The contents are referenced from various sources and presented in easy way for better understanding.

1. STRUCTURED ANALYSIS
Presented by-
Bijoya Laishram

2. CONTENTS
 Introduction
 Characteristics
 Tools of Structured Analysis
 Goals

3. STRUCTURED ANALYSIS
 Fundamental aspect of system analysis.
 Set of techniques and graphical tools.
 Allow the analyst/system admin to develop a
new kind of system specification.
 Easily understandable.

4. CHARACTERISTICS
 Graphical with supporting text.
 Allow system to be viewed in top-down and
partitioned fashion.
 Minimum redundancies.
 Reader should be able to predict system
behaviour.
 Easy to understand.

5. TOOLS OF STRUCTURED ANALYSIS
1. Data Flow Diagram (DFD)
2. Data Dictionary
3. Structured English
4. Decision Trees
5. Decision Table

6. 1.1- Data Flow Diagram (DFD)
 Graphical representation normally designed
by a system analyst.
 It is used as a reference point by the progr-
ammer which portrays the "flow“ of data
through an information system.

7. - Input or output
- Process
- Directions
- Data store
1.2- DFD’s SYMBOLS

8. 2. Data Dictionary
It is a very important building base for DFD for
maintaining a database.
3. Structured English
It is the additional method which is used for
overcoming the problems of the ambiguous
language in stating the actions and conditions
in making the decisions and formulating the
procedures

9. 4. Decision Trees
It represents conditions and actions
sequentially and thus shows which
conditions to consider first, which second
and so on.
5. Decision Table
It is a graphic method (in table) for descri-
bing the logic of decisions.

10. GOALS
 Improve quality and reduce the risk of system
failure.
 Establish concrete requirements specifications
and complete requirements documentation.
 Focus on reliability, flexibility and maintain-
ability of system

11. Thank you.