UNIVERSITAS BINA NUSANTARA
Jurusan Ilmu Komputer Program Studi Komputerisasi Akuntansi Skripsi Sarjana Komputer Semester Genap Tahun 2004
ANALISIS DAN PERANCANGAN SISTEM INFORMASI PEMBELIAN, PERSEDIAAN DAN PENJUALAN TUNAI PADA PT TRISATYA MITRA ABADI Tommi Khrisna Wiedhawan 0400508434 Isri Made Mario 0400510855 Kelas / Kelompok : 08 PBA / 03 Abstrak PT.Trisatya Mitra Abadi merupakan suatu perusahaan yang bergerak dibidang penjualan hardware, aksesoris, servis perbaikan dan jasa perakitan komputer. Perusahaan ini memiliki masalah pada sistem informasi pembelian, persediaan, dan penjualan yang sedang berjalan. Masalah yang terjadi berkaitan dengan laporan yang kurang lengkap bagi pihak manajemen dan ketidakpuasan pada pihak customer. Tujuan dari penulisan skripsi ini adalah menganalisa dan merancang sistem informasi yang dapat membantu dan memberi kemudahan bagi pihak manajemen dalam membuat perencanaan strategik. Metodologi yang digunakan adalah metode analisis dan metode perancangan. Metode ini diperlukan untuk membantu dalam perancangan sistem informasi pembelian, persediaan dan penjualan pada PT.Trisatya Mitra Abadi. Hasil penelitian yang dilakukan pada sistem informasi pembelian, persediaan dan penjualan yang sedang berlangsung pada PT.Trisatya Mitra Abadi terdapat beberapa kelemahan. Adanya kelemahan ini dapat menimbulkan masalah yang akan mengganggu kegiatan operasional perusahaan. Dengan adanya sistem yang baru diusulkan dapat menyempurnakan sistem yang lama, sehingga dapat meningkatkan mutu dari sistem informasi yang ada, dan dapat mendukung proses pengambilan keputusan yang dibutuhkan oleh manajemen melalui informasi yang diperolehnya. Kata Kunci : Sistem Informasi, Analisa, Perancangan, Penjualan, Persediaan dan Pembelian
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PRAKATA
Puji syukur kepada Tuhan Yang Maha Esa atas berkat dan rahmat-Nya sehingga penulis dapat menyelesaikan skripsi yang berjudul “ANALISIS DAN PERANCANGAN SISTEM INFORMASI PEMBELIAN, PERSEDIAAN DAN PENJUALAN TUNAI PADA PT. TRISATYA MITRA ABADI”. Adapun penulisan skripsi ini merupakan salah satu syarat dalam menyelesaikan jenjang studi S1 pada Universitas Bina Nusantara, Jakarta. Pada kesempatan ini penulis ingin mengucapkan banyak terima kasih kepada semua pihak yang telah memberikan bantuan dan dukungan baik dalam doa, moril maupun materiil sehingga penulis dapat menyelesaikan skripsi ini. Hormat dan terima kasih penulis berikan kepada : 1. Ibu Dr. Theresia Widia Soeryaningsih selaku Rektor Universitas Bina Nusantara, Jakarta. 2. Bapak Idris Gautama, S.E, S.Kom, MM selaku Ketua Program Studi Komputerisasi Akuntansi Universitas Bina Nusantara, Jakarta. 3. Bapak Djon Irwanto, S.Kom.,MM selaku Dosen Pembimbing. 4. Bapak Muklim selaku Operational Manager pada PT. Trisatya Mitra Abadi. 5. Para kepala bagian dan seluruh karyawan PT. Trisatya Mitra Abadi yang turut membantu memberikan informasi yang berguna dalam menyelesaikan skripsi ini. 6. Orangtua kami tercinta, adik dan kakak yang selama ini telah memberikan banyak dukungan. 7. Teman-teman yang mendukung penulis selama proses penyelesaian skripsi ini. 8. Pihak-pihak lain, yang tidak dapat disebutkan namanya satu persatu. vi
Akhir kata, penulis berharap agar skripsi ini dapat bermanfaat bagi pihak-pihak yang membutuhkan dan mahasiswa yang akan mengambil skripsi Analisis dan Perancangan Sistem Informasi maupun bagi setiap pembaca sekalian.
