HR Employee Module

For GSOC, I was thinking of writing a module for the internal human resources side of a company. I don't know how many people/companies use Drupal as a tool to manage a company and I don't know if there exists similar modules out there for this. The module would include (up to) three major components:

Employee Management:
You will be able to manage all current and previous employees including their info, employment, wage info, etc. There could be an employee directory that list employees and their contact information, etc.

Timesheet:
All employees will be able to log into the site and fill out their timesheet (if applicable). Timesheets can be submitted by managers and then sent to Finance or whatever so that employees can get paid.

Jobs Application/Hiring Workflow:
You can create job openings and have people apply. Applications can be emailed and an online interface can be used to manage the workflow of processing an application, to interviewing, to hiring the person.

Obviously this idea still needs a lot of work. I know that the description is a little vague but there are a lot of things to consider in a module like this. The tough part about doing something like this is that the module has to be specific enough that companies will want to use it but abstract enough that it can be useful for many different companies.

Other considerations:

• LDAP integration would be a nice feature to have.
• There is a job search module that perhaps could be used in conjunction.

Thoughts? Ideas?

Thanks!