Extended ER model of an Educational Institute
- 1. Extended ER Project Educational Institute MIS 631 WS Prof. Joseph Morabito Group 4 Rohan Puthran Monish Bangera Mihir Kadam Aashi Jain Mayank Vyas 3
- 2. Table of Content + Project Scope + High level Approach and Central Model + Entity Relationship Models + Information Models + Data Models + Contracts 4
- 3. Project Scope + The project mainly focuses on how the data is handled in any educational institution. + The educational institution comprises of there main buildings and college of studies (phases1,2&3) . + Each Building is dedicated for one college of study i.e., Engineering, Hotel Management and Management & MBA. + Every college has its own way of operation, organizational architecture and data structure. 5
- 4. High level Approach Educational Institute / University Engineering (Phase1) Hotel Management (Phase2) Management/ MBA (Phase3) • Courses • Staff • Departments • Students • Student Committee • Staff • Other Facilities • Students • Student Committee • Courses • Staff • Students • Student Committee 6
- 5. Central Model of the Educational Institution 7
- 6. Entity Relationship Model (Engineering) 8
- 9. Entity Relationship Model (Hotel Management) 1 1
- 10. Information Model (Hotel Management) 1 2
- 11. Data Model (Hotel Management) 1 3
- 12. Entity Relationship Model (Management/MBA) 1 4
- 15. Contracts + Contracts define and communicate rules of behaviour. + Contracts exist at all levels in systems analysis, design, and implementation; in fact, contracts exist at all levels in an organization and in society–We use contracts all the time – e.g., to purchase real estate. + Though properties of contracts may differ based on their intended uses, contracts have some properties in common: The essential property is that a contract explicitly and declaratively defines a behaviour (or in info systems, we say an operation). + A contract should describe–What the operation must achieve and under what circumstances (semantics) and its signature (parameters). 1 7
- 16. Specifications of Employee on-boarding • INVARIENT + An employee belongs to at most one department + A department consists of zero to many employee • PRECONDITION + The department and employee exists • POSTCONDITION + The employee belongs to the department. + The department has all the old employees and the additional new employee. (increment employee count by one) • TRIGGER + The department has approved an employee on-boarding request 1 8
- 17. Specifications of student on-boarding • INVARIENT + A student belongs to at most one field of specific college studies class. + A specific course class consists of zero to n number of students (120 in case of engineering field class) • PRECONDITION + The course class and student exists • POSTCONDITION + The student belongs to one class of course + The course class has old students and the additional new students for new class of same course. • TRIGGER + The admission department has approved the student on-boarding request 1 9
- 18. Specifications of granting Student Scholarship • INVARIENT + A student belongs to at most one field of engineering studies class. + An engineering field class consists of zero to 120 students • PRECONDITION + The engineering field class and student exists • POSTCONDITION + The student belongs to one field of engineering + The field of engineering has old students and the additional new students. + The department has all the old employees and the additional new employee. (increment employee count by one) • TRIGGER + The admission department has approved the student on-boarding request 2 0
- 19. Specifications for Conducting an Exam • INVARIENT + The examinations are conducted for all the students at the end of every semester. + The examination follows the standardized college format. • PRECONDITION + A student belongs to at most one course of studies class. + The syllabus is taught completely to the students and the examination fees is paid. • POSTCONDITION + The student is allowed to give the examination. • TRIGGER + The examination is conducted as scheduled following the guidelines of the college and institution. 2 1
- 20. Specifications for student to complete under graduation (engineering) • INVARIENT + The Student belonged to at most one field of engineering studies + The Student has qualified the requirements for under graduation • PRECONDITION + A student belongs to at most one field of engineering studies class • POSTCONDITION + The student has fulfilled the requirements of the undergraduate engineering studies + The student is an alumni of the college/university • TRIGGER + The the student is qualified as an undergraduate in the field of engineering. 2 2
- 21. Specifications for student on-boarding for “Student’s Committee” • INVARIENT + A student belongs to at most one course of studies class. + A student has a position in the student’s committee • PRECONDITION + A student belongs to at most one class of course studies. + A student qualifies the requirements for the position of the student’s committee. • POSTCONDITION + A position in the council is held by the student. • TRIGGER + The fulfillment of the requirement qualifies the student to take the position in the council 2 3
- 22. Thank you ! 2 4