Monday, 21 February 2011

weekly reflection 2

CHAPTER 3:
A system is a set of components that interact with each other to form a whole and work together toward a common goal.
Components of information system are database, people, procedures, software, hardware and data.
5 phase of System Development Life Cycle (SDLC):
  • Preliminary study phase
  • Systems analysis phase
  • Systems design phase
  • System implementation phase
  • Maintenance phase

4 goals of database development are:
Ø  Develop a common vocabulary
Ø  Define the meaning of data
Ø  Ensure data quality
Ø  Find an efficient implementation

 6 phase of database life cycle (DBLC):
*      The database initial study
*      Database design
*      Implementation and loading
*      Testing and evaluation
*      Operation
*      Maintenance and evolution

Two types of skills are needed in database developments which are the soft skills and the hard skills.



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