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ix
DAFTAR ISI
ABSTRAK ............................................................................................................. vi
KATA PENGANTAR .......................................................................................... vii
DAFTAR ISI .......................................................................................................... ix
DAFTAR GAMBAR ............................................................................................ xii
DAFTAR TABEL ................................................................................................ xix
DAFTAR LAMPIRAN ....................................................................................... xxii
BAB I PENDAHULUAN ....................................................................................... 1
1.1. Latar Belakang ......................................................................................... 1
1.2 Rumusan Masalah .................................................................................... 4
1.3 Batasan Masalah ....................................................................................... 4
1.4 Tujuan ....................................................................................................... 5
1.5 Manfaat Penelitian .................................................................................... 5
1.6 Sistematika Penulisan ............................................................................... 5
BAB II LANDASAN TEORI ................................................................................. 7
2.1 Perancangan .............................................................................................. 7
2.2 Aplikasi .................................................................................................... 7
2.3 Biaya ......................................................................................................... 8
2.4 Harga Jual ................................................................................................. 9
2.5 Metode Full Costing ................................................................................. 9
2.6 Laba yang diharapkan (Target ROI)....................................................... 10
x
2.7 System Development Life Cycle ............................................................. 13
BAB III ANALISIS DAN PERANCANGAN SISTEM ...................................... 16
3.1 Analisis Sistem ....................................................................................... 16
3.1.1 Identifikasi Masalah ........................................................................ 19
3.1.2 Analisis Kebutuhan ......................................................................... 22
3.2 Perancangan Sistem ................................................................................ 24
3.2.1 Diagram Input-Proses-Output ......................................................... 25
3.2.2 Context Diagram ............................................................................. 35
3.2.3 Diagram Jenjang.............................................................................. 37
3.2.4 Data Flow Diagram (DFD) Level 0 ................................................ 39
3.2.5 Data Flow Diagram (DFD) Level 1 Laba Yang Diharapkan ......... 40
3.2.6 Entity Relational Diagram (ERD) .................................................. 42
3.2.7 Struktur Tabel.................................................................................. 44
3.2.8 Desain Input .................................................................................... 49
3.2.9 Desain Uji Coba .............................................................................. 58
BAB IV IMPLEMENTASI DAN EVALUASI .................................................... 68
4.1 Implementasi .......................................................................................... 68
4.1.1 Kebutuhan Perangkat Keras ............................................................ 68
4.1.2 Kebutuhan Perangkat Lunak ........................................................... 69
4.1.3 Implementasi Aplikasi .................................................................... 69
4.1.4 Uji Coba Aplikasi ............................................................................ 85
xi
4.1.5 Uji Coba Perhitungan .................................................................... 125
4.2 Evaluasi ................................................................................................ 151
BAB V PENUTUP .............................................................................................. 166
5.1 Kesimpulan ........................................................................................... 166
5.2 Saran ..................................................................................................... 166
DAFTAR PUSTAKA ......................................................................................... 167
BIODATA ........................................................................................................... 169
LAMPIRAN ........................................................................................................ 170
xii
