{"id":3702,"date":"2026-04-27T13:58:52","date_gmt":"2026-04-27T05:58:52","guid":{"rendered":"https:\/\/www.go2posts.com\/id\/c4-model-case-study-big-bank-plc-internet-banking-system\/"},"modified":"2026-04-27T13:58:52","modified_gmt":"2026-04-27T05:58:52","slug":"c4-model-case-study-big-bank-plc-internet-banking-system","status":"publish","type":"post","link":"https:\/\/www.go2posts.com\/id\/c4-model-case-study-big-bank-plc-internet-banking-system\/","title":{"rendered":"Studi Kasus Model C4: Sistem Perbankan Internet Big Bank plc"},"content":{"rendered":"

1. Ringkasan Eksekutif<\/h2>\n

Studi kasus ini mendokumentasikan arsitektur dari\u00a0Sistem Perbankan Internet<\/strong>\u00a0untuk\u00a0Big Bank plc<\/strong>. Sistem ini dirancang agar pelanggan perbankan pribadi dapat melihat saldo rekening mereka, melihat riwayat transaksi, dan melakukan pembayaran melalui peramban web dan perangkat mobile.<\/p>\n

Arsitektur ini mengikuti\u00a0Model C4<\/strong>\u00a0(Konteks, Wadah, Komponen, Kode), memberikan tampilan hierarkis sistem dari abstraksi tingkat tinggi hingga infrastruktur penempatan.<\/p>\n

\n

2. Tingkat 1: Diagram Konteks Sistem<\/h2>\n

Tujuan:<\/strong>\u00a0Untuk menunjukkan sistem dalam konteks pengguna dan ketergantungan eksternalnya.<\/p>\n

Diagram Referensi:<\/strong>\u00a0Gambar 4 (Utama) dan Gambar 1 (Tampilan Sederhana).<\/p>\n

Analisis<\/h3>\n

Sistem\u00a0Sistem Perbankan Internet<\/strong>\u00a0berada dalam batas\u00a0Big Bank plc<\/strong>\u00a0perusahaan. Sistem ini berfungsi sebagai saluran digital bagi\u00a0Pelanggan Perbankan Pribadi<\/strong>.<\/p>\n

\"C4<\/p>\n

    \n
  • \n

    Pengguna (Aktor):<\/strong><\/p>\n

      \n
    • \n

      Pelanggan Perbankan Pribadi:<\/strong>\u00a0Pengguna utama yang berinteraksi dengan sistem untuk melihat saldo dan melakukan pembayaran.<\/p>\n<\/li>\n

    • \n

      Staf Layanan Pelanggan:<\/strong>\u00a0Karyawan bank yang membantu pelanggan (ditampilkan pada Gambar 4).<\/p>\n<\/li>\n

    • \n

      Staf Back Office:<\/strong>\u00a0Staf administrasi dan pendukung (ditampilkan pada Gambar 4).<\/p>\n<\/li>\n<\/ul>\n<\/li>\n

    • \n

      Sistem Eksternal:<\/strong><\/p>\n

        \n
      • \n

        Sistem Perbankan Mainframe:<\/strong>\u00a0Sistem rujukan. Menyimpan semua informasi inti perbankan (pelanggan, rekening, transaksi). Sistem Perbankan Internet bergantung pada ini untuk data yang otoritatif.<\/p>\n<\/li>\n

      • \n

        Sistem E-mail:<\/strong>\u00a0Sistem Microsoft Exchange internal yang digunakan untuk mengirim notifikasi (misalnya, pengaturan ulang kata sandi, konfirmasi) kepada pelanggan.<\/p>\n<\/li>\n

      • \n

        ATM:<\/strong>\u00a0Sistem perangkat lunak terpisah yang memungkinkan penarikan tunai (ditampilkan dalam Gambar 4 untuk menunjukkan ekosistem yang lebih luas).<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n

        Hubungan Kunci:<\/strong>\u00a0Pelanggan berinteraksi dengan Sistem Perbankan Internet, yang kemudian berperan sebagai antarmuka terhadap sistem Mainframe lama untuk mengambil data dan memproses pembayaran.<\/p>\n

        \n

        3. Tingkat 2: Diagram Container<\/h2>\n

        Tujuan:<\/strong>\u00a0Menunjukkan pilihan teknologi tingkat tinggi dan bagaimana tanggung jawab didistribusikan di seluruh sistem.<\/p>\n

