Abstract: Email analysis and control system comprising: at least one server comprising an email exchange module and an email control module; and a plurality of users' computers running an email application and a client application communicating with the email application, the email control module comprising a rules database and a server program communicating with the client application, the client application configured to analyze each email sent by the user's email application, determine its importance or relevancy to each addressee according to the rules and act accordingly, the client application further configured to analyze each email received by the user's email application, determine its importance or relevancy to the user according to said rules and act accordingly.

Abstract: A method for emulating an Object-Oriented database (OODB) on a Relational database, comprising: define the desired data structure as objects for an Object-Oriented database; for each object, open an RDB table; for each object, in the RDB table, define relevant fields; implement an OODB interface with the user while storing the information in RDB tables. A method for emulating an Object-Oriented database (OODB) on a Relational database and for distinguishing between OODB objects, comprising: define the desired data structure as objects for an Object-Oriented database: for each object, open an RDB table: for each object, in the RDB table, define relevant fields; allocate a unique primary number object-id to each new object; allocate a second number to each new object, wherein its value is computed as the product of its object-id and its parent's object-id; implement a method to support the application of SELECT commands over the tables using the object-id and item-id numbers, to return the relevant objects.