做超市point of sale system應該用OODBMS 還是RDBMS ?

1) 甚麼是OODBMS
Object-Oriented DBMS (OODBMS) are DBMS which are based
on an Object-Oriented Data Model. The great advantage of OODBMS is that it is not necessary to transform the UML classes into a logical schema (e.g., relational). object oriented database, information is represented in the form of objects as used in Object-Oriented Programming. OODBM good for storing complex descriptions (e.g., a plant schematic), RDMSs appropriate for simple, “flat” data. When database capabilities are combined with object programming language capabilities, the result is an object database management system (ODBMS). An ODBMS makes database objects appear as programming language objects in one or more object programming languages. An ODBMS extends the programming language with transparently persistent data, concurrency control, data recovery, associative queries, and other capabilities.
2) 甚麼是RDBMS
RDBMS can handle >1010 records, OODBMS up to 107. A relational database management system (RDBMS) is a database management system (DBMS) that is based on the relational model as introduced by Edgar F. Codd. Relational databases are the most common kind of database in use today (assuming one does not count a file system as a database). RDBMS control the DB market (>90%), OODBMS own <5% of the market. Most commercial RDBMS come with an “Object-Relational”extension which implements an object database on top of a
RDBMS.
3) 做超市point of sale system應該用OODBMS 還是RDBMS ?
咁要看你用乜LANGUAGE, 有多少時間做? OODBMS的DEVELOPMENT時間長好多,要DESIGN的工作比較多和重要,CODE REUSE較強,理想上OODBMS較好, 但RDBMS可以話較實用,好快有得用,請人做MAINTENACE也較易,但我建議如果不用XML,用OODMBS也無謂, 不如用返RDBMS,如果XMS,可以用OODBMS玩玩,做第一部份出來看看, Data Access Layer兩種也玩得~

OODBMS , it is new and latest