Question : Draw a:

1-Sequence diagram

2- Corresponding design class diagram

3-Use case diagram for the scenario:

My solution was:

Please Do tell what are the mistakes and how to fix them

Scenario:

A company is trying to find students for training or employment. The company should be registered in the system first to receive a username and password before the start of this process. The company enters specialty/ qualities of the student they are looking for using keywords. The system searches the database for students who have those specialties/ qualities. The system displays list of students showing who is a graduate or currently a student. The company selects any student from the list, the system displays the details of the selected student portfolio. If no students are found with the requested qualities, the system displays a message.

Search for students Register Display information Select Student > Searches from database Enter speciality/qualities Company System Display message Search for students Get details Display graduate/undergraduate student list Logout > Login Create profile Display details of thee selected student portfolio Delete profile Student Get offers, jobs Logout Student System Company Login() Verify() 1 Register() 1 I 1 1 Verify I I I Create Profile() DeleteProfile() I L 1 EnterSpeciality 1 I 1 SearchForStudents() 1 I 1 1 1 I DoCheckin() 1 *of speciality matches . DisplayList 1 GetDetails) 1 I I Provideinfo() 1 1 SelectStudent) 1 I 1 DisplaySelected Portfolio GiveOffer/Job() 1 I GetDetails) *of specialities that doesn't matches 1 1 DisplayMessage() 1 I 1 1 Logout Logout Student Company Company-ID : String Company-name : String Location : String Student-ID : String Name : String Education : String Email : String Status : String Profile : String SearchFor() 1 N Register() EnterSpeciality SearchFor Students() SelectStudento) GetDetails Logout() Login() CreateProfile() DeleteProfile() GetOfferDetails Logout() NI System > N System-ID SystemStoreData() 1 SystemStoreData() of student 1 DisplayListo) SearchFromDataBase() DisplaySelectedPortfolio StorageOfData() Display Message()