1. OHTO -99 SOFTWARE ENGINEERING LECTURE 6 Today: - Round-trip engineering Forward engineering Reverse engineering - A round-trip engineering tool (Fujaba)

2. OHTO -99 FORWARD ENGINEERING Forward engineering is the "normal" software development process. Although there are several different development models, they are involved with the idea that: requirements -> analysis analysis-> design design-> implementation

3. OHTO -99 REVERSE ENGINEERING Reverse engineering is the "normal" software development process reversed (not really…) Anyway, the basic idea is that we may want to go in the reverse order: implementation -> design design -> analysis analysis-> requirements

4. OHTO -99 REVERSE ENGINEERING What could reverse engineering be in practice? Generating source code from machine code Generating design models from source code Abstracting the design model into "analysis level" Document generation and maintenance We will visit Hausi Muller’s www-pages for more: http://www.rigi.csc.uvic.ca/UVicRevTut/F4rev.html

5. OHTO -99 ROUND-TRIP ENGINEERING In round-trip engineering we want to be able to edit "anything" in the project and then to be able to do requirements analysis analysis design design implementation

6. OHTO -99 IS ”TRADITIONAL DESIGN” NEEDED? Alternative model: 1. Write code 2. Generate documentation automatically What are the documents for? - Users - Maintenance - Design & Analysis -- Brainwork on a higher abstraction level & Communication The ”alternative model” seems to have shortcomings.

7. OHTO -99 ROUND-TRIP ENGINEERING TOOL In this course, we will use the Fujaba tool: http://www.uni-paderborn.de/fachbereich /AG/schaefer/ag_dt/PG/Fujaba/fujaba.html Fujaba will be installed on the Computer Science bigger PC lab but you can also download it yourself If there is sufficient demand, it is possible to burn a CD - contact me via e-mail I will book the PC lab next week for a couple of hours for us to work with Fujaba You can run Fujaba by just double-clicking Fujaba.jar Follow the course web pages for information