$($a$)$ Create an Entity Relationship diagram that captures the information given in Text $1$

about a conference management system. Be certain to identify all entities, attributes,

primary keys, relationships and their cardinality. State any assumptions you make.

EasyConf is a Conference Management System used by several universities in

Mauritius. A conference is organized by a university, and focuses on a particular

research area. A conference often involves several sessions. A conference is

attended by several participants.

A conference is characterized by a conference number and a name. Every research

area is identified by a unique name. A session is characterized by a session

identifier and a name, and focuses on a specific research theme. A university is

characterized by a university code, name and address. A participant is

characterized by a participant number, their name, and the university he$/$she is

affiliated. A participant is affiliated to a single university only.

The following information should also be taken into consideration: the duration of

the conference and the venue of the conference. Moreover, participants who are

students benefit from a special registration price.