DAFTAR GAMBAR
Gambar 1. 1 Grafik penjualan PT. Sinar Baja Hutama ........................................... 3
Gambar 2. 1 Elemen Imbal Hasil atas Investasi (ROI) ......................................... 13
Gambar 2. 2 SDLC Waterfall ............................................................................... 14
Gambar 3. 1 Tahapan Pengembangan Waterfall................................................... 16
Gambar 3. 2 Document Flow Penentuan Harga Jual ............................................ 21
Gambar 3. 3 Diagram Input-Proses-Output .......................................................... 25
Gambar 3. 4 Context Diagram Aplikasi Penentuan Harga Jual Pada PT. Sinar
Baja Hutama .......................................................................................................... 36
Gambar 3. 5 Diagram Jenjang Aplikasi Penentuan Harga Jual Pada PT. Sinar Baja
Hutama .................................................................................................................. 38
Gambar 3. 6 DFD Level 0 ..................................................................................... 40
Gambar 3. 7 DFD Level 1 Laba Yang Diharapkan .............................................. 41
Gambar 3. 8 Conceptual Data Model Penentuan Harga Jual ............................... 42
Gambar 3. 9 Physical Data Model (PDM) Penentuan Harga Jual ........................ 43
Gambar 3. 10 Desain Login .................................................................................. 50
Gambar 3. 11 Desain Halaman Utama .................................................................. 50
Gambar 3. 12 Desain Form Rerata Aktiva Operasional ....................................... 51
Gambar 3. 13 Desain Form Jangka Investasi ........................................................ 51
Gambar 3. 14 Desain Form Pelanggan ................................................................. 51
Gambar 3. 15 Desain Form Pemesanan ................................................................ 52
Gambar 3. 16 Desain Form Produk ...................................................................... 52
Gambar 3. 17 Desain Form Administrasi dan Penjualan ...................................... 53
xiii
Gambar 3. 18 Desain Form ROI Tiap Jam Mesin ................................................ 53
Gambar 3. 19 Desain Form ROIT Tiap Jam Mesin Tab Cari Data ...................... 53
Gambar 3. 20 Desain Form ROI Produk ............................................................... 54
Gambar 3. 21 Desain Form Markup ..................................................................... 54
Gambar 3. 22 Desain Form Markup Tab Cari Data .............................................. 55
Gambar 3. 23 Desain Form Penentuan Harga Jual ............................................... 55
Gambar 3. 24 Desain Ketentuan Harga................................................................. 56
Gambar 3. 25 Desain Penawaran Harga ............................................................... 56
Gambar 3. 26 Desain Laporan Laba Yang Diharapkan ........................................ 57
Gambar 3. 27 Desain Laporan Markup ................................................................. 57
Gambar 3. 28 Desain Laporan Harga Jual ............................................................ 58
Gambar 3. 29 Desain Surat Penawaran ................................................................. 58
Gambar 4. 1 Form Login ...................................................................................... 70
Gambar 4. 2 Form Halaman Utama ...................................................................... 71
Gambar 4. 3 Form Aktiva Operasional ................................................................. 72
Gambar 4. 4 Form Jangka Investasi ...................................................................... 73
Gambar 4. 5 Form Produk .................................................................................... 74
Gambar 4. 6 Form Ketentuan Harga ..................................................................... 75
Gambar 4. 7 Form Pelanggan ............................................................................... 76
Gambar 4. 8 Form Administrasi dan Penjualan .................................................... 77
Gambar 4. 9 Form ROI Mesin .............................................................................. 78
Gambar 4. 10 Form Pemesanan ............................................................................ 79
Gambar 4. 11 Form ROI Produk .......................................................................... 80
Gambar 4. 12 Form Markup ................................................................................. 81
xiv
Gambar 4. 13 Form Harga Jual ............................................................................. 81
Gambar 4. 14 Form Cetak Laporan....................................................................... 82
Gambar 4. 15 Laporan Laba Yang Diharapkan Produk ........................................ 82
Gambar 4. 16 Laporan Markup ............................................................................. 83
Gambar 4. 17 Laporan Harga Jual Produk ............................................................ 83
Gambar 4. 18 Halaman Surat Penawaran ............................................................. 84
