what is the work flow of Search Engine Optimization?

Question From User - Answers in Comments.

hi friends i m following bellow work flow for my work is there any suggestions for me?
On-Page Optimization Services – will increase website’s usability…

Content Optimization services
Keyword Research and analysis services
Meta-Tags writing services
Link Navigation
Robots.txt
ALT Tags
Site maps creation both HTML and XML

Off-Page Optimization services – is the way to get back links and inbound links. As well as Keyword Rankings.

Search Engine Submissions services
Manual Directory Submissions services
Article Submission services
Press Release Submission services
Link Building services (One-Way Linking, Two-Way Linking(reciprocal), Three-Way Linking
Participation's in Forums and Google Group discussions
Important News, Classifieds, Yellow Pages Submission services
Social networking and bookmarking services

if i am missing anything in this flow ?