SDM 2 - Stages of SDLC (Part 1) Flashcards
What is Preliminary Analysis?
Starts when a problem within the existing system us forwarded to a system analyst to investigate. Ends when the system analyst produce a preliminary report to the management on the identified problem and the fesibility of the project to solve to problem
What is the purpose of preliminary analysis?
To formulate problem statement and to investigate on feasibility
What are the 4 things to analyst in a feasibility study
Operational, Economic, Technical and Schedule
What report is submitted by the system analyst after preliminary investigation?
Preliminary Investigation Report
When does the analysis start?
When the management gives the go-ahaead to develop the system
What is the process of analysis?
The process involves information gathering and critical analysis of the root problem of status quou, then propose the accurate solution
What document is submitted after the analysis?
System requirement document that will serve as main blueprint for the development team
Why do we need analysis?
To provide a detailed structure of what exactly is the root problem to solve and Provide exact requirements demanded by the organization for the new system to deliver
How do we analyse?
- Information gathering from the users of current system and the system itself
- Analysis of gathered information and recording the data
What is in the system requirement document?
- Formal statement problem
- Logical models
-System requirement specification (SRS)
What are the techniques to gather information? IMPORTANT
Interviews, Questionnaires, Sampling, Surveys, Observations, Document Reviews
What software do we use for the analysis?
CASE - Computer Aided Systems Engineering
Spreadsheet
Word Processor
Database
Presentation Graphics
What are the objectives of System Design?
Practicality, Efficient, Optimization, Accuracy, Reliability, Scalable
What are the 2 phases in the design stage?
Logical design and physical design
What are the purposes of system design?
- Production of the graphical models of the new system, complete with the relationship between the components of new system
- It will also include detailed specifications of the hardware and software in the system, database and data structure, final feasibility reports and the schedule to start the implementation phase