The joint contribution is 20%; ALPHA and BETA each contribute 80% (they are graded separately).

Section Marks Area Sample Categories Discussion
Diagram        
  4 Details
Many Sparse None
The diagram should look sufficiently complicated, with a fine assortment of attributes.
  3 Clarity of diagram
Outstanding Some problems Unsightly
The diagram should be aesthetically pleasing, and related material should be positioned together (except that ALPHA and BETA's contribution should be separated).
Overview        
  5 Model description
Outstanding Good Adequate Poor None
There should be a good general description of the mini-world.  The details will be covered in subsequent sections.
  4 Design Decisions
Detailed Some Missing Poor None
Major design decisions should be discussed.
  4 Assumptions
Complete Weak None
A design is often driven by assumptions.  A lucid presentation of the major assumptions and limits to the model is an important part of the documentation.
ALPHA        
  10 Keys
Documented Overspecified Underspecified
Keys should be chosen appropriately.
  10 Attributes
Comprehensive Adequate Few
Attributes should be sufficient for modelling the mini-world as described in the overview. 
  30 Contribution
Many-one Many-many Ternary
Disjoint Composite Domain
Multivalued    
Document each please.
  10 Entity types
Outstanding Good Some None
Each entity type should be discussed, addressing the need for the entity type and describing its attributes.   Note that this overlaps with attributes above.
  10 Relationship Types
Outstanding Good Some None
Each relationship type should be discussed, addressing the need for the relationship type and the participation/dependence and kind of relationship type.
  10 Physical
Good Some Problems  None
Mapping to the physical schema.
BETA        
  10 Keys
Documented Overspecified Underspecified
Keys should be chosen appropriately.
  10 Attributes
Comprehensive Adequate Few
Attributes should be sufficient for modelling the mini-world as described in the overview. 
  30 Contribution
One-one One-many Relationship Attribute
Overlapping Check Weak entity type
Reflexive    
Document each please.
  15 Entity types
Outstanding Good Some None
Each entity type should be discussed, addressing the need for the entity type and describing its attributes.   Note that this overlaps with attributes above.
  15 Relationship Types
Outstanding Good Some None
Each relationship type should be discussed, addressing the need for the relationship type and the participation/dependence and kind of relationship type.
  10 Physical
Good Some Problems  None
Mapping to the physical schema.