4.1 Input/ Output and Form Design
Input Design In an information system, input is the raw data that is processed to produce output. During the input design, the developers must consider the input devices such as…
Flow charts
What is a Flowchart? Flowchart is a graphical representation of an algorithm. Programmers often use it as a program-planning tool to solve a problem. It makes use of symbols which…
Gantt charts
Gantt chart is a type of a bar chart that is used for illustrating project schedules. Gantt charts can be used in any projects that involve effort, resources, milestones and…
IPO charts
A problem can be broken down into 4 components: 1. Input - any data that is needed to solve the problem 2. Processing - the task that will be carried…
IPO charts
A problem can be broken down into 4 components: 1. Input - any data that is needed to solve the problem 2. Processing - the task that will be carried…
Data Dictionary
A data dictionary is a structured repository of data elements in the system. It stores the descriptions of all DFD data elements, that is, details and definitions of data flows,…
Context Diagram
A context diagram helps in understanding the entire system by one DFD which gives the overview of a system. It starts with mentioning major processes with little details and then…
Data Flow Diagrams (DFD) or Bubble Chart
It is a technique developed by Larry Constantine to express the requirements of a system in a graphical form. It shows the flow of data between various functions of the…
What is Structured Analysis?
Structured Analysis is a development method that allows the analyst to understand the system and its activities in a logical way. It is a systematic approach, which uses graphical tools…
Types of Feasibilities
Economic Feasibility It is evaluating the effectiveness of the candidate system by using a cost/benefit analysis method. It demonstrates the net benefit from the candidate system in terms of benefits…