智慧型代理人被廣泛使用在許多方面，如遊戲、學習、訓練等。擬真的環境與類人的行為，會讓玩家產生莫大的興趣。心理學上，動機分一般性動機與社會動機，一般性動機包含進食、飲水、休息等，智慧型代理人擁有它們，就能自行在虛擬社會下生存，不必刻意與其他代理人互動，但若擁有社會動機，其會驅使智慧型代理人去與其他人進行互動，讓智慧型代理人知道該如何與其他人產生互動也讓其行為有所依據。
這篇論文主要將社會動機納入BDI代理人的架構裡，提出一套產生慾望的流程裡，其中包含動機處理與評估。BDI代理人透過這流程，可以知道事件對自己內心造成多少影響，也可以根據社會動機產生社會限制與慾望，使其能與虛擬環境互動。

In the virtual environment, the virtual agent that has the general motivations is enough to live without interacting with the others. The virtual agent wants to interact with the others and it needs the social motivation as the foundation of its action. This thesis applies social motivations to the desire generation process of virtual agents. In the process, the mental state of virtual agent can respond to the event. According to social motivation, the virtual agent can generate the social constraints and desires to interact with the virtual environment.

1. Chang, P. H.-M., Chien, Y.-H., Kao, E. C.-C., and Soo, V.-W.: A Knowledge-based Scenario Framework to Support Intelligent Planning Characters. Intelligent Virtual Agents: 5th International Working Conference, IVA 2005, Kos Greece (2005)
2. Franken, R., E.: Human Motivation. Brook/ Cole Publishing Company (1982)
3. Georeff, M. P., Pell, B., Pollack, M. E., Tambe, M., Wooldridge, M.: The Belief-Desire-Intention model agency. In Proceeding of the 5th Internationl Workshop on Intelligent Agents V, Agent Theories, Architectures, and languages (ATAL), Paris France (1998) 1-10
4. Heckhausen, H.: Motivation and Action. Springer-Verlag (1991)
5. Johnson, W. L., Rickel, J. W. and Lester, J. C.: Animated Pedagogical Agents: Face-to –Face Interaction in Interactive Learning Environments. International Journal of Artificial Intelligence in Education 47-78
6. Kao, E. C.-C., Chang, P. H.-M., Chien, Y.-H., Soo, V.-W.: Using Ontology to Es-tablish Social Context. Intelligent Virtual Agents: 5th International Working Con-ference, IVA 2005, Kos Greece (2005)
7. Luck, M., d’Invenno, M.: Development and Application of a Formal Agent Framework. In Proceeding of the First IEEE International Conference on Formal Engineering Methods, Hirochima Japan (1997)
8. Luck, M., d’Inverno, M.: Motivated Behavior for Goal Adoption. In Distributed Artificial Intelligence (1998) 58-73
9. McClelland, D. C.: Human Motivation. Cambridge University Press (1987)
10. Nicholson, W.: Microeconomic Theory: Basic Principles and Extensions. The Dryden Press (1972)
11. Norman, T., Long, D.: Goal Creation in Motivated Agents. In M.J. Wooldridge and N.R. Jennings, editors, Intelligent Agents: Proceedings of the 1994 workshop on Agent Theories, Architectures, and Languages(ATAL-94), volume 890 of Lec-ture Notes in Artificial Intelligence (1990)
12. Savage, T.: The grounding of motivation in artificial animals: Indices of motiva-tional behvior. Cognitive Science Research, 4 (2003), 23-55
13. Schmill, M. D., Paul, R. C.: A Motivational System that Drives the Development of Activity. AAMAS: The International Conference on Autonomous Agents and Multiagent Syste (2002)
14. Sevin, E. D., Thalmann, D.: A Motivational Model of Action Selection for Virtual Humans. In Computer Graphics International (CGI), IEEE Computer SocietyPress, New York (2005)
15. Singh, M. P.: An ontology for commitments in multiagent systems: toward a uni-fication of normative concepts. Artificial Intelligence and Law, (1999), 97-113
16. Sloman, A., Croucher, M.: Why robots will have emotions. In Proceeding of the Seventh International Joint Conference on Artificial Intelligence, Vancouver, B.C., (1981) 197-202
17. Smith, M.K., Welty, C., McGuninnes, D.L (eds).: OWL Web Ontology Language Guide. W3C Recommendation. http:// www.w3.org/TR/owl-guide/ (2004)
18. The Sims 2, http://thesims2.ea.com, Maxix/Electronic Arts