        Diagram Referensi:<\/strong>\u00a0Gambar 2.<\/p>\n

        Analisis<\/h3>\n

        Sistem \u2018Perbankan Internet\u2019 dari Tingkat 1 diuraikan menjadi lima container yang berbeda (unit yang dapat di-deploy).<\/p>\n

        \"C4<\/p>\n

          \n
        1. \n

          Aplikasi Web (Java dan Spring MVC):<\/strong><\/p>\n

            \n
          • \n

            Peran:<\/strong>\u00a0Berfungsi sebagai titik masuk bagi pengguna web.<\/p>\n<\/li>\n

          • \n

            Fungsi:<\/strong>\u00a0Mengirimkan konten statis (HTML\/CSS\/JS) dan Aplikasi Halaman Tunggal (SPA) ke browser pelanggan melalui HTTPS.<\/p>\n<\/li>\n<\/ul>\n<\/li>\n

          • \n

            Aplikasi Halaman Tunggal (JavaScript dan Angular):<\/strong><\/p>\n

              \n
            • \n

              Peran:<\/strong>\u00a0Logika sisi klien yang berjalan di browser.<\/p>\n<\/li>\n

            • \n

              Fungsi:<\/strong>\u00a0Menyediakan seluruh suite fungsi perbankan internet. Melakukan panggilan API ke backend.<\/p>\n<\/li>\n<\/ul>\n<\/li>\n

            • \n

              Aplikasi Mobile (Xamarin):<\/strong><\/p>\n

                \n
              • \n

                Peran:<\/strong>\u00a0Aplikasi sisi klien untuk perangkat mobile.<\/p>\n<\/li>\n

              • \n

                Fungsi:<\/strong>Menyediakan subset fungsionalitas terbatas dibandingkan dengan aplikasi web. Ini juga melakukan panggilan API ke backend.<\/p>\n<\/li>\n<\/ul>\n<\/li>\n

              • \n

                Aplikasi API (Java dan Spring MVC):<\/strong><\/p>\n

                  \n
                • \n

                  Peran:<\/strong>Logika inti backend.<\/p>\n<\/li>\n

                • \n

                  Fungsi:<\/strong>Menyediakan API JSON\/HTTPS. Menangani otentikasi, logika bisnis, dan komunikasi dengan sistem eksternal (Database, Mainframe, Email).<\/p>\n<\/li>\n<\/ul>\n<\/li>\n

                • \n

                  Database (Skema Oracle Database):<\/strong><\/p>\n

                    \n
                  • \n

                    Peran:<\/strong>Ketahanan data.<\/p>\n<\/li>\n

                  • \n

                    Fungsi:<\/strong>Menyimpan informasi pendaftaran pengguna, kredensial yang di-hash, dan log akses.Catatan: Data inti perbankan tetap berada di Mainframe.<\/em><\/p>\n<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n

                    Hubungan Kunci:<\/strong>Baik Aplikasi Web (melalui SPA) maupun Aplikasi Mobile berkomunikasi denganAplikasi API<\/strong>. Aplikasi API kemudian berbicara denganDatabase<\/strong>untuk data lokal danMainframe<\/strong>untuk data perbankan inti.<\/p>\n

                    \n

                    4. Tingkat 3: Diagram Komponen<\/h2>\n

                    Tujuan:<\/strong>Untuk memperbesar fokus pada wadah tertentu (Aplikasi API) untuk menunjukkan blok bangun internalnya.<\/p>\n

                    Diagram Referensi:<\/strong>Gambar 3.<\/p>\n

                    Analisis<\/h3>\n

                    Diagram ini memecahAplikasi API<\/strong>wadah menjadi komponen-komponen logis.<\/p>\n

                    \"C4<\/p>\n

                      \n
                    • \n

                      Controller (Controller Rest Spring MVC):<\/strong>\u00a0Ini menangani permintaan HTTP masuk.<\/p>\n

                        \n
                      • \n

                        Kontroler Masuk:<\/strong>\u00a0Menangani otentikasi pengguna.<\/p>\n<\/li>\n

                      • \n

                        Kontroler Atur Ulang Kata Sandi:<\/strong>\u00a0Menangani alur pemulihan kata sandi.<\/p>\n<\/li>\n

