Automated Tools for Systems Development

1
????? ?????? ?????Systems Analysis and Design
?????? ?????? ???????????
???????? ?? ????? ??? ???? ????-

• 4
• ????? ??????? ????? ?? ????? ?????
• Automated Tools for Systems Development

4.1
2
?????

• Computer-aided Software Engineering (CASE)
• ????? ????? ??? ?????? ????? ????? ????? ?? ?????
  ??? ???????
• ?????? ???? ?????? ??????? ???? ??? ???? ????
  ???? ????? ??????
• ????? ??? ????? ?????????
• ????? ??? ????? ???? ???? ??????? ???? ???
• ????? ???? ????? ????? ????? ????? ??????? ????
  ???????
• ???? ??? 4.1

4.2
3
??????? ?? CASE ?? ????????The Use of CASE in
Organizations

• ???????
• ????? ???? ??????? ???????
• ????? ???? ??????? ????????
• ????? ?????? ??????? ???????? ?? ???? ???????
  ?????
• ????? ??????? ??? ????? ??????? ???????? ????
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  ??????
• ????? ????? ????? ???????
• ????? ???? ???????
• ???? ??? ????? ????????? ??????????
• ???? ?????? ????? ??????? ?????? ?? ???? ?????
• ???? ? ????? ?? ????? CASE ???? ???? ????? ??
  ??????? ????? ????????

?????? ??????
4.3
4
????? ???? ????????

• ??? ??????? -
• ??????? (?? 5000 ??? 15000 ?????)
• ?????? ?? ????????? ???? ?????? .. ???????
  ???????
• ???? ?????? ?? ????? ????? ????????? ?? ???????
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• ???? ? ?? ???? ??????? ??????????? ? ?? ????????
  ????? ?????? ??????? ?? ?????? ????? ?????? ? ???
  ????? ?? ??? ????????

4.4
5
???? ???? ??? CASE

• ???? ???????? ???? ???????
• Reverse Engineering Tools ??????? ???????
• ????? ????? ???? ???????? ?????? ?????? ??? ?????
  ????? ?????
• Reengineering Tools ????? ???????
• ????? ????? ???? ???????? ?????? ?????? ??????
  ??? ???? ????? ??????? ???? ??? ?????? ?????
• ????? ??????? ???? ?? ?????? ?? ????? CASE
• ???? ? ?? ?? ??????? ?????? ???? ?? ?????? ??
  ???? ????? CASE - ???? Tables 4-3 and 4-4

4.5
6
?????? ?? CASE

• Upper CASE ????? ??????
• ???? ??????? ??????? (?????? ???? ????????
  ????????? ???????? ??????? ??????? ???????
  (???????) ????????? ?????)
• Lower CASE ????? ??????
• ???? ??????? ???????? (???????) ????????
• ??? ????? ??????? ???????? ??? ??????? ????????
  (??? ??????? ? ???????? ?..???)
• ???? ????? ?????? ???? (???? ?????? repository
  ???) ???? ????? ???????? ???????? ?????????
  ????????? ..???)

4.6
7
???????

• ????? ??? ?????- ????
• ????? ??? ???????? Diagramming tools
• ?????? ???????? Report generators
• ????? ????? ???????? ??????? ?????????? (????????
  ??????? ?????)
• ???? ????? ???????? A central repository
• ???? ??????? Documentation generators
• ???? ??????? ??????????Code generators
• ??? ???? ???? ???? ??? ?? ???? ?? ?? ??? ????????
• ?????? ?????? ????-
• Security Features
• Version Control
• Import/Export
• Backup and Recovery

4.7
8
CASE ????? ????? ????? ??????? ?????????CASE
versus Traditional Systems Development

• ??????? ????????? ?? ???? ???? ?????? ???????
  ??????? ????? ????????
• ????? ?? ???? ?? ??????? ??? ?????? ??????? -
  ???????
• ????? ?? ???? ????? ????????? ?? ??????? ??? ????
  ?? ??????? ??????

• Traditional Systems Development
• Emphasis on coding and testing
• Paper-based specifications
• Manual coding of programs
• Manual documenting
• Intensive software testing
• Maintain code and documentation

• CASE-Based Systems Development
• Emphasis on analysis and design
• Rapid interactive prototyping
• Automated code generation
• Automated documentation generation
• Automated design checking
• Maintain design specifications

4.8
9
1- ????? ??? ???????? Diagramming

• ???? ?? ??? ?????? ???????? ???? ????
• ????? ?? ??? (???? ????????? ?????? ????????
  ?????? ???????) process flows, data structures
  and program structures
• ??? ???????? Several types of diagrams
• Data Flow Diagrams (DFD) (Figure 4-4)
• Functional Hierarchy Diagrams(Figure 4-5)
• Entity-Relationship Diagrams (Figure 4-6)

4.9
10
2- ????? ????? ??????? ?????????CASE Form and
Report Generator Tools

• ???? ?????? ??????? ????????? ?????? ??? ??? ????
  (?????) ???? ??? ?????????? ???????? ??? ?????
  ??????
• ???? ?????? ?????? ??????? ??????? ??????
  ?????? ?? ????? ?? ?? ???????? ???? ??? ???? ??
  ??????? ?? ???????

