CSE564 Lecture 22

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 564 00000100 Announcement § No lecture Monday April 5.

3. jgs Previously … Model-View-Controller

4. jgs 564 00000100 Model-View-Controller

5. jgs 564 00000100 Implementation :: View

6. jgs 564 00000100 Implementation :: Controller

7. jgs Architecture Patterns Blackboard

8. jgs 564 00000100 Blackboard

9. jgs 564 00000100 Drafting an Implementation

10. 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) ?

11. jgs 564 00000100 Implementation :: Classroom

12. jgs 564 00000100 Implementation :: Professor

13. jgs 564 00000100 Implementation :: Student

14. jgs 564 00000100 Implementation :: Blackboard

15. jgs 564 00000100 Drafting an Implementation

16. jgs Client-Server

17. jgs 564 00000100 Client-Server

18. 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.

19. jgs 564 00000100 Implementation :: Server chrestomathy: https://www.javatpoint.com/socket-programming

20. jgs 564 00000100 Implementation :: Client chrestomathy: https://www.javatpoint.com/socket-programming

21. jgs 564 00000100 Drafting an Implementation ...

22. 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.