Jakarta, Juni 2004
Penulis
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DAFTAR ISI
Halaman Judul Luar...........................................................................................................i Halaman Judul Dalam.......................................................................................................ii Halaman Persetujuan Hardcover.................................................................................... .iii Halaman Pernyataan Dewan Penguji................................................................................iv Abstrak..............................................................................................................................vi Prakata..............................................................................................................................vii Daftar Isi...........................................................................................................................ix Daftar Gambar.................................................................................................................xiv Daftar Tabel....................................................................................................................xvii BAB 1 PENDAHULUAN........................................................................……………..…1 1.1 Latar Belakang .............................................................................................1 1.2 Ruang Lingkup Penelitian ............................................................................2 1.3 Tujuan dan Manfaat......................................................................................3 1.3.1 Tujuan dari penulisan skripsi ini adalah .............................................3 1.3.2 Manfaat yang ingin dicapai dalam penulisan skripsi ini adalah..........3 1.3.2.1 Manfaat bagi perusahaan ........................................................3 1.3.2.2 Manfaat bagi penulis ...............................................................3 1.4 Metode yang digunakan ...............................................................................4 1.4.1 Analisis................................................................................................4 1.4.2 Perancangan ........................................................................................4 1.4.3 Riset Pustaka 2 tahap...........................................................................4
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1.5 Sistematika Penulisan...................................................................................5 BAB 2 LANDASAN TEORI .......................................................................................... 7 2.1 Teori Umum .................................................................................................7 2.1.1. Pengertian Sistem...............................................................................7 2.1.2. Pengertian Informasi ..........................................................................7 2.1.3. Pengertian Sistem Informasi ..............................................................9 2.1.4. Pengertian Sistem Informasi Manajemen ..........................................9 2.2 Analisis Sistem dan Perancangan Sistem..................................................10 2.2.1. Pengertian Analisis Sistem...............................................................10 2.2.2. Pengertian Perancangan Sistem .......................................................11 2.3 Object Oriented Analysis dan Design (OOAD) .........................................13 2.3.1 Object ................................................................................................13 2.3.2 Object Oriented .................................................................................13 2.3.3 Object Oriented Analysis (OOA).......................................................14 2.3.4 Object Oriented Design (OOD) ........................................................14 2.3.5 Object Oriented Analysis dan Design (OOAD) ................................15 2.3.5.1 Problem Domain Analysis .....................................................17 2.3.5.2 Application Domain Analysis ................................................26 2.3.5.3 Architectural Design..............................................................32 2.3.5.4 Component Design.................................................................38 2.4 Unified Modelling Languange....................................................................47 2.4.1 Definisi Unified Modelling Languange.............................................47 2.4.2 Relasi Unified Modelling Languange ...............................................47
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2.4.3 Diagram Unified Modelling Languange ...........................................49 2.5 Pembelian ...................................................................................................54 2.5.1 Pengertian Pembelian........................................................................54 2.5.2 Fungsi yang Terkait Dengan Sistem Informasi Pembelian...............55 2.5.3 Prosedur yang Membentuk Transaksi Pembelian .............................56 2.6 Persediaan...................................................................................................58 2.6.1 Pengertian persediaan........................................................................58 2.6.2 Faktor-faktor persediaan ...................................................................59 2.6.3 Kebijaksanaan dalam Persediaan ......................................................59 2.6.4 Pengelolaan Persediaan .....................................................................60 2.7 Penjualan Tunai..........................................................................................60 2.7.1 Pengertian Penjualan .........................................................................60 2.7.1.1 Pengertian Sistem Penjualan..................................................61 2.7.1.2 Pengertian Penjualan Tunai ...................................................61 2.7.2 Fungsi-fungsi yang Terkait dengan Penjualan Tunai........................62 BAB 3 ANALISA SISTEM INFORMASI ................................................................... 64 3.1 Riwayat Perusahaan ...................................................................................64 3.2 Struktur Organisasi.....................................................................................66 3.3 Prosedur yang Sedang Berjalan..................................................................71 3.3.1 Sistem yang Sedang Berjalan............................................................71 3.3.2 Rich Picture dari Sistem yang Sedang Berjalan...............................74 3.4 Permasalahan yang Dihadapi .....................................................................75 3.5 Pemecahan Masalah ...................................................................................76
