OSM & Allegro

OSM Object-oriented Systems Modeling Components: –Object Relationship Model Object sets—lexical and non-lexical Relationship sets Generalization/specialization … –Object Behavior Model –Object Interaction Model

BandB OSM Model Instance in Allegro

ER Model Instance Type  RackRate Room Date  Guest Rate Discount Date  Discount Rate = (1 – Discount/100)  RackRate includes has Room RoomNr Rate has reservation for Guest is signed up for Activity Name Description Duration Date NrInParty Type Rack Rate Discount PackageDeal GuestNr Package

Conversion to OSM Hypergraph has reservation for is signed up for for includes Package NrInParty Duration Rate = (1 – Discount/100)  RackRate Room RoomNr Rate Guest Activity Name Description Date Type RackRate Discount PackageDeal GuestNr