31-07-2012, 12:17 PM
Fact Finding Techniques
6902721-Fact-Finding-Techniques.ppt (Size: 295 KB / Downloads: 63)
What is Fact Finding?
Fact Finding is the formal process of using research, interviews, questionnaires, and other techniques to collect information about systems, requirements, and preferences.
It is also called information gathering or data collection.
Who does it?
The System Analyst.
The Analyst especially needs to develop a detective
mentality to be able to discern relevant facts.
What is its Significance in SDLC?
Tools, such as data and process models, document
facts, and conclusions are drawn from facts. If facts are
not collected, tools can’t be used effectively and
efficiently.
Fact Finding Techniques
There are Seven fact-finding techniques:
Study & Sampling of existing documentation, forms and databases.
Research and Site visits.
Observation of the work environment.
Questionnaires
Interviews
Joint Application Development (JAD)
Rapid Application Development (RAD)
An Analyst usually applies several of these techniques
during a single systems project. The Analyst selects the
most suitable technique, depending on the advantages
and disadvantages.
Advantages
Reliable data.
Relatively inexpensive.
Allows work measurement.
Practical Experience
Disadvantages
The act of observation alters the behaviour.
The observation made may not involve the difficulty and volume normally experienced during that time period.
Some tasks may not always be performed in the manner in which they are observed.
People may let you see what you want to see.
CONCLUSION
Effective Fact-Finding techniques are crucial to the application of systems analysis and design methods during systems projects.
Fact finding is performed during all phases of the SDLC.
The System analyst plays a major role in collecting the facts.
Because ‘Time is Money’ it is wise and practical to use a fact-finding strategy to maximize the value of time spent with end-users.