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+ Aro Home work #1 Complete the following: . If all subclasses in a specialization have membership condition on same attribute of the superclass, specialization is called If no condition determines membership, the subclass is called ........allows an entity not to belong to any of the subclasses Shown in EER diagrams by a single line. .................... start with an entity type and then define subclasses of the entity type by successive specialization. .........................start with many entity types and generalize those that have common properties. ..Called a bottom up conceptual synthesis process. called a top down conceptual refinement process Attributes of a subclass are called.. If all subclasses in a specialization have membership condition on same attribute of the superclass, specialization is called