<div dir="ltr"><br><div class="gmail_extra"><br><div class="gmail_quote">On Thu, Nov 24, 2016 at 5:26 PM, Michael Kleinhenz <span dir="ltr"><<a href="mailto:kleinhenz@redhat.com" target="_blank">kleinhenz@redhat.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi all,<br>
<br>
the updated data model is now available here:<br>
<br>
<a href="https://www.lucidchart.com/invitations/accept/9eb41de4-4882-4f69-995f-8dd57a2e4a07" rel="noreferrer" target="_blank">https://www.lucidchart.com/<wbr>invitations/accept/9eb41de4-<wbr>4882-4f69-995f-8dd57a2e4a07</a><br>
<br>
Please review it. It should contain all current knowledge and some changes:<br>
<br>
- everything in red is changed from the devdocs version. Mostly<br>
corrections like<br>
inverse or wrong cardinalities.<br>
<br>
- added directions for the relations. Please review them closely.<br>
<br>
- added 0..* notation for cardinalities that also tell if a relation<br>
can be zero.<br>
<br>
Open question from my side:<br>
<br>
- there is a relation between Login and Work Item (the green one). I think<br>
this relation should be between User and Work item.<br></blockquote><div><br></div><div>Linking Work Items with Users would be correct IMHO. From a technical view point, I'd recommend this because the linkages between Who did What would never be lost. Interpreting "Logins" literally, I'd expect logins to be deleted at some point, because they are events, thereby severing the linkage. One may argue that users would also be deleted, but I'd argue for implementing logical deletion of users, so that when users are deactivated/deleted, the system continues to record the user who created, assigned, or updated the WI.</div><div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<br>
Thanks,<br>
Michael<br>
<br>
--<br>
Michael Kleinhenz<br>
Principal Software Engineer<br>
<br>
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