Gambar 4. 19 Surat Penawaran ............................................................................. 85
Gambar 4. 20 Halaman Login Awal ..................................................................... 86
Gambar 4. 21 Uji Coba Login Manager................................................................ 87
Gambar 4. 22 Uji Coba Gagal Login .................................................................... 87
Gambar 4. 23 Uji Coba Simpan Data Rerata Aktiva Operasional ........................ 88
Gambar 4. 24 Uji Coba Ubah Data Rerata Aktiva Operasional ........................... 89
Gambar 4. 25 Uji Coba Hapus Data Rerata Aktiva Operasional .......................... 89
Gambar 4. 26 Uji Coba Inputan Tidak Valid Data Rerata Aktiva Operasional .... 90
Gambar 4. 27 Uji Coba Simpan Data Jangka Investasi ........................................ 91
Gambar 4. 28 Uji Coba Ubah Data Jangka Investasi ............................................ 91
Gambar 4. 29 Uji Coba Hapus Data Jangka Investasi .......................................... 92
Gambar 4. 30 Uji Coba Inputan Tidak Valid Jangka Investasi............................. 92
Gambar 4. 31 Uji Coba Simpan Data Pelanggan .................................................. 93
Gambar 4. 32 Uji Coba Ubah Data Pelanggan ..................................................... 94
Gambar 4. 33 Uji Coba Hapus Data Pelanggan .................................................... 94
Gambar 4. 34 Uji Coba Inputan Tidak Valid Data Pelanggan .............................. 95
Gambar 4. 35 Uji Coba Simpan Data Produk ....................................................... 96
Gambar 4. 36 Uji Coba Ubah Data Produk........................................................... 97
xv
Gambar 4. 37 Uji Coba Hapus Data Produk ......................................................... 97
Gambar 4. 38 Uji Coba Inputan Tidak Valid Data Produk ................................... 98
Gambar 4. 39 Uji Coba Simpan Data Ketentuan Harga ....................................... 99
Gambar 4. 40 Uji Coba Ubah Data Ketentuan Harga ........................................... 99
Gambar 4. 41 Uji Coba Hapus Data Ketentuan Harga ....................................... 100
Gambar 4. 42 Uji Coba Inputan Tidak Vali Data Ketentuan Harga ................... 100
Gambar 4. 43 Uji Coba Simpan Data Administrasi Dan Penjualan ................... 102
Gambar 4. 44 Uji Coba Ubah Data Administrasi Dan Penjualan ....................... 102
Gambar 4. 45 Uji Coba Hapus Data Administrasi Dan Penjualan ..................... 103
Gambar 4. 46 Uji Coba Inputan Tidak Valid Data Administrasi Dan Penjualan 103
Gambar 4. 47 Uji Coba Hasil Nilai ROI Jam Mesin .......................................... 105
Gambar 4. 48 Uji Coba Simpan ROI Jam Mesin ................................................ 105
Gambar 4. 49 Uji Coba Ubah ROI Jam Mesin ................................................... 106
Gambar 4. 50 Uji Coba Hapus Data ROI Jam Mesin ......................................... 106
Gambar 4. 51 Uji Coba Validasi Inputan Salah Data ROI Mesin ...................... 107
Gambar 4. 52 Uji Coba Menampilkan Daftar Data ROI Mesin ......................... 107
Gambar 4. 53 Uji Coba Simpan Data Pemesanan .............................................. 108
Gambar 4. 54 Uji Coba Ubah Data Pemesanan .................................................. 109
Gambar 4. 55 Uji Coba Hapus Data Pemesanan................................................. 109
Gambar 4. 56 Uji Coba Inputan Tidak Valid Data Pemesanan .......................... 110
Gambar 4. 57 Uji Coba Nilai ROI Produk .......................................................... 111
Gambar 4. 58 Uji Coba Simpan Data ROI Produk ............................................. 111
Gambar 4. 59 Uji Coba Ubah Data ROI Produk ................................................. 112
Gambar 4. 60 Uji Coba Hapus Data ROI Produk ............................................... 112
xvi
Gambar 4. 61 Uji Coba Validasi Inputan Salah Data ROI Produk ..................... 113
Gambar 4. 62 Uji Coba Menampilkan Data ROI Produk ................................... 113
Gambar 4. 63 Uji Coba Hasil Nilai Markup ....................................................... 114
Gambar 4. 64 Uji Coba Simpan Data Markup .................................................... 115
Gambar 4. 65 Uji Coba Ubah Data Markup ....................................................... 115
Gambar 4. 66 Uji Coba Hapus Data Markup ...................................................... 116
Gambar 4. 67 Uji Coba Validasi Inputan Salah Markup .................................... 116
Gambar 4. 68 Uji Coba Menampilkan Data Markup .......................................... 117
Gambar 4. 69 Uji Coba Hasil Nilai Harga Jual Produk ...................................... 118
Gambar 4. 70 Uji Coba Simpan Data Harga Jual ............................................... 119
Gambar 4. 71 Uji Coba Ubah Data Harga Jual ................................................... 119
Gambar 4. 72 Uji Coba Hapus Data Harga Jual ................................................. 120
Gambar 4. 73 Uji Coba Validasi Inputan Salah Data Harga Jual ....................... 120
