Showing posts with the label System DesignShow all

What the factors designer should consider to achieve goal.

Physical file structures must be designed to be efficient and workable. Under explain …

What is the factors of Creating paper, printed forms for a system

i) Including a serial number on all forms. The cost of including a serial number on…

How to converting a current physical DFD into a logical DFD.

Replace physical data stores with main logical data stores. Remove transient dat…

what symbols are used in a DFD.

what symbols are used in a DFD.

Describing in detail what each of the FOUR (4) symbols used in a DFD represents.   …

How you are designing a system for a hospital

Suppose- You are designing a system for a hospital . This system stores the medical h…

Five key points that should be taken into account in the design of dialogue and screen layout.

Casual/novice User :- Have no prior knowledge of what is expected of them. Must…

Important ergonomic design features that should be considered for the following workstation items.

i) The keyboard The keyboard should be detachable from the screen. There should be…

Which is the key pieces are required for designer regarding system output.

The destination for the output (is it internal or intended for customers). The f…

What the factors should be considered in relation to office lighting when positioning workstations.

Screen should be placed so that direction of viewing is parallel to windows to redu…

The four stages that influences the design of system output.

i) The destination of the output. External outputs require careful consideration as…

Best Seven possible purposes of system output.

To communicate the results of processing to users. To produce documents for comm…

Which the information a designer requires regarding the file access requirements of a new system.

The average number of accesses expected over a given timescale. Any peaks and trou…

Which sections contained in a user system specification.

Introduction – brief introduction to system, reason for changes, statement of prob…

What the factors that a designer considers when choosing an input device for a system.

The frequency, flow and complexity of input data. The volume of input data. T…

What is the requires a designer for each system input.

The source(s) of the input. The format in which the input arrives at the system.…

The four objectives of system input design.

To choose a cost effective method of input. To provide a method of input accepta…

What kinds of information help to assess the performance of transactions.

Types of transaction – this includes the number of input and output characters req…

Five advantages that a structured specification produced in the analysis phase.

Has over a traditional report. It is graphic, consisting mainly of diagrams. It …

The purpose of systems design.

To produce a technical specification of the detailed physical design of the proposed…