1. The Database Development Process

2. Incremental Commitment in DB Development
Project is reviewed at the end of each development phase (iterative process)
Re-justify the process under the light of new requirements and available resources
Requirements are tend to change all the time
Renew commitment of stakeholders
Change of budget by top management
Continue / Revise Scope / Cancel

3. Database Development Process
Feasibility Study of
Project
Purpose – preliminary understanding
Deliverable – request for project
Requirement Analysis
Conceptual Design
Logical Design
Physical Design
- Is the project worth looking at ?
- Is the DB system worth building?
Implementation
Maintenance

4. Database Development Process
Purpose: state business situation and possible solution
Deliverable: identify all the necessary BRs
Feasibility Study of
Project
Requirement Analysis
Conceptual Design
Logical Design
Physical Design
What do users need and want from the new system?
What the new system must do.
Implementation
Maintenance

5. Database Development Process
Purpose: thorough analysis
Deliverable: conceptual data model based on refined BRs (bi-directional)
Feasibility Study of
Project
Requirement Analysis
Conceptual Design
Logical Design
conceptual data model
next slide
example model from the web page
Physical Design
Implementation
Maintenance

6. Conceptual Data Model

7. Database Development Process
Feasibility Study of
Project
Purpose: information requirements structure
Deliverable: Selection of DB system
Requirement Analysis
Conceptual Design
Logical Design
Hierarchical DB
Network DB
Relational DB
Object Oriented DB
NoSQL (Big Data) DB
Physical Design
Implementation
Maintenance

8. Database Development Process
Purpose: develop technology specs
Deliverable: program/data structures, DB technology purchases…
Feasibility Study of
Project
Requirement Analysis
Conceptual Design
Logical Design
Physical Design
Implementation
Define physical organization and details of data
Maintenance

9. Database Development Process
Purpose: testing, training, debugging, installation, documenting
Deliverable: operational programs, documentation, training materials
Feasibility Study of
Project
Requirement Analysis
Conceptual Design
Logical Design
Physical Design
Implementation
Maintenance

10. Database Development Process
Feasibility Study of
Project
Purpose –monitor, repair, enhance
Deliverable – periodic audits
Requirement Analysis
Conceptual Design
Logical Design
Physical Design
Implementation
Maintenance

11. DB Development Schedule
Gantt Chart shows time estimates of tasks

12. DB Development Schedule …
PERT Chart shows dependencies between tasks