Iwan Abadi, Ir., M. M.  11

 Tatap Muka  Tugas  Studi kasus  Diskusi  22

1. Tugas 2. Quiz 3. Ujian Tengah Semester 4. Ujian Akhir Semester  33

 A : Nilai ≥ 80  B : Nilai ≥ 65 and Nilai < 80  C : Nilai ≥ 56 and Nilai < 65  D : Nilai ≥ 45 and Nilai < 56  E : Nilai < 45  44

 55  APSI  SI  BASIS DATA Analyst systems Algoritma Struktur Data

1. Introductions 2. Information System Development 3. Model and Metode of Process 4. Analysis 5. Design  66

 Mahasiswa dapat, mengerti dan memahami konsep menganalisis dan merancang sistem informasi  Mahasiswa dapat menggunakan tools dalam menganalisis dan merancang sistem informasi  Mahasiswa dapat mengembangkan sistem informasi dengan baik dan benar 77

1. Kenneth E. Kendall, Julie E. Kendall, “System Analysis and Design” 2. Ian ammervile, “software Engineering” 3. Roger S. Pressman, “Software Engineering” 4. Witarto, “Memahami Sistem Informasi” 88

Iwan Abadi, Ir., M. M.  99

 Why Do People Need Information?  Individuals - Entertainment and enlightenment  Businesses - Decision making, problem solving and control   10

 Data vs. Information  Data A “given,” or fact; a number, a statement, or a picture Represents something in the real world The raw materials in the production of information  Information Data that have meaning within a context Data in relationships Data after manipulation   11

 Data Manipulation  Example: customer survey Reading through data collected from a customer survey with questions in various categories would be time-consuming and not very helpful. When manipulated, the surveys may provide useful information.   12

 Generating Information  Computer-based ISs take data as raw material, process it, and produce information as output.   13 Figure 1.1 Input-process-output

 Information in Context   14 Figure 1.2 Characteristics of useful information

 What Is a System?  System: A set of components that work together to achieve a common goal  Subsystem: One part of a system where the products of more than one system are combined to reach an ultimate goal  Closed system: Stand-alone system that has no contact with other systems  Open system: System that interfaces with other systems   15

Sistem adalah kumpulan dari elemen-elemen yang berinteraksi untuk mencapai suatu tujuan tertentu  Karakteristik/Sifat Sistem : 1.Komponen sistem (components) 2.Batas Sistem (boundary) 3.Lingkungan Luar Sistem 4.Penghubung (interface) 5.Masukan (input) 6.Keluaran (output) 7.Pengolah (process) 8.Sasaran(objectives) 9.Tujuan (goal)  Klasifikasi Sistem: 1.Sistem abstrak dan sistem fisik 2.Sistem alamiah dan sistem buatan manusia 3.Sistem tertentu dan sistem tak tentu 4.Sistem tertutup dan sistem terbuka

  17 Figure 1.3 Several subsystems make up this corporate accounting system.

 Information and Managers  Systems thinking Creates a framework for problem solving and decision making. Keeps managers focused on overall goals and operations of business.   18

  19 Figure 1.4 Qualities of humans and computers that contribute to synergy

 The Benefits of Human-Computer Synergy  Synergy When combined resources produce output that exceeds the sum of the outputs of the same resources employed separately  Allows human thought to be translated into efficient processing of large amounts of data   20

  21 Figure 1.5 Components of an information system

 The Four Stages of Data Processing  Input: Data is collected and entered into computer.  Data processing: Data is manipulated into information using mathematical, statistical, and other tools.  Output: Information is displayed or presented.  Storage: Data and information are maintained for later use.   22

 Information Systems Careers  Systems analyst, specialist in enterprise resource planning (ERP), database administrator, telecommunications specialist, consulting, etc.  Knowledge Workers  Managers and non-managers  Employers seek computer-literate professionals who know how to use information technology.  Computer Literacy Replacing Traditional Literacy  Key to full participation in western society   23

Sistem Informasi adalah suatu sistem di dalam suatu organisasi yang mempertemukan kebutuhan pengolahan transaksi harian, mendukung operasi, bersifat manajerial dan kegiatan strategi dari suatu organisasi dan menyediakan pihak luar tertentu dengan laporan- laporan yang diperlukan 

1.Blok Masukan 2.Blok Model 3.Blok Keluaran 4.Blok Teknologi 5.Blok Basis Data 6.Blok Kendali

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