                      • \n

                        Kontroler Ringkasan Akun:<\/strong>\u00a0Mengambil data akun untuk pengguna.<\/p>\n<\/li>\n<\/ul>\n<\/li>\n

                      • \n

                        Komponen (Spring Beans):<\/strong>\u00a0Ini berisi logika bisnis.<\/p>\n

                          \n
                        • \n

                          Komponen Keamanan:<\/strong>\u00a0Menangani masuk dan mengganti kata sandi. Digunakan oleh kontroler Masuk dan Atur Ulang Kata Sandi.<\/p>\n<\/li>\n

                        • \n

                          Komponen Surel:<\/strong>\u00a0Menangani pengiriman surel. Digunakan oleh kontroler Atur Ulang Kata Sandi.<\/p>\n<\/li>\n

                        • \n

                          Facade Sistem Perbankan Mainframe:<\/strong>\u00a0Pelapis di sekitar sistem Mainframe eksternal. Ini menerjemahkan panggilan API internal ke format XML\/HTTPS yang dibutuhkan oleh Mainframe lama. Digunakan oleh kontroler Ringkasan Akun.<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n

                          Hubungan Kunci:<\/strong>\u00a0The\u00a0Kontroler Ringkasan Akun<\/strong>\u00a0menggunakan\u00a0Facade Sistem Perbankan Mainframe<\/strong>\u00a0untuk mendapatkan data dari Mainframe eksternal, menunjukkan pemisahan tanggung jawab antara lapisan API dan lapisan integrasi.<\/p>\n

                          \n

                          5. Tingkat 4: Diagram Penempatan<\/h2>\n

                          Tujuan:<\/strong>\u00a0Menunjukkan bagaimana kontainer perangkat lunak dipetakan ke infrastruktur fisik.<\/p>\n

                          Diagram Referensi:<\/strong>\u00a0Gambar 5.<\/p>\n

                          Analisis<\/h3>\n

                          Diagram ini menggambarkan lingkungan runtime.<\/p>\n

                          \"C4<\/p>\n

                            \n
                          • \n

                            Sisi Pelanggan:<\/strong><\/p>\n

                              \n
                            • \n

                              Perangkat Mobile:<\/strong>\u00a0Menjalankan Aplikasi Seluler (iOS\/Android).<\/p>\n<\/li>\n

                            • \n

                              Komputer:<\/strong>\u00a0Menjalankan Peramban Web (Chrome\/Firefox\/Safari\/Edge) yang menampung Aplikasi Halaman Tunggal.<\/p>\n<\/li>\n<\/ul>\n<\/li>\n

                            • \n

                              Pusat Data Big Bank plc:<\/strong><\/p>\n

                                \n
                              • \n

                                Server Web (bigbank-web<\/strong>*):** Node Ubuntu 16.04 LTS yang menjalankan\u00a0Apache Tomcat 8.x<\/strong>.<\/p>\n

                                  \n
                                • \n

                                  Menampung\u00a0Aplikasi Web<\/strong>\u00a0dan\u00a0Aplikasi API<\/strong>.<\/p>\n<\/li>\n<\/ul>\n<\/li>\n

                                • \n

                                  Server Basis Data (bigbank-db01\/02):<\/strong>\u00a0Node Ubuntu 16.04 LTS yang menjalankan\u00a0Oracle 12c<\/strong>.<\/p>\n

                                    \n
                                  • \n

                                    Oracle \u2013 Utama:<\/strong>\u00a0Basis data utama.<\/p>\n<\/li>\n

                                  • \n

                                    Oracle \u2013 Sekunder:<\/strong>\u00a0Salinan untuk redundansi\/kenyamanan tinggi.<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n

                                    Hubungan Kunci:<\/strong>\u00a0Aplikasi Seluler dan Peramban Web terhubung melalui internet ke\u00a0Aplikasi API<\/strong>\u00a0yang dijalankan di Tomcat. Aplikasi API terhubung melalui JDBC ke klaster Basis Data Oracle.<\/p>\n

