Timeliness Timeliness refers to Data needs to be inputted A sales manager, may be when users need to computer in time requiring a weekly sales outputs, which may be because outputs cannot be report. Other users, such as required on a regular, produced until certain airline agents, require both periodic basis - inputs are available. real- time information and perhaps daily, weekly, Hence, a plan must be rapid response times in order monthly, at the of established regarding to render better client quarter or annually. when different types of service. inputs will enter system. Format Input format refers to After the data contents and Format of information the manner in which media requirements are reports for the users data are physically determined, input formats should be so devised that arranged. are designed on the basis of it assists in few constraints like - the decision-making, identifying type and length of each and solving problems, Output format refers to data field as well as any planning and initiating the arrangement other special characteristics corrective action and referring to data (number decimal places searching. output on a printed etc.). report or in a display screen. Media Input-output medium This includes the choice of A variety of output media refers to the physical input media and are available in the market device used for input, subsequently the devices these days which include storage or output. on which to enter the data. paper, video display, Various user input microfilm, magnetic alternatives may include tape/disk and voice output. display workstations, magnetic tapes, magnetic disks, key-boards, optical character recognition, pen- based computers and voice input etc. A suitable medium may be selected depending on the application to be computerized.
Timeliness Timeliness refers to when users need outputs, which may be required on a regular, periodic basis - perhaps daily, weekly, monthly, at the of quarter or annually. Data needs to be inputted to computer in time because outputs cannot be produced until certain inputs are available. Hence, a plan must be established regarding when different types of inputs will enter system. A sales manager, may be requiring a weekly sales report. Other users, such as airline agents, require both real- time information and rapid response times in order to render better client service. Format Input format refers to the manner in which data are physically arranged. Output format refers to the arrangement referring to data output on a printed report or in a display screen. After the data contents and media requirements are determined, input formats are designed on the basis of few constraints like - the type and length of each data field as well as any other special characteristics (number decimal places etc.). Format of information reports for the users should be so devised that it assists in decision-making, identifying and solving problems, planning and initiating corrective action and searching. Media Input-output medium refers to the physical device used for input, storage or output. This includes the choice of input media and subsequently the devices on which to enter the data. Various user input alternatives may include display workstations, magnetic tapes, magnetic disks, key-boards, optical character recognition, pen- based computers and voice input etc. A suitable medium may be selected depending on the application to be computerized. A variety of output media are available in the market these days which include paper, video display, microfilm, magnetic tape/disk and voice output.
1311494623ISCA%20Notes.docx