Is Drupal for Intranet and Test Case Management ?

Hi,

I've read few forum threads so far on this Drupal community and found the Intranet site is possible. I would like know whether I can setup these requirements, but I don't know which module that are best suitable. Could you share your thoughts and experiences if any?

1. Need to setup Drupal Intranet Site
2. LDAP authentication so that user can login to this site using company login id
3. Able to Publish/Delete/Edit Test specification documents and Test Plans
4. Able to Publish/Delete/Edit Functional specification documents
5. The key functionality is tracking the status on each functional vs test cases.
5.1 Basically Functional Case will have 1 o 60 Test cases
5.2. User should be able to post "Pass/Fail/NotRun/NotAvailable" on each Test Case.
5.3. Based on each test case status, Functional Case quality should be automatically defined

So the flow should be like this.
1. Users will publish the Functional and then post related Test Specification document
2. Once the document is posted, user should be able to see each test case in rows and the columns should have Test Case ID, Test Case Title, Status with Pass/Fail/NotRun/NotAvailable subcolumns.
3. User will be able to mark each case based on the test results "Pass/Fail/NotRun/etc".
4. Based on the test results posted by users, functional case status and quality will be determined.

While looking for suitable module, I come across Case Tracker and Project modules. Please let me know if there are any other suitable modules.

tia
paradesi