                                    \n

                                    6. Konsep dan Panduan Kunci yang Diterapkan<\/h2>\n

                                    Berdasarkan studi kasus ini, prinsip pemodelan C4 berikut diterapkan:<\/p>\n

                                      \n
                                    1. \n

                                      Tingkat Abstraksi:<\/strong>\u00a0Model ini berhasil bergerak dari \u201cSiapa yang menggunakannya?\u201d (Konteks) ke \u201cApa yang dibangun dari?\u201d (Wadah) ke \u201cBagaimana disusun?\u201d (Komponen) ke \u201cDi mana berjalan?\u201d (Penempatan).<\/p>\n<\/li>\n

                                    2. \n

                                      Batasan Lingkup:<\/strong><\/p>\n

                                        \n
                                      • \n

                                        Pada Level 1, batas ‘Big Bank plc’ dengan jelas membedakan sistem internal dari aktor eksternal.<\/p>\n<\/li>\n

                                      • \n

                                        Pada Level 2, batas ‘Sistem Perbankan Internet’ mengemas perangkat lunak tertentu yang sedang dibangun, memisahkannya dari Mainframe lama.<\/p>\n<\/li>\n<\/ul>\n<\/li>\n

                                      • \n

                                        Pemisahan Kepentingan:<\/strong><\/p>\n

                                          \n
                                        • \n

                                          Frontend vs. Backend:<\/strong>Pemisahan Aplikasi Satu Halaman (frontend) dari Aplikasi API (backend) memungkinkan pengembangan dan skalabilitas yang independen.<\/p>\n<\/li>\n

                                        • \n

                                          Pemisahan Data:<\/strong>Data inti perbankan yang sensitif disimpan di Mainframe, sementara Sistem Perbankan Internet hanya menyimpan sementara data akses pengguna yang diperlukan di basis data Oracle miliknya sendiri.<\/p>\n<\/li>\n<\/ul>\n<\/li>\n

                                        • \n

                                          Netral terhadap Teknologi (jika sesuai):<\/strong>Diagram menentukan teknologi (Java, Angular, Oracle) di tempat yang relevan terhadap keputusan arsitektur, tetapi terutama berfokus pada\u00a0hubungan<\/em>dan\u00a0tanggung jawab<\/em>blok-blok tersebut.<\/p>\n<\/li>\n

                                        • \n

                                          Notasi:<\/strong>Notasi C4 standar digunakan:<\/p>\n

                                            \n
                                          • \n

                                            Orang:<\/strong>Gambar orang batang (atau lingkaran dalam gaya tampilan khusus ini).<\/p>\n<\/li>\n

                                          • \n

                                            Sistem Perangkat Lunak\/Kontainer\/Komponen:<\/strong>Persegi panjang melengkung dengan warna berbeda (Biru untuk internal\/utama, Abu-abu untuk eksternal\/sekunder).<\/p>\n<\/li>\n

                                          • \n

                                            Hubungan:<\/strong>Panah putus-putus dengan label yang menjelaskan protokol (misalnya, [HTTPS], [JSON], [JDBC]).<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"

                                            1. Ringkasan Eksekutif Studi kasus ini mendokumentasikan arsitektur dari\u00a0Sistem Perbankan Internet\u00a0untuk\u00a0Big Bank plc. Sistem ini dirancang agar pelanggan perbankan pribadi dapat melihat saldo rekening mereka, melihat riwayat transaksi, dan melakukan…<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_title":"","_yoast_wpseo_metadesc":"","fifu_image_url":"","fifu_image_alt":"","footnotes":""},"categories":[83,84,87],"tags":[],"class_list":["post-3702","post","type-post","status-publish","format-standard","hentry","category-ai","category-ai-chatbot","category-c4-model"],"yoast_head":"\nStudi Kasus Model C4: Sistem Perbankan Internet Big Bank plc - Go 2 Posts Indonesian | Breaking Digital News & Software Trends<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.go2posts.com\/id\/c4-model-case-study-big-bank-plc-internet-banking-system\/\" \/>\n<meta property=\"og:locale\" content=\"id_ID\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Studi Kasus Model C4: Sistem Perbankan Internet Big Bank plc - Go 2 Posts Indonesian | Breaking Digital News & Software Trends\" \/>\n<meta property=\"og:description\" content=\"1. Ringkasan Eksekutif Studi kasus ini mendokumentasikan arsitektur dari\u00a0Sistem Perbankan Internet\u00a0untuk\u00a0Big Bank plc. 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