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3.6 Perancangan Sistem yang Diusulkan .........................................................77 3.6.1 System Definition...............................................................................77 3.6.2 Rich Picture dari Sistem yang diusulkan .........................................80 3.6.3 Factor Criterion ................................................................................82 3.6.4 Context ..............................................................................................82 3.6.4.1 Problem Domain....................................................................82 3.6.4.2 Application Domain ...............................................................83 3.7 Problem Domain Analysis..........................................................................84 3.7.1 Class Candidate dan Class................................................................84 3.7.2 Event candidate dan event.................................................................86 3.7.3 Class Diagram...................................................................................90 3.7.4 Behavioral Pattern ............................................................................90 3.8 Application Domain Analysis.....................................................................97 3.8.1 Usage.................................................................................................97 3.8.1.1 Actor Specification.................................................................98 3.8.1.2 Base Use Case Description....................................................99 3.8.2 Sequence Diagram ..........................................................................118 3.8.3 Function List ...................................................................................130 3.8.4 User Interface..................................................................................132 3.8.4.1 Determine User-Interface Elements ....................................132 3.8.4.2 Navigation Diagram ............................................................146 3.8.4.3 User Interface.......................................................................147 BAB 4 PERANCANGAN SISTEM INFORMASI ..................................................... 170
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4.1 Model Component Design ........................................................................170 4.1.1 Revised Class...................................................................................170 4.1.2 Model Component ...........................................................................178 4.2 Function Component ................................................................................179 4.2.1 Model Class Placement...................................................................179 4.2.2 Function Class Placement...............................................................180 4.2.3 Operation Specification...................................................................180 4.3 Architecture Design..................................................................................182 4.3.1 Criteria ............................................................................................182 4.3.2 Component Architecture .................................................................183 4.3.2.1 Generic Architecture Pattern...............................................183 4.3.2.2 Client Server Architecture Pattern ......................................184 4.3.3 Processes Architecture....................................................................185 4.3.3.1 Deployment Diagram for Software......................................185 4.3.3.2 Deployment Diagram for Hardware....................................186 BAB 5 SIMPULAN DAN SARAN ............................................................................. 188 5.1 Simpulan...................................................................................................188 5.2 Saran.........................................................................................................189 DAFTAR PUSTAKA RIWAYAT HIDUP LAMPIRAN – LAMPIRAN FOTOCOPY SURAT SURVEI
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DAFTAR GAMBAR
Gambar 2.1 Definisi dari aktivitas pengembangan ........................................................ 15 Gambar 2.2 Komponen sistem arsitektur dasar............................................................. 16 Gambar 2.3 Aktivitas dalam Object-Oriented Analysis and Design.............................. 17 Gambar 2.4 Aktivitas dalam Problem domain Analysis ................................................ 18 Gambar 2.5 Subaktivitas dalam pemilihan problem domain classes dan events ........... 18 Gambar 2.6 Generalization structure............................................................................. 20 Gambar 2.7 Cluster Structure......................................................................................... 21 Gambar 2.8 Aggregation structure................................................................................ 22 Gambar 2.9 Association structure .................................................................................. 24 Gambar 2.10 Sequence .................................................................................................. 25 Gambar 2.11 Selection................................................................................................... 25 Gambar 2.12 Iteration ................................................................................................... 25 Gambar 2.13 Aktivitas dalam Application Domain Analysis........................................ 27 Gambar 2.14 Sub-aktivitas dari Use case....................................................................... 28 Gambar 2.15 aktivitas dalam architectural design…………..………………………………33 Gambar 2.16 Subaktivitas dalam model component ...................................................... 39 Gambar 2.17 Subaktivitas pada function component design.......................................... 42 Gambar 2.18 Connection by class aggregation ............................................................. 44 Gambar 2.19 Connection by class specialization........................................................... 44
