System Architecture Design

Transcription

1 System Architecture Design

2 158

3 Moving from Analysis to Design System Architecters Server-based Architecture Client-based Architecture Client-Server Architecture / Client-Server Tiers / Distributed Objects Architecture Infrastructure Design Software and Hardware Specifications

4 160

5 " - -." " ". (Application : (Database) Programs) (User Interface). (Client Architecture) (Server Architecture) (Client/Server /.Architecture) (Client/Server) (Client) (Server) :..1..2

6 : : : :. / / : : 1. Edwards, P., Systems Analysis, Design, and Development with Structured Concepts, Rinehart and Winston, Kendal, K., and Kendal, J., Systems Analysis and Design, 5 th Ed., Silver, G. and Silver, M., Systems Analysis and Design, Addison- Wesley, Aktas, Z., Structured Analysis and Design of Information Systems, Prentice-Hall, / computer science/ staff/saleh abu-soud

7 Moving From Analysis to Design (What) " " (How) " " : : :(User Requirements). :(System Requirements). : :(System Architectural Design). :(System Specification) UML (Use Cases) (System Boundary)... (System Interaction) (High-Level Design) : (1 (2 (3 (1) 163

8 System Architectures Server-based Architecture (Centralized Processing) (Dump Terminal).. (1). (1) :.. 164

9 . - - (2) Client-based Architecture (Personal Computers) 2.3. (Stand-Alone Computing). : :(Maintenance). :(Data Security). :(Consistency and Integrity). :(Cost) (Local 165

10 (File Area Network) Server).(2) (2) (3) 166

11 / 3.3 Client/Server Architecture / - - (Tier). (Fat Client).(Thin Client).. : / :. / : 167

12 . /. : / (Complexity).. (4). / Client-Server Tiers / / (Two Tiers Architecture) (3). 168

13 (3) (Application (Three Tiers Architecture).Server). (4) Database Computer (4) 169

14 - -. (5).(Multiple Tiers) Database Computer (5) Load ). (Balance : : 170

15 . :. (Load (5) Balance) 5.3 Distributed Objects Architecture - - / (Services).... (Flexibility) (Scalability).. (Interface).(Middleware Programs) 171

16 :. /. - - (6) (Middleware Programs) 172

17 .4 Infrastructure Design Software and Hardware Specifications : - :.. :

18 : (Request For Proposal RFP).. (Request For Quotation RFQ) RFP (1). (RFQ) (2) (7). (RFQ) (RFP) 174

19 .5. : - (Application Programs) (User Interface) (Database). (Client Architecture) (Server Architecture) /.(Client/Server Architecture).(Middleware Programs)

20 .7 (1) Pentium 4 4 Mhz Processor 4 Gbyte Hard Disk 17 inch flat screen 512 Mbyte RAM (2) (Oracle) (RAM) (Oracle) (Hard Disk)

21 .8 :Middleware Programs. :Request For Quotation RFQ. :Request For Proposal RFP. :Client/Server Tiers /. :Fat Client. :Thin Client :Server-based Architecture. (Dump Terminal). :Client/Server-based Architecture / (Tier) (Fat Client)

22 .(Thin Client) :Client-based Architecture (Stand-Alone Computing) Aktas, Z., Structured Analysis and Design of Information Systems, Prentice-Hall, Baudoin, C. and Hollowell, G., Realizing The Object-Oriented Life Cycle, Prentice- Hall, Booch, G., Rumbaugh, J., and Jacobson, I., The Unified Modeling Language User Guide, Addison-Wesley, Dennis, A. et al, Systems Analysis & Design: An Object-Oriented Approach with UML. John Wiley & Sons Inc., Dewitz, S., Systems Analysis and Design and the Transition to Objects, McGraw-Hill, Edwards, P., Systems Analysis, Design, and Development with Structured Concepts, Rinehart and Winston, Henderson, P., Object-Oriented Specification and Design with C++, McGraw- Hill, Hoffer, J. et al., Modern Systems Analysis & Design, 2 nd Ed., Addison- Wesley, Kendal, K., and Kendal, J., Systems Analysis and Design, 5th Ed Kruchten, P., The Rational Unified Process: An Introduction. 2nd Ed., Addison- Wesley, Lejk, M. and Deeks. An Introduction to Systems Analysis Techniques, 2nd Ed., Pearson Education Limited, Maciaszek, A., Requirements Analysis and System Design, Developing Information Systems with UML, Addison-Wesley, Quatrani, T., Visual Modeling with Rational Rose 2000 and UML, Addison- Wesley, Satzinger, J., Systems Analysis and Design, 2nd Ed., Thomson Learing, Silver, G. and Silver, M., Systems Analysis and Design, Addison- Wesley, / computer science/ staff/saleh abu-soud