Gambar 4. 74 Uji Coba Menampilkan Data Harga Jual ..................................... 121
Gambar 4. 75 Hasil Uji Coba Laporan Laba Yang Diharapkan ......................... 122
Gambar 4. 76 Laporan Markup ........................................................................... 123
Gambar 4. 77 Uji Coba Laporan Harga Jual Produk .......................................... 124
Gambar 4. 78 Uji Coba Perhitungan ROI Mesin Lama Modal Kembali 0,5 Tahun
............................................................................................................................. 128
Gambar 4. 79 Uji Coba Perhitungan ROI Mesin Lama Modal Kembali 1 Tahun
............................................................................................................................. 128
Gambar 4. 80 Uji Coba Perhitungan ROI Mesin Lama Modal Kembali 1,5 Tahun
............................................................................................................................. 129
xvii
Gambar 4. 81 Uji Coba Perhitungan ROI Mesin Lama Modal Kembali 2 Tahun
............................................................................................................................. 130
Gambar 4. 82 Uji Coba Perhitungan ROI Mesin Lama Modal Kembali 2,5 Tahun
............................................................................................................................. 130
Gambar 4. 83 Uji Coba Perhitungan ROI Mesin Lama Modal Kembali 3 Tahun
............................................................................................................................. 131
Gambar 4. 84 Uji Coba Perhitungan ROI Produk Berdasarkan ROI Mesin Lama
Modal Kembali 0,5 Tahun .................................................................................. 134
Gambar 4. 85 Uji Coba Perhitungan ROI Produk Berdasarkan ROI Mesin Lama
Modal Kembali 1 Tahun ..................................................................................... 135
Gambar 4. 86 Uji Coba Perhitungan ROI Produk Berdasarkan ROI Mesin Lama
Modal Kembali 1,5 Tahun .................................................................................. 135
Gambar 4. 87 Uji Coba Perhitungan ROI Produk Berdasarkan ROI Mesin Lama
Modal Kembali 2 Tahun ..................................................................................... 136
Gambar 4. 88 Uji Coba Perhitungan ROI Produk Berdasarkan ROI Mesin Lama
Modal Kembali 3 Tahun ..................................................................................... 137
Gambar 4. 89 Uji Coba Perhitungan ROI Produk Berdasarkan ROI Mesin Lama
Modal Kembali 3 Tahun ..................................................................................... 137
Gambar 4. 90 Uji Coba Perhitungan Markup Berdasarkan ROI Produk Dengan
Lama Modal Kembali 0,5 Tahun ........................................................................ 142
Gambar 4. 91 Uji Coba Perhitungan Markup Berdasarkan ROI Produk Dengan
Lama Modal Kembali 1 Tahun ........................................................................... 142
Gambar 4. 92 Uji Coba Perhitungan Markup Berdasarkan ROI Produk Dengan
Lama Modal Kembali 1,5 Tahun ........................................................................ 143
xviii
Gambar 4. 93 Uji Coba Perhitungan Markup Berdasarkan ROI Produk Dengan
Lama Modal Kembali 2 Tahun ........................................................................... 144
Gambar 4. 94 Uji Coba Perhitungan Markup Berdasarkan ROI Produk Dengan
Lama Modal Kembali 2,5 Tahun ........................................................................ 144
Gambar 4. 95 Uji Coba Perhitungan Markup Berdasarkan ROI Produk Dengan
Lama Modal Kembali 3 Tahun ........................................................................... 145
Gambar 4. 96 Uji Coba Perhitungan Harga Jual Produk Berdasarkan Lama Modal
Kembali 0,5 Tahun .............................................................................................. 148
Gambar 4. 97 Uji Coba Perhitungan Harga Jual Produk Berdasarkan Lama Modal
Kembali 1 Tahun ................................................................................................. 148
Gambar 4. 98 Uji Coba Perhitungan Harga Jual Produk Berdasarkan Lama Modal
Kembali 1,5 Tahun .............................................................................................. 149
Gambar 4. 99 Uji Coba Perhitungan Harga Jual Produk Berdasarkan Lama Modal
Kembali 2 Tahun ................................................................................................. 150
Gambar 4. 100 Uji Coba Perhitungan Harga Jual Produk Berdasarkan Lama
Modal Kembali 2,5 Tahun .................................................................................. 150
Gambar 4. 101 Uji Coba Perhitungan Harga Jual Produk Berdasarkan Lama
Modal Kembali 3 Tahun ..................................................................................... 151
xix
DAFTAR TABEL
Tabel 1. 1 Data penjualan PT. Sinar Baja Hutama ................................................. 3
Tabel 3. 1 Daftar Pertanyaan ................................................................................. 17
Tabel 3. 2 Tabel Identifikasi Masalah ................................................................... 21
Tabel 3. 3 Detil Aktiva Tidak Lancar ................................................................... 27