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Gambar 2.20 Connection by calling an operation ......................................................... 45 Gambar 2.21 Subactivities in designing the connections between component .............. 45 Gambar 2.22 Relasi Dependency ................................................................................... 47 Gambar 2.23 Relasi Generalization ............................................................................... 48 Gambar 2.24 Relasi Association..................................................................................... 48 Gambar 2.26 Class Diagram.......................................................................................... 49 Gambar 2.27 use case diagram ...................................................................................... 50 Gambar 2.28 activity diagram........................................................................................ 51 Gambar 2.29 sequence diagram ..................................................................................... 52 Gambar 2.30 statechart diagram.................................................................................... 52 Gambar 2.31 Collaboration Diagram ............................................................................ 53 Gambar 2.32 component dan deployment diagram........................................................ 54 Gambar 2.33 Jaringan prosedur dalam sistem pembelian……………………………...58 Gambar 3.1 Struktur Organisasi PT. Trisatya Mitra Abadi............................................ 67 Gambar 3.2 Rich Picture dari sistem yang berjalan ....................................................... 74 Gambar 3.3 Rich Picture dari Rancangan Sistem yang Diusulkan ................................ 80 Gambar 3.4 Class Diagram dari Rancangan Sistem yang Diusulkan............................ 90 Gambar 3.5 Behavior Pattern Barang ............................................................................ 91 Gambar 3.6 Behavior Pattern Customer ........................................................................ 91 Gambar 3.7 Behavior Pattern Sales Order .................................................................... 92 Gambar 3.8 Behavior Pattern Purchase Order.............................................................. 93 Gambar 3.9 Behavior Pattern Surat Penyerahan Barang............................................... 94 Gambar 3.10 Behavior Pattern Persediaan barang ........................................................ 94
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Gambar 3.11 Behavior Pattern Supplier ........................................................................ 95 Gambar 3.12 Behavior Pattern Surat Jalan.................................................................... 96 Gambar 3.13 Use Case Diagram.................................................................................... 97 Gambar 3.14 Sequence Diagram Membuat Sales Order.............................................. 119 Gambar 3.15 Sequence Diagram Menghitung Persediaan Barang .............................. 120 Gambar 3.16 Sequence Diagram Mendaftar Customer ............................................... 121 Gambar 3.17 Sequence Diagram Memeriksa Sales Order........................................... 122 Gambar 3.18 Sequence Diagram Membuat Surat Jalan............................................... 123 Gambar 3.19 Sequence Diagram Membuat SPB ......................................................... 124 Gambar 3.20 Sequence Diagram Memeriksa SPB....................................................... 125 Gambar 3.21 Sequence Diagram Membuat Purchase Order........................................ 126 Gambar 3.22 Sequence Diagram Memeriksa Purchase Order..................................... 127 Gambar 3.23 Sequence Diagram Memasukkan Data Barang Masuk ......................... 128 Gambar 3.24 Sequence Diagram Mendaftar Supplier ................................................. 129 Gambar 3.25 Sequence Diagram Mendaftar Barang ................................................... 130 Gambar 3.26 Interface Membuat Sales Order.............................................................. 133 Gambar 3.27 Interface Menghitung Persediaan Barang .............................................. 134 Gambar 3.28 Interface Mendaftar Customer................................................................ 135 Gambar 3.29 Interface Memeriksa Sales Order ........................................................... 136 Gambar 3.30 Interface Membuat SPB ......................................................................... 137 Gambar 3.31 Interface Memeriksa SPB....................................................................... 138 Gambar 3.32 Interface Membuat Purchase Order........................................................ 139 Gambar 3.33 Interface Memeriksa Purchase Order ..................................................... 140
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Gambar 3.34 Interface Memasukkan Data Barang Masuk .......................................... 141 Gambar 3.35 Interface Mendaftar Customer................................................................ 142 Gambar 3.36 Interface Mendaftar Supplier.................................................................. 143 Gambar 3.37 Interface Membuat Surat Jalan............................................................... 144 Gambar 3.38 Interface Mendaftar Barang.................................................................... 145 Gambar 3.39 Navigation Diagram ................................................................................146 Gambar 3.40 Welcome Screen...................................................................................... 147 Gambar 3.41 Form Utama............................................................................................ 147 Gambar 3.42 Form Utama Bagian Penjualan............................................................... 