BAB III.doc - BAB III ANALISA DAN PERANCANGAN SISTEM 3.1...

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BAB III ANALISA DAN PERANCANGAN SISTEM 3.1. Analisa Sistem Analisis system bermanfaat untuk memahami suatu system sekaligus mencari dan menilai kelemahan-kelemahannya sehingga dapat dirancang oleh suatu system baru. Analisis system adalah penguraian dari suatu system informasi kedalam bagian komponen-komponen dengan maksud untuk mengidentifikasikan masalah-masalah, kesempatan dan hambatan- hambatan yang terjadi serta kebutuhan-kebutuhan yang diharapkan dapat diusulkan perbaikan-perbaikan. 3.2. Data Flow Diagram (DFD) Adalah bagan alir dari DFD yang menggambarkan keseluruhan kerja system secara garis besar, DFD dibagi menjadi 2 macam yaitu : 1. Data Flow Diagram Contex Level 2. Data Flow Diagram Levelled Sebelum membangun system baru perlu dilakukan perencanaan dan desain system dengan pemodelan. Ada beberapa alasan mengapa harus membuat model system antara lain yaitu :
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