IFS310: Module 11 Input/Output Design - Physical design of output reports and input forms

IFS310: Module 11 System Boundary

IFS310: Module 11 Output-design Objectives Serve the intended purpose Deliver the right quantity of output Deliver it to the right place Provide output on time Choose the right method

IFS310: Module 11 Types of Outputs Internal outputs stay inside the system to support the system's users and managers External outputs leave the system to trigger actions on the part of their recipients or confirm actions to their recipients –Turnaround outputs are those which are typically implemented as a report eventually re- enters the system as an input

IFS310: Module 11

Types of Outputs Detailed Reports: –Present information with little or no filtering or restrictions. –Some detailed reports are historical in nature. –Detailed reports confirm and document the successful processing of transactions and serve as an audit trail for subsequent management inquiry. Exception Reports: –Filter data before it is presented to the manager as information. –Exception reports only report exceptions to some condition or standard.

IFS310: Module 11

Output Media Paper Screen Microfilm/Microfiche Video/Audio CDROM, DVD Other electronic media

IFS310: Module 11 Output Formats Tabular output Zoned output Graphic output Narrative output

IFS310: Module 11 System User Issues for Output Design Be aware of output bias. Computer outputs should be simple to read and interpret. The timing of computer outputs is important. The distribution of computer outputs must be sufficient to assist all relevant system users. The computer outputs must be acceptable to the system users who will receive them -> Need for training.

IFS310: Module 11

Designing Effective Input

IFS310: Module 11 Input Methods Batch input –Key-to-disk (KTD) and key-to-tape (KTT) On-line input –graphical user interface (GUI) –Remote batch

IFS310: Module 11 Trends in Automatic Data Collection Technology Biometric ADC Electromagnetic (radio) Magnetic (MICR) Optical (Bar coding ) –optical-mark reader (OMR) or optical- character reader (OCR) Smart Cards Touch

IFS310: Module 11 System User Issues for Input Design Capture only variable data. Do not capture data that can be calculated or stored in computer programs. Use codes for appropriate attributes.

IFS310: Module 11

Internal Controls for Inputs To ensure that the data input to the computer is accurate and that the system is protected against accidental and intentional errors and abuse, including fraud Completeness checks Limit and range checks Combination checks

IFS310: Module 11 How to Prototype & Design Computer Inputs Step 1: Review Input Requirements Step 2: Select the GUI Controls Step 3: Prototype the Input Screen Step 4: If Necessary, Design or Prototype the Source Document

IFS310: Module

Example

IFS310: Module 11

Milestone 6: Input/Output Design Sample reports: outputs created from your prototype system OR your design Sample Input forms (screen shots)