First Step for Ideal Implementation

HI All,

I would like to consolidate a list of best practices and common mistakes done in implmentation projects.
I think you people might have come across different best practices and some amazing workarounds.
I request all of you to provide me your valuble inputs to put a road map for a ideal implementation.
From now onwards I will be sending different best practices and Process so that we can evalutate the pros and cons of each.

First of all let me list different techonologies and tools required at different stages of implementation.
From now onwards we can evaluate each technology and tool for different types of situations.

Data loading stage:
1.sql loader
2.GUI tools like DATA loader
3.Oracle External Tables(from 9i)
4.WebADI
User interface Development:
1.Forms6i
2.OAF(Jdeveloper) Reporting Tools:
1.Reports Builder
2.XML Publisher
3.PL/SQL Reports
4.Oracle Discoverer
Business logic implementation:
1.Work Flow
2.AME(Approval's Management) Outbound interfaces:
1.EDI
2.XML Gate way
3.Custom made outbound interfaces using PL/Sql
Inbound Interfaces:
1.Open Interfaces
2.API’s
3.EDI
4.XML Gateway(Not Sure)
Others:
1.Oracle Alerts
2.OAF Personalization
3.Forms Personalization
Tools:
1.TOAD
2.SQL Client
3.PL/SQL Developer

Code Formatting Tools:
1.Formatter Plus
2.PL/SQL Developer Formatter Configuration Tools:
1.VSS
2.CVS