43
Tabel 4.11 Matriks Produk ABC-VED ............................................................ 44
Tabel 4.12 Input Data Awal Produk K ............................................................ 45
Tabel 4.13 Hasil Literasi Perhitungan Produk K ............................................. 46
Tabel 4.14 Ringkasan Kebijakan (s,Q) ............................................................ 47
Tabel 4.15 Input Data Awal Produk K ............................................................ 47
Tabel 4.16 Ringkasan Kebijakan (s,S) ............................................................. 48
Tabel 4.17 Ringkasan Kebijakan (R,S) ............................................................ 49
Tabel 4.18 Ringkasan Kebijakan (R,s,S) ......................................................... 50
Tabel 4.19 Simulasi Persediaan Produk K dengan Metode (s,Q) .................... 53
Tabel 4.20 Simulasi Persediaan Produk K dengan Metode (s,S) ..................... 55
Tabel 4.21 Simulasi Persediaan Produk K dengan Metode (R,S).................... 57
Tabel 4.22 Simulasi Persediaan Produk K dengan Metode (R,s,S) ................. 59
viii
DAFTAR GAMBAR
Gambar 3.1 Flowchart Pelaksanaan Penelitian ............................................... 30
Gambar 4.1 Alur Pemesanan PT. Natura Laboratoria Prima ........................... 33
Gambar 5.1 Total Biaya Persediaan Kategori AV ........................................... 61
Gambar 5.2 Service Level Kategori AV .......................................................... 62
Gambar 5.3 Total Biaya Persediaan Kategori BV ........................................... 62
Gambar 5.4 Service Level Kategori BV .......................................................... 63
Gambar 5.5 Total Biaya Persediaan Kategori CV ........................................... 64
Gambar 5.6 Service Level Kategori CV .......................................................... 65
Gambar 5.7 Total Biaya Persediaan Kategori AE ........................................... 65
Gambar 5.8 Service Level Kategori AE ......................................................... 66
Gambar 5.9 Total Biaya Persediaan Kategori AD ........................................... 67
Gambar 5.10 Service Level Kategori AD ........................................................ 67
ix
DAFTAR LAMPIRAN
Lampiran 1 ...................................................................................................... 73
Lampiran 2 ....................................................................................................... 75
Lampiran 3 ....................................................................................................... 76
Lampiran 4 ....................................................................................................... 77
Lampiran 5 ....................................................................................................... 78
Lampiran 6 ....................................................................................................... 79
Lampiran 7 ....................................................................................................... 80
Lampiran 8 ....................................................................................................... 81
Lampiran 9 ....................................................................................................... 82
Lampiran 10 ..................................................................................................... 83
Lampiran 11 ..................................................................................................... 84
Lampiran 12 ..................................................................................................... 85
Lampiran 13 ..................................................................................................... 86
Lampiran 14 ..................................................................................................... 87
Lampiran 15 ..................................................................................................... 88
Lampiran 16 ..................................................................................................... 89
Lampiran 17 ..................................................................................................... 90
Lampiran 18 ..................................................................................................... 91
Lampiran 19 ..................................................................................................... 92
Lampiran 20 ..................................................................................................... 93
Lampiran 21 ..................................................................................................... 94
Lampiran 22 ..................................................................................................... 95
Lampiran 23 ..................................................................................................... 96
Lampiran 24 ..................................................................................................... 97
Lampiran 25 ..................................................................................................... 98
Lampiran 26 ..................................................................................................... 99
Lampiran 27 ................................................................................................... 100
Lampiran 28 ................................................................................................... 101
Lampiran 29 ................................................................................................... 102
Lampiran 30 ................................................................................................... 103
x
Lampiran 31 ................................................................................................... 104
Lampiran 32 ................................................................................................... 105
Lampiran 33 ................................................................................................... 106
Lampiran 34 ................................................................................................... 107
Lampiran 35 ................................................................................................... 108
Lampiran 36 ................................................................................................... 109
110
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IMG20190502152918PENDAHULUAN