What are the advantages of object oriented systems development life cycle?

Not too much if you are a one man/very small shop. Any kind of organized programming method works in this environment if you are competent in the language(s) you are using and have a good knowlege of the business/science side of the project. You have to understand the subject before you can write the code...

For large shops (more than 5 people), it is an effective way to design/specify projects so that:

1) Components (programs, data types, etc.) can be defined consistently.

2) Programmers and Project Managers can actually communicate and understand each other. (this should probable 1 instead of 2).

3) Partially complete modules/programs/whatever can be passed to another person when necessary. (With some expectations of getting it done without a complete rewrite).

4) The project estimates can be a bit more accurate when somebody asks how far along something is. (Management only has to double their estimates instead of quadrupling them.)

Note: Every 3 to 5 years, another development method is born - always better than the last one. In my opinion, OOSDLC is just another attempt to tame the wild, barely manageable programmer. No better and no worse than the old Modular Programming philosophy for Assembler 360.)

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