CSE564 Lecture 22

Software Design
Software Architecture II
(202103)

Transcript

1. jgs CSE 564 Software Design Lecture 22: Software Architecture II Dr. Javier Gonzalez-Sanchez javiergs@asu.edu javiergs.engineering.asu.edu | javiergs.com PERALTA 230U Office Hours: By appointment
2. jgs Previously … Model-View-Controller
3. jgs 564 00000100 Blackboard
4. jgs 564 00000100 Drafting an Implementation
5. jgs 564 00000100 What about Blackboard § Singleton (yes or not)? § Create Blackboard in main method (yes or not)? § Connection between Blackboard and Professor (association, aggregation, composition, realization, generalization) ? § Connection between Blackboard and Student (association, aggregation, composition, realization, generalization) ? § Connection between Blackboard and Classroom (association, aggregation, composition, realization, generalization) ?
6. jgs 564 00000100 Implementation :: Classroom
7. jgs 564 00000100 Implementation :: Professor
8. jgs 564 00000100 Implementation :: Student
9. jgs 564 00000100 Implementation :: Blackboard
10. jgs 564 00000100 Drafting an Implementation
11. jgs Client-Server
12. jgs 564 00000100 Client-Server
13. jgs 564 00000100 Client-Server Description § Functionality of the system is organized into services. § Each service delivered from a separate server. § Clients are users of these services and access servers to make use of them. When used § Used when data has to be accessed from a range of locations. § May also be used when the load on a system is variable. Advantages § Distributed system Disadvantages § Each service is a single point of failure so susceptible to denial of service attacks or server failure. § Performance may be unpredictable because it depends on the network as well as the system.
14. jgs 564 00000100 Client-Server
15. jgs 564 00000100 Implementation :: Server chrestomathy: https://www.javatpoint.com/socket-programming
16. jgs 564 00000100 Implementation :: Client chrestomathy: https://www.javatpoint.com/socket-programming
17. jgs Quiz 06
18. jgs 564 00000100 Problem
19. jgs 564 00000100 Model
20. jgs 564 00000100 Questions
21. jgs CSE 564 Computer Systems Fundamentals Javier Gonzalez-Sanchez javiergs@asu.edu Fall 2020 Disclaimer. These slides can only be used as study material for the class CSE564 at ASU. They cannot be distributed or used for another purpose.