M1 Part 2 Flashcards
Analyze requirements. Develop preliminary data model.
Conceptual data modeling
Analyze requirements in detail. Integrate database views into conceptual data model.
Logical database design
Define new database contents to DBMS. Decide on physical organization for new data. Design database processing programs.
Physical database design and definition
Code database processing. Install new database contents, usually from existing data sources.
Database implementataion
Analyze database to ensure it meets application needs. Fix errors in database.
Database maintenance
Tune database for improved performance. Fix errors in database.
Database maintenance
- User Views
- Subsets of Conceptual Schema
- Can be determined from business-function/data entity matrices
- DBA determines schema for different users
External Schema
E-R Models
Conceptual Schema
- Logical structures
* Physical structures
Internal Schema
a planned undertaking of related activities to reach an objective that has a beginning and an end
Project–
- Initiated and planned in planning stage of SDLC
- Executed during analysis, design, and implementation
- Closed at the end of implementation
Managing Projects