Software Architecture (3)

Some useful links to Software Architecture:

Software Architectural Styles: http://hebb.cis.uoguelph.ca/~dave/27320/new/architec.html
A class website: http://courses.cs.tamu.edu/cpsc689/hohin/fall00/


Chapter 4 Shared Information System


4.1 Shared Information System

• Separate programs for separate subtasks;
• Multiple individual steps is composed to larger tasks by passing data in a known format; (not flexible, not interactive)
• Shared data store; (data stores with different representation)
• Shared information system evolution pattern.

4.2 Database integration

2 strategies to handle data diversity: unified schema and multidatabases.

4.2.1 Batch sequential

• Transaction (commit(), rollback())

4.2.2 Simple repository

• interactive tech provides the opportunity and demand for online update adn query.
• Increasing transaction and modification.

4.2.3 Virtual repository

• Use schemas to provide a logic view of the multiple distributed databases.

4.2.4. Hierarchical layers

4.2.5. Evolution of shared information system in business data processing

• Batch processing
• Interactive processing
• unified schemas
• Multidatabase (layered hierarchy with client server interaction).

4.3. Integration in software development environment

• Batch sequential
• Repository
• Hierarchical layer

4.4. Building design

• Repository
• Intelligent control

4.5 Architectural structures for SIS