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Indira Gandhi National Open University presents. A Video Lecture Course: System Analysis. Fact Finding Techniques. Commonly Used Techniques. Existing documentation, forms, files, records Research & site visits Observation of the work environment. Commonly Used Techniques.
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Commonly Used Techniques • Existing documentation, forms, files, records • Research & site visits • Observation of the work environment
Commonly Used Techniques • Questionnaires • Interviews & group sessions
Possible Strategy? • Get all possible information from existing documentation • Observe the system in action (if possible)
Possible Strategy? • Design questionnaires to clear basic doubts • Conduct personal interviews to clarify more difficult issues
Existing Documentation • Absolutely essential • Document-department grid
A B C D Sales 2 1 1 Stores 1 1 Purchase 1 1 Finance 2 1 1 Document-department Grid
Advantages • No need to disturb the user in his office • No time constraint • Know what happens and not what the user wants you to know, no user bias
What Documents? • Organisational chart • Interoffice memos, study reports • Accounting records • Policy manuals
What Documents? • Standard operating procedures (SOPs), job descriptions • Completed forms that represent actual transactions
What Documents? • Manual & computerised reports • Documentation from previous studies
Completed Forms • No blank forms • Form design may be obsolete • Column headings may be misleading
certainty factor acceptableerror Desired certainty Factor 95% 90% 1.960 1.645 Sample Size 2 SS = 0.25 X
Desired certainty Factor 95% 90% 1.960 1.645 Sample Size 2 SS = 0.25 X 1.645 = 68 0.10
Sample Size • Randomization - no predetermined pattern • Stratification - systematic approach Every 3676th Document (25000/68 =3676)
Reports • Personal reports?
S.O.P • How things ought to be done • Mismatch • duplicate information • procedure eliminated • same form with different information
Research & Site Visits • Study of application and problem area • Trade journals, libraries, reference rooms • Other companies
Observation • Actual watching of processes and users • Not very commonly used
Not Commonly Used - Why? • Simple or routine work displayed • Graveyard shift • Temporarily perform correctly • Hawthorne Effect
Hawthorne Effect • Rewards you reap when you pay attention to people • ‘Someone Upstairs Cares’ syndrome
Advantages • See exactly what is being done because difficult to explain complex procedures • Physical conditions
Be Prepared! • Normal hours & peak hours • Data collection forms • Immediate documentation
Be Prepared! • Discount ‘textbook procedures’ • No assumptions • Review and verify conclusions
Alka Joglekar Presenter
Trans-slide K Vishwanath Graphics Suresh Kumar
Set Raghav Mishra M.U.Patil Floor Assistant Gajendra Diwakar Mukesh Saxena
Makeup Sunita Chhabra Floor Manager Kumar
Camera R. Sekhar G. Prasad Deepak Sharma Lighting Assistant Saroj Jain
Vision Mixer S B Saxsena CCU R
Sound a Video Recording a
Technical Director Vinod Mago Assistance in Production A
Edit & Produced by YOGESH KUMAR
An EMPC Indira Gandhi National Open University presentation -1999