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Documentation Techniques

Documentation Techniques. Introduction. The chapter discusses the following three documentation tools: Document flowcharts Computer system flowcharts Program flowcharts. Flowcharts.

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Documentation Techniques

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  1. Documentation Techniques

  2. Introduction • The chapter discusses the following three documentation tools: • Document flowcharts • Computer system flowcharts • Program flowcharts

  3. Flowcharts • A flowchart is an analytical technique used to describe some aspect of an information system in a clear, concise, and logical manner. • Flowcharts use a standard set of symbols to pictorially describe transaction processing procedures.

  4. Flowchart Symbols • Flowcharting symbols can be divided into the following four categories: • Input/output symbols • Processing symbols • Storage symbols • Flow and miscellaneous symbols

  5. Document Online keying Display Input/output; Journal/ledger Flowcharting Symbols: Some Input Output Symbols Symbol Name

  6. Manual operations Computer processing Auxiliary operation Flowchart Symbols:Some Processing Symbols Symbol Name

  7. Magnetic disk Magnetic tape Flowchart Symbols: Some Storage Symbols Symbol Name

  8. Document or processing flow On-page connector Off-page connector Terminal Decision Flowchart Symbols: Some Flow and Miscellaneous Symbols Symbol Name

  9. What are Document Flowcharts? • A document flowchart illustrates the flow of documents and information between areas of responsibility within an organization. • A document flowchart is particularly useful in analyzing the adequacy of control procedures. • Flowcharts that describe and evaluate internal controls are often referred to as internalcontrol flowcharts.

  10. Document Flowcharts • Flowcharts are pictorial representations of transaction processing systems that portray flows of some type • ADocument Flowchartemphasizes the hardcopy inputs and outputs and their flows through organizational units • Auditors and accountants may use document flowcharts when analyzing a current system for weaknesses in controls and reports

  11. Punched Card Floppy Disk Keying operation Manual Operation Document Connector between two points on a flowchart Multiple copies of a specific document Journal or ledger Common Document Flowcharting Symbols - I

  12. Permanent file of documents Envelope Information flow Adding machine tape used for batch control Document flow Annotation for additional explanation Common Document Flowcharting Symbols - II

  13. A 1 2 Goods Requisition Form 1 GoodsRequisition Form A File A Sample Document Flowchart Requesting Department Central Supplies Department

  14. What are System Flowcharts? • Systemflowchartsdepict the relationship among the input, processing, and output of an AIS. • A system flowchart begins by identifying both the inputs that enter the system and their origins. • The input is followed by the processing portion of the flowchart.

  15. System Flowcharts • System Flowchartsdepict the flows of data and processing steps in an AIS • They use symbols that are industry conventions standardized by the American National Standards Institute (ANSI) • Flowcharting symbols are grouped as input-output symbols, processing symbols, storage symbols, data and information flow symbols, and miscellaneous symbols

  16. Punch Card Can also be output. These are rarely used nowadays. Keying Operation Manual Input Document Also output as reports Display General Purpose Input-Output File Used when type of media is unknown or for manual card files, ledgers, batch logs, etc. System Flowchart Symbols Input/Output

  17. Manual Operation Auxiliary Operation Processing Sorting Collate Also known as off-line process System Flowcharting Symbols Processing

  18. Input/Output Punched Card Punched Paper Tape Document Magnetic Disk Magnetic Tape Off-line Storage Online Storage System Flowcharting Symbols Storage

  19. Terminal Can also be an external entity Start/Stop Logic Flow A On-page connector Telecommunication Link Off-page Connector Systems Flowcharting Symbols Connectors

  20. Data Preparation Communication Link Termination Can also be an external entity System Flowcharting Symbols Miscellaneous - I

  21. Bridge for crossing flows Annotation for additional explanation Batch total - any total Goods; e.g., inventory shipment System Flowcharting Symbols Miscellaneous - II

  22. What are ComputerSystem Flowcharts? • The resulting new information is the output component. • System flowcharts are an important tool of system analysis, design, and evaluation.

  23. Contoh System Flowchart

  24. Input Process Storage Output What are ComputerSystem Flowcharts?

  25. What are Program Flowcharts? • A program flowchart describes the specific logic to perform a process shown on a systems flowchart. • A flow line connects the symbols and indicates the sequence of operations. • The processing symbol represents a data movement or arithmetic calculation.

  26. What are Program Flowcharts? Input data No If a condition is met Yes Perform calculation Update record

  27. What are Program Flowcharts? • The input/output symbol represents either reading of input or writing of output. • The decision symbol represents a comparison of one or more variables and the transfer of flow to alternative logic paths. • All points where the flow begins or ends are represented by the terminal symbol.

  28. Enter sales order Start Reject order No Approved for credit? Yes Back- order No Inventory available? Yes Fill order Stop Flowchart for ProcessingCredit Orders

  29. Differences BetweenDFDs and Flowcharts • DFDs emphasize the flow of data and what is happening in a system, whereas a flowchart emphasizes the flow of documents or records containing data. • A DFD represents the logical flow of data, whereas a flowchart represents the physical flow of data.

  30. Differences BetweenDFDs and Flowcharts • Flowcharts are used primarily to document existing systems. • DFDs, in contrast, are primarily used in the design of new systems and do not concern themselves with the physical devices used to process, store, and transform data.

  31. Differences BetweenDFDs and Flowcharts • DFDs make use of only four symbols. • Flowcharts use many symbols and thus can show more detail.

  32. Sample case Context Diagram

  33. DFD level 0

  34. Document Flowchart

  35. Pedoman menggambar flowchart • Bagan alir sebaiknya digambar dari atas ke bawah dan mulai dari bagian kiri dari suatu halaman. • Kegiatan di dalam bagan alir harus ditunjukkan dengan jelas. • Harus ditunjukkan dari mana kegiatan akan dimulai dan dimana akan berakhirnya. • Masing-masing kegiatan di dalam bagan alir sebaiknya digunakan suatu kata yang mewakili suatu pekerjaan, misalnya: "Persiapkan" dokumen, "Hitung" gaji • Masing-masing kegiatan di dalam bagan alir harus di dalam urutan yang semestinya. • Kegiatan yang terpotong dan akan disambung di tempat lain harus ditunjukkan dengan jelas menggunakan simbol penghubung. • Gunakanlah simbol-simbol bagan alir yang standar

  36. Exercise 1 DFD Level 1 DFD Level 0

  37. Exercise 1 DFD Level 1 DFD Level 0

  38. Exercise 2 - Gambarkan Document flowchart • Prosedur pendaftaran member pada “BUGAR Sport Center”adalah sebagai berikut: • Calon member mengisi formulir pendaftaran dan memilih tipe member, kemudian menyerahkan formulir yang telah diisi ke bagian pelayanan. Setelah itu bagian pelayanan melakukan pengecekan terhadap form yang telah diisi, apabila datanya tidak lengkap maka form akan dikembalikan kepada member untuk dilengkapi, apabila data yang diisi pada form tersebut sudah lengkap maka calon member membayar biaya registrasi. Kemudian bagian pelayanan mencatat data member dan tipe member yang dipilih untuk dibuatkan kartu anggota berikut kwitansi pembayarannya. Kartu anggota dan kwitansi pembayaran akan diberikan kepada calon member.

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