4.3.9 - SDLC - Systems Investigation
- Created by: Annie
- Created on: 13-05-13 18:14
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- Systems Investigation
- When problems emerge from the current system, the first stage is a structured review of the problems, current situation and desired outcome
- A report is produced which analyses the existing system and examines the feasibility of a new system known as the Feasibility Report
- The report usually covers
- Existing Hardware and Software
- What does the business currently use?
- Definition of the scope of the existing system
- What does the current system do?
- May include an organisational chart showing who is responsible for different aspects of the system
- Identifying where the data used for the system comes from
- How information is gathered?
- Order forms, delivery notes, invoices etc.
- Major processing functions and processes
- What happens to the data currently?
- Searches, on screen forms, printouts, processes etc.
- How does the data move through the system from 'capture' to 'outcome'
- What happens to the data currently?
- Identification of problems with the present system
- These will summarise the need for a new system
- Could range from a new to combine two smaller systems into one larger system to a wish to produce information in a wider range of formats
- Are they going to save or lose money?
- These will summarise the need for a new system
- Identify user requirements for the new system
- This will follow from investigations of the current problems and interviews with managers and staff
- The user requirements will be key needs for a new system.
- It will often not give a complete specification for the new system
- Analysis of costs and benefits for the new system
- A new system may be desirable and may certainly improve the day-to-day running of the business
- However, all new systems cost money and a custom built system will potentially take months or longer to create
- The feasibility report will detail whether a solution is possible and will also analyse whether it is worthwhile for the business in terms of time and money
- A new system may be desirable and may certainly improve the day-to-day running of the business
- Existing Hardware and Software
- Is it worth it?
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