žDesign stage

žDesign

this involves:

ž•  selection of sot ware

ž•  drawing of output forms and reports

ž•  drawing of data collection and input forms

ž•  specification of:

•– any automatic data capture methods

•– validation and verification checks

•– data storage

•– processing

•– command buttons and menus for navigation and processing

•– hardware

•– test strategy and test plan, including:

–– the sorts of testing to be performed

–– use of real and test data chosen to include:

–– normal data

–– extreme data

–– abnormal (erroneous) data.

žPlanning

It is necessary to plan and monitor the project in terms of

žExpenditure of time/Цаг хугацааны зарцуулалт/

žMoney/мөнгө/

žUse of human/шаардагдах боловсон хүчин/

žPhysical resource/материалын нөөц/

žProject management software is a useful tool that provides хангах various төрөл бүрийн sorts of diagram to visualise төсөөлөх a project plan. 

žGrantt chart

žIt shows the durations of tasks and dependencies хамаарал between tasks.

žA grantt chart created in project management software allows you to record the information list.

žSelection of software

žThe initial choice is between customising a generic application program or writing a bespoke program in a programming language.

žDrawing of output forms and reports

žAll computer system involve input, storage, processing and output. Designer starts by deciding what the output look like.

žThe designer will design the output screens and then produce what is known as a prototype.

žDrawing of data collection and input forms

žOnce output has been designed, it is clearer what the  data inputs should be. Once decision have been made about the data that are required зайлшгүй , the designer has to decide how the data will be collected and what method of data input should be used:

žCan automatic data capture?

žWill questionnaires be used as data collection forms?

žIs the data going to be entered by someone using a keyboard and a screen?

ž

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žData storage

Data storage design should include:

žFile types to be used by generic application software

žFile structure for any files that program code will have to manipulate

žThe structure of any databases tables and their relationships

žMethods of controlling access to the data

žThe hardware needed for data storage and backup

ž