Tabel 3. 4 Tabel Data Biaya Administrasi dan Penjualan .................................... 28
Tabel 3. 5 Contoh Laporan Laba Yang Diharapkan ............................................. 32
Tabel 3. 6 Contoh Laporan Markup ...................................................................... 32
Tabel 3. 7 Contoh Laporan Harga Jual Produk ..................................................... 33
Tabel 3. 8 Contoh Surat Penawaran ...................................................................... 34
Tabel 3. 9 Tabel Rerata Aktiva Operasional ......................................................... 44
Tabel 3. 10 Tabel Detil Aktiva Operasional ......................................................... 44
Tabel 3. 11 Tabel Jangka Investasi ....................................................................... 45
Tabel 3. 12 Tabel Pelanggan ................................................................................. 45
Tabel 3. 13 Tabel Pelanggan ................................................................................. 45
Tabel 3. 14 Tabel Produk ...................................................................................... 46
Tabel 3. 15 Tabel ROI Jam Mesin ........................................................................ 46
Tabel 3. 16 Tabel ROI Produk .............................................................................. 47
Tabel 3. 17 Tabel Administrasi dan Penjualan ..................................................... 47
Tabel 3. 18 Tabel Detil Administrasi dan Penjualan ............................................ 48
Tabel 3. 19 Tabel Markup ..................................................................................... 48
Tabel 3. 20 Tabel Harga Jual ................................................................................ 48
Tabel 3. 21 Tabel Ketentuan Harga ...................................................................... 49
Tabel 3. 22 Tabel Detil Ketentuan Harga ............................................................. 49
xx
Tabel 3. 23 Desain Uji Coba Fungsional Aplikasi ................................................ 59
Tabel 4. 1 Tabel Kebutuhan Perangkat Keras ....................................................... 69
Tabel 4. 2 Tabel Kebutuhan Perangkat Lunak ...................................................... 69
Tabel 4. 3 Uji Coba Login ..................................................................................... 86
Tabel 4. 4 Uji Coba Data Rerata Aktiva Operasional ........................................... 87
Tabel 4. 5 Uji Coba Data Jangka Investasi ........................................................... 90
Tabel 4. 6 Uji Coba Data Pelanggan ..................................................................... 92
Tabel 4. 7 Uji Coba Data Produk .......................................................................... 95
Tabel 4. 7 Uji Coba Data Ketentuan Harga .......................................................... 98
Tabel 4. 8 Uji Coba Data Administrasi Dan Penjualan ...................................... 100
Tabel 4. 9 Uji Coba Data ROI Mesin .................................................................. 103
Tabel 4. 10 Uji Coba Data Pemesanan................................................................ 107
Tabel 4. 11 Uji Coba Data ROI Produk .............................................................. 110
Tabel 4. 12 Uji Coba Data Markup ..................................................................... 113
Tabel 4. 13 Uji Coba Data Harga Jual ................................................................ 117
Tabel 4. 14 Uji Coba Cetak Laporan .................................................................. 121
Tabel 4. 15 Uji Coba Perhitungan ROI Mesin .................................................... 125
Tabel 4. 16 Uji Coba Perhitungan ROI Produk ................................................. 131
Tabel 4. 17 Uji Coba Perhitungan Markup ......................................................... 138
Tabel 4. 18 Uji Coba Perhitungan Harga Jual Produk ........................................ 145
Tabel 4. 19 Perhitungan Harga Jual Produk Dengan Mengambil Keuntungan 10%
............................................................................................................................. 152
Tabel 4. 20 Perhitungan Harga Jual Produk Dengan Mengambil Keuntungan 40%
............................................................................................................................. 153
xxi
Tabel 4. 21 Evaluasi Perhitungan ROI Jam Mesin ............................................. 154
Tabel 4. 22 Evaluasi Perhitungan ROI Produk ................................................... 157
Tabel 4. 23 Evaluasi Perhitungan Markup .......................................................... 159
Tabel 4. 24 Evaluasi Perhitungan Harga Jual Produk Standar............................ 162
xxii
DAFTAR LAMPIRAN
Lampiran 1 Penawaran Produk ........................................................................... 170
Lampiran 2 Daftar Pemesanan ............................................................................ 171
Lampiran 3 Daftar Gaji Karyawan ...................................................................... 172