System Analysis and Design, Information Systems Manual, SA&D Guide, Software Development Life Cycle, Systems Engineering Reference

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M.C.A. SEM –I ,PAPER -II



SYSTEM ANALYSIS AND DESIGN




1. Introduction

• Systems and computer based systems, types of information
system
• System analysis and design
• Role, task and attribute of the system analyst


2. Approaches to System development

• SDLC
• Explanation of the phases
• Different models their advantages and disadvantages
o Waterfall approach
o Iterative approach
o Extreme programming
o RAD model
o Unified process
o Evolutionary software process model
- Incremental model
- Spiral model
- Concurrent development model


3. Analysis : Investigating System Requirements

• Activities of the analysis phase
• Fact finding methods
o Review existing reports, forms and procedure descriptions
o Conduct interviews
o Observe and document business processes
o Build prototypes
o Questionnaires
o Conduct jad sessions
• Validate the requirements
o Structured walkthroughs


4. Feasibility Analysis




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• Feasibility Study and Cost Estimates
• Cost benefit analysis
• Identification of list of deliverables


5. Modeling System Requirements

• Data flow diagram logical and physical
• Structured English
• Decision tables
• Decision trees
• Entity relationship diagram
• Data dictionary


6. Design

• Design phase activities
• Develop System Flowchart
• Structure Chart
o Transaction Analysis
o Transform Analysis
Software design and documentation tools

• Hipo chart
• Warnier orr diagram
Designing databases

• Entities
• Relationships
• Attributes
• Normalization


7. Designing input, output and interface

• Input design
• Output design
• User interface design
8. Testing

• Strategic approach to software testing
• Test series for conventional software
• Test strategies for object – oriented software
• Validation testing
• System testing
• Debugging




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9. Implementation and Maintenance

• Activities of the implementation and support phase


10. Documentation

Use of case tools,

Documentation – importance, types of documentation

Books :



1. “Analysis and Design of Information Systems” : Senn, TMH.

2. System Analysis and Design : Howryskiewycz, PHI.

3. “System Analysis and Design” : Awad.

4. “Software Engineering A practitioners Approach” : Roger S. Pressman
TMH.

5. “System Analysis and Design Methods : “Whitten, Bentley.

6. “Analysis and Design of Information Systems” : Rajaraman, PHI.




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1
INTRODUCTION

Unit Structure
1.1 Introduction
1.2 System
1.3 Classification of System
1.3.1 Physical or Abstract System
1.3.2 Open Closed System
1.3.3 Man made Information System
1.3.4 Computer Base System:
1.3.5 Information System:
1.3.6 Transaction Processing Systems
1.3.7 Management Information Systems
1.3.8 Decision Support Systems
1.4 System Analysis :
1.5 Software Engineering:
1.6 System Design :
1.6.1 Logical Design
1.6.2 Physical Design
1.7 System Analyst:
1.7.1 Role of System Analyst:
1.7.2 Task of System Analyst:
1.7.3 Attributes of System Analyst:
1.7.4 Skill required for System Analyst:
1.8 Summary


1.1 INTRODUCTION:

System is combination of different factors which perform
different functions. It handles by user and administrator who has a
knowledge and skill about that system.




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