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.