3- ????? ???????CASE Analysis Tools

• ?????? ??????? ????? ?? ????? ???????? ???????
  ???????? ????? ??????? ?????? ??? ?? ????????
  ???????? ?????????
• ????? ??????? ????? ?? ????? ????? ???? ???
  ???????? ??????? ??????? ?? CASE

4.10
11
4- ???? ???????? ????????? ?? ????????CASE
Repository

• Integrated CASE (I-CASE) ??????? ?????????
• ???? ??????? ???? ?????? ?? ??????? ??????
  ???????? ???????? ?????????
• ???? ??????? (??????? ???????? ??? ?????
  ?????)
• ?????? ???? ??????? ???????? ???????? ????? ???
  ??????? ???????? ???????? ?? CASE
• ????? ???????? ????? ?????? ????? ??? ??????? ???
  ?? ???????

4.11
12
???? ...4- ???? ???????? ????????? ??
????????CASE Repository

• ????? ??? ?????? ??? ????????? ??????? ???????
  ?????? ?????? ?????? ??????? ??? ?? ??? ???????
  ??????? ????? ???????? ?? ???????? ??????? ??????
  ????? ????????
• ????? ??? ????? ??????? (Information Repository
  Data Dictionary )
• ???? ????????? (???? ??????? ?? ????? ???????
  ?????? ??????? ??????? ???????? ????? ????
  ????? ?????? ???? ????????? )
• ??????? ???????? (????? ?????? ?????? ?????
  ?????? ???????? ?????? ????? ??? ????? ??????
  ????? ??????? Cross referencing ????? ?????
  ???? ?????? ???? ????? ?? ???? ???? ????? ??????)

4.12
13
???? ?? ????? ????????

• Data Dictionary
• ???????? ?? ????? ???? ?????
• ????? ????? ??????? (??????)
• ??? ??? ??? ????
• ????? ???????? ??? ???????
• ??? ?????? ??????
• ????? ?????? ??????? ???? ?????? (????????)
• ????????? ?????? ???? ?????? ???????? ???????
  ?????? ??

4.13
14
???? ???????? ????? ???? ????? ?????CASE
Repository and the SDLC

• ????? ????? ???????? ??? ??? ?? ????????? ??
  ??????? ???????? ?????????? ????????? ?? ???????
• ????? ??????? ???????? ? ??? ??? ???????? ???????
  ???????? ???????? ?????? ??????? ?????????
• ??? ??? ???????? ??????? ?????? ?? ????? ?????
  ???????? ???????? ???????? ??????

• ????? ??????
• ???????? ?? ????? ???? ????? ???????
• ???????? ?? ????? ????? ??????? ??????? ? ??? ?
• ?????? ??? ????? ????? ?????? ???? ???? ?????
  ????????? ??? ???? ????? ???? ??? ??????? ??????

4.14
15
5 ????? ????? ????? ?????? CASE Documentation
Generator Tools

• ????? ????? ????? ??????? ?????? ??????
  ??????????
• ???? ?????? ???? ?????? ?????? ???? master
  templates ?????? ?? ?? ?? ??????? ???????
  ??????? ???? ?? ???? ????? ???????

6 ????? ????? ???(?????)?????? CASE Code
Generator Tools

• ???? ???????? ???????? ??????? ?????? ????????
  ?????? ?? ????? ????? ?????? ???????? ???????? ??
  ???? ???????? repository

4.15
16
????? ????? ????? (??????) ????? Visual and
Emerging Development Tools

• ????? ??????? ??????? ???????? Object-Oriented
  Development Tools
• Object ?????? ( ???? ?? ???????? ????????? ????
  ????? ????? ?????? ???? ?????? ???? ?????
  ????????? ????? ??????? Encapsulation ??? ????
  ???????? ?????????? ??? (???? ????? ???? ??????
  ????? ????? ????? ????? ??????? ????? ?????))
• Visual Development Tools ????? ??????? ???????
• ???? ???????? ?? ???? ????? ????? ??????? (?????
  ??????? ???????? ??????? ..???)
• ??? ??????
• Microsoft Visual Studio
• Delphi
• Powerbuilder
• ColdFusion

4.16
17
????? ????? ????? (??????) ????? Visual and
Emerging Development Tools

• Visual Development Tools ????? ??????? ???????
• ???? ???????? ?? ???? ????? ????? ??????? (?????
  ??????? ???????? ??????? ..???)
• ??? ??????
• Microsoft Visual Studio
• Delphi
• Powerbuilder
• ColdFusion

4.17
18
CASE Tools examples

• Powerdesigner (Data Architect, Process Analyst
  and S-Designor) from Sybase
• Oracle Systems CASE Designer 2000
• Sterling Software's COOL Stuff
• Systems Architect from Popkin Software
• SilverRun from Computer Systems Advisers
• ERwin from Platinum Software
• Rational Rose
• Visio Professional / Visio Enterprise