149 Gambar 3.43 Form Utama Bagian Pembelian ............................................................. 151 Gambar 3.44 Form Utama Bagian Operasional ........................................................... 153 Gambar 3.45 Form Utama Bagian Gudang.................................................................. 154 Gambar 3.46 Form Mendaftarkan Supplier ................................................................. 155 Gambar 3.47 Form Mendaftarkan Pelanggan .............................................................. 155 Gambar 3.48 Form Mendaftar Barang ......................................................................... 156 Gambar 3.49 Form Membuat Sales Order ................................................................... 157 Gambar 3.50 Form Membuat Purchase Order ............................................................. 158 Gambar 3.51 Form Membuat SPB............................................................................... 159 Gambar 3.52 Form Memasukkan Data Barang Masuk................................................ 160 Gambar 3.53 Form Membuat Surat Jalan .................................................................... 160 Gambar 3.54 Form Memeriksa Penjualan.................................................................... 161 Gambar 3.55 Form Memeriksa Pembelian .................................................................. 162 Gambar 3.56 Form Memeriksa SPB ............................................................................ 163
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Gambar 3.57 Laporan Penjualan .................................................................................. 164 Gambar 3.58 Laporan Pembelian ................................................................................. 165 Gambar 3.59 Laporan SPB........................................................................................... 166 Gambar 3.60 Laporan Barang Masuk .......................................................................... 167 Gambar 3.61 Laporan Persediaan Barang .................................................................... 168 Gambar 3.62 Message Error ........................................................................................ 168 Gambar 3.63 Message Konfirmasi ............................................................................... 169 Gambar 4.1 Revised Class Barang ..........................................................170 Gambar 4.2 Revised Class Customer .......................................................................... 171 Gambar 4.3 Revised Class Supplier ............................................................................ 172 Gambar 4.4 Revised Class Sales Order....................................................................... 173 Gambar 4.5 Revised Class Purchase Order ................................................................ 174 Gambar 4.6 Revised Class SPB................................................................................... 175 Gambar 4.7 Revised Class Persediaan Barang ............................................................ 176 Gambar 4.8 Revised Class Surat Jalan. ....................................................................... 177 Gambar 4.9 Revised Class Diagram. .......................................................................... 178 Gambar 4.10 Model Class Placement. ......................................................................... 179 Gambar 4.11 Function Class Placement. ..................................................................... 180 Gambar 4.12 Generic Architecture Patern .................................................................. 183 Gambar 4.13 Client Server Architecture Patern .......................................................... 184 Gambar 4.14 Deployment Diagram for Software......................................................... 185 Gambar 4.15 Deployment Diagram for Hardware ...................................................... 186
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DAFTAR TABEL Tabel 3.1 Tabel factor criteria....................................................................................... 81 Tabel 3.2 Class candidate dan Class ............................................................................. 84 Tabel 3.3 Event candidate dan Event............................................................................. 86 Tabel 3.4 Event Table .................................................................................................... 89 Tabel 3.5 Actor Bagian Marketing................................................................................. 98 Tabel 3.6 Actor Kepala Gudang..................................................................................... 98 Tabel 3.7 Actor Bagian Operasional.............................................................................. 98 Tabel 3.8 Actor Bagian Pembelian ................................................................................ 99 Tabel 3.9 Base Use Case Membuat Sales Order........................................................... 99 Tabel 3.10 Base Use Case Menghitung Persediaan Barang ........................................ 101 Tabel 3.11 Base Use Case Mendaftar Customer ......................................................... 102 Tabel 3.12 Base Use Case Memeriksa Sales Order .................................................... 104 Tabel 3.13 Base Use Case Membuat Surat Jalan ........................................................ 106 Tabel 3.14 Base Use Case Membuat SPB ................................................................... 107 Tabel 3.15 Base Use Case Memeriksa SPB ................................................................ 109 Tabel 3.16 Base Use Case Membuat Purchase Order ................................................ 110 Tabel 3.17 Base Use Case Memeriksa Purchase Order.............................................. 112 Tabel 3.18 Base Use Case Memasukkan Data Barang Masuk.................................... 114 Tabel 3.19 Base Use Case Mendaftar Supplier ........................................................... 115 Tabel 3.20 Base Use Case Mendaftar Barang ............................................................. 117 Tabel 3.21 Tabel Function list…………………………………………………………130 Tabel 4.1 Tabel Criteria. ............................................................................................. 182
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