1 Associations. 2  Associations between actors and use cases are indicated in use case diagrams by solid lines. 3  An association exists whenever an actor is involved with an interaction described by a use case.
Benefits of Volunteering. Volunteering supports the Exploratorium and promotes hands-on science, artistic expression, and educational innovation. Volunteers contribute to the community while gaining additional experience and new skills. They get to know each other at gatherings and special events and by sharing their ideas and experiences via an e-mail list.
People volunteer for a wide variety of reasons, especially wanting to help others. But it's also OK to want some benefits for yourself from volunteering. Some people are uncomfortable with the notion that a volunteer benefits from doing volunteer work.There is a long tradition of seeing volunteering as a form of charity, based on altruism and selflessness.o today you may be the person with the ability to help, but tomorrow you may be the recipient of someone else's volunteer effort. Even now you might be on both sides of the service cycle: maybe you are a tutor for someone who can't read, while last month the volunteer ambulance corps rushed you to the emergency room.