Can someone me on drawing er and use case diagram on following scenarios.

* develop a system to automate membership details and time allocation for swimmers in a swimming club. all users should take membership and pay monthly for usage. usage could be with a coach or without.

* part of the process of course registration at ousl for a new applicant

when an applicant requests to register for a course, an officer from student affairs verifies whether he/she has relevant entry qualifications and paid the fees. if certificates to show entry qualifications are not brought the applicant is asked to bring them and return. if the fees are not paid the applicant is directed to the finance division to make the payment and come. to register for a course, the system checks whether the course prerequisites are satisfied and let the student register for the particular course.
a student is given a student id number and a registration number for the particular programme. all courses have unique course codes, titles, credit ratings and a set of pre-requisites.

What do the principles of notice, choice, onward transfer, and access closely apply to? a. privacyb. identificationc. retentiond. classification

Read this excerpt from helen keller’s autobiography, the story of my life. have you ever been at sea in a dense fog, when it seemed as if a tangible white darkness shut you in, and the great ship, tense and anxious, groped her way toward the shore with plummet and sounding-line, and you waited with beating heart for something to happen? i was like that ship before my education began, only i was without compass or sounding-line, and had no way of knowing how near the harbour was. "light! give me light! " was the wordless cry of my soul, and the light of love shone on me in that very hour. . the morning after my teacher came she led me into her room and gave me a doll. the little blind children at the perkins institution had sent it and laura bridgman had dressed it; but i did not know this until afterward. when i had played with it a little while, miss sullivan slowly spelled into my hand the word "d-o-l-l." i was at once interested in this finger play and tried to imitate it. when i finally succeeded in making the letters correctly i was flushed with childish pleasure and pride. running downstairs to my mother i held up my hand and made the letters for doll. i did not know that i was spelling a word or even that words existed; i was simply making my fingers go in monkey-like imitation. in the days that followed i learned to spell in this uncomprehending way a great many words, among them pin, hat, cup and a few verbs like sit, stand and walk. based on this excerpt, which words best describe helen keller?

Which demographic challenge is europe currently experiencing? a. an aging and decreasing population b. a baby boomc. an unequal distribution between males and females d. a large group of teenagers moving through the school system(i chose a but i'm unsure)