Which of the following is not considered as a tool for at the system design phase Question 23Answera.Piechartb.flow chartc.Decision tabled.Data flow diagram

To determine which option is not considered a tool used in the system design phase, we can analyze the tools typically employed in this phase of system development.

1. Pie Chart

   • Description: A circular statistical graphic divided into slices to illustrate numerical proportions.
   • Usage in System Design: While pie charts can be used for data representation, they are not specific tools for system design. They do not provide a method for system analysis or design.

2. Flow Chart

   • Description: A diagram that represents a process, showing the steps as boxes of various kinds, and their order by connecting them with arrows.
   • Usage in System Design: Flow charts are commonly used in system design to depict the flow of information or the steps in a process.

3. Decision Table

   • Description: A table used to represent and analyze decision rules, specifying conditions and actions in a clear, systematic way.
   • Usage in System Design: Decision tables are valuable for documenting and analyzing the choices that need to be made based on various conditions.

4. Data Flow Diagram (DFD)

   • Description: A graphical representation of the flow of data through a system.
   • Usage in System Design: Data Flow Diagrams are widely used in system design to outline how data moves within the system.

Final Answer

The correct answer is a. Pie chart, as it is not considered a tool specifically used in the system design phase.