Presentation on theme: "DBX PERT : CASE T OOL Project Advisor: PROF. ISHAQ RAZA Group Members: MUHAMMAD NABEEL ARIF L1S07BSCS0019 SHEIKH HASAN IMTIAZ L1F06BSCS0024 MUHAMMAD NOUMAN."— Presentation transcript:
DBX PERT : CASE T OOL Project Advisor: PROF. ISHAQ RAZA Group Members: MUHAMMAD NABEEL ARIF L1S07BSCS0019 SHEIKH HASAN IMTIAZ L1F06BSCS0024 MUHAMMAD NOUMAN L1S09BSCS0018 1
P ROBLEM S TATEMENT AA web based database CASE Tool which supports Forward and Reverse Engineering. 3
O BJECTIVES To Draw ER Diagram through drag and drop Interface. To support ER Schema and Relational Schema in TXT & XML format. To convert ER diagram into Relational Model. To convert relational Model into ER diagram. To make our CASE Tool online on Internet. 4
ER SCHEMA & R ELATIONAL SCHEMA We will define a format for ER schema and relational schema. Both schema are in txt or xml format. These schema will contain all the information to draw ER diagram and relational diagram. E.g. 5
F ORWARD E NGINEERING ? Convert ER schema (txt, xml) / ER diagram into Relational model / Relational schema (txt, xml). Pictorial Diagram 6
B ASIC F LOW Basic flow in Forward Engineering User will write ER schema in TXT or XML format. CASE Tool will accept this ER schema as input. It will generate ER diagram from this input file. And Relational model will be generated from ER diagram. Finally Relational Schema will be produced from this Relational model in txt or xml format. Alternatively : User will draw ER diagram through drag and drop facility. And Relational model will be generated from ER diagram. Finally Relational Schema will be produced from this Relational model in txt or xml format. 19
B ASIC F LOW … Basic Flow in Reverse Engineering User will provide Relational schema in TXT or XML format. CASE Tool will accept this Relational schema as input. It will generate Relational diagram from this input file. And ER Diagram will be generated from Relational diagram. Finally ER Schema will be produced from this relational model. 20
ER D IAGRAM N OTATIONS There are different notations to represent ER diagram Bachman Notation 21
ER D IAGRAM N OTATIONS … Erwin Notation: Crow Foots 22
ER D IAGRAM N OTATIONS … 23 Chen Notation We will follow this notation is our CASE Tool.
W HAT IS NEW IN OUR CASE T OOL ? Conversion of ER Schema(txt,xml) into ER diagram & vice versa. Conversion of Relational Schema(txt,xml) into Relational Model & vice versa. Web based Case Tool. Use of Chen Notation which is easily understandable for the beginners. 27
T OOLS TO BE U SED Asp.NET(For web related ) VB Script(Web Related) VC++(For building controls) Adobe Photoshop & Macromedia Flash (Interface Design) 28
R EFERENCES Foundation of Database System by Elmasrie Navathen 4 th Edition The Case for Reverse Engineering by Michael R. Blaha Deriving entity relationship and relational model diagrams, by Database Processing : Fundamentals, Design, and Implementation. Database reverse engineering tools,2008 by Natash Ali Mian & Tauqeer Hussain. Dept. of Computer. Sci.,University of Central Punjab. (Uj-Case-Tool) for Database Reverse Engineering by Fawaz A. Masoud,Heba_tallah Khattab, Mahmoud Al-Karazoon. Reverse data engineering of E-R-designed relational schemas by Springsteel, F.; Kou, C.; Dept. of Computer. Sci., Missouri Univ., Columbia, MO. An Automatic Approach to Generate XML Schemas from Relational Models by Jumaa, H. Fayn, J. Rubel, P.INSA-Lyon, Univ. de Lyon, Bron, France Schema Conversion Methods between XML and Relational Models by Dongwon Lee, Penn State University Murali Mani and Wesley W. Chu, University of California, Los Angeles 29
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