diff --git a/models/allocations b/models/allocations
new file mode 100644
index 000000000..eeb4a1b3f
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+++ b/models/allocations
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+-- Reconsider all attributes commented out with "--?". Those might be added later, but are not important for now
+Allocation -- attributes with prefix staff- affect lecturers only, but are invisble to students
+    name                (CI Text)
+    shorthand           (CI Text)       -- practical shorthand
+    term                TermId
+    school              SchoolId        -- school that manages this central allocation, not necessarily school of courses
+    description         Html Maybe      -- description for prospective students
+    staffDescription    Html Maybe      -- description seen by prospective lecturers only
+    linkExternal        Text Maybe      -- arbitrary user-defined url for external course page
+    capacity            Int Maybe       -- number of allowed enrolements, if restricte
+    staffRegisterFrom   UTCTime Maybe   -- lectureres may register courses
+    staffRegisterTo     UTCTime Maybe   -- course registration stops
+    -- staffDeregisterUntil not needed: staff may make arbitrary changes until staffRegisterTo, always frozen afterwards
+    staffAllocationFrom UTCTime Maybe   -- lecturers may accept applicants from this day onwwards or prohibited
+    staffAllocationTo   UTCTime Maybe   --
+--? staffMaterial       Bool            -- courses may provide files for prospective students. ?Why would we ever disallow this? Can be easily circumvented anyway.
+--? staffUpload         Bool -- or UploadModeDescr -- ?Why would want to prevent staff from asking for application-files? Can be circumvented anyway.
+    -- Student register for this allocation
+    -- canRegisterNow = maybe False (<= currentTime) registerFrom && maybe True (>= currentTime) registerTo
+    registerFrom        UTCTime Maybe   -- student applications allowed from a given day onwwards or prohibited
+    registerTo          UTCTime Maybe   -- student applications may be prohibited from a given date onwards
+    -- deregisterUntil not needed: students may withdraw applicants until registerTo, but never after. Also see overrideDeregister
+    registerSecret      Text Maybe      -- enrolement maybe protected by a simple common passphrase
+    -- overrides
+    registerByStaffFrom UTCTime Maybe   -- lecturers may directly enrol/disenrol students after a given date or prohibited
+    registerByStaffTo   UTCTime Maybe
+    registerByCourse    UTCTime Maybe   -- course registration dates are ignored until this day has passed or always prohibited
+    overrideDeregister  UTCTime Maybe   -- course deregistration enforced to be this date, i.e. students may disenrol from course before or never
+    -- overrideVisible not needed, since courses are always visible
+    TermSchoolAllocationShort  term school shorthand    -- shorthand must be unique within school and semester
+    TermSchoolAllocationName   term school name         -- name must be unique within school and semester
+
+AllocationCourse
+    allocation          AllocationId
+    course              CourseId
+    applicationText     Bool         -- lecturer will read application texts supplied by users
+    applicationFiles    UploadMode   -- lecturer wants to receive course specific application files?
+    UniqueAllocationCourse allocation course
+
+AllocationCourseFile
+    allocation          AllocationId
+    course              CourseId
+    file                FileId
+
+--? AllocationUser --? not needed requestCourses::Int bette encoded per course: student wants only 1 course, except if allocation in course y is possible
+--?     user                UserId
+--?     allocation          AllocationId
+--?     requestCourses      Int          -- >0, number of requested courses
+--?     UniqueAllocationUser allocation user
+AllocationUserCourse
+    allocation          AllocationId
+    user                UserId
+    course              CourseId
+    text                Html    Maybe -- free text entered by user
+    priority            Int           -- positive  positive priority, higher number means higher priority
+    totalCourses        Int           -- positive, number of total allocated courses for this user must be <= than this number
+    ratingVeto          Bool
+    ratingPoints        Points  Maybe -- "Just" does not mean done; not yet visible to participant
+    ratingComment       Text    Maybe -- "Just" does not mean done; not yet visible to participant
+    UniqueAllocationUserCourse allocation user course
+
+AllocationUserFile -- supplemental file for application by a user for a certain course, not unique
+    allocation          AllocationId
+    user                UserId
+    course              CourseId
+    file                FileId
+
+--? not sure we really want to track this, might be problematic; also CourseParticipant would need to track if it was created by allocation or through other means!
+AllocationDeregister -- user deregistered from an allocated course
+    user                UserId
+    allocation          AllocationId
+    course              CourseId
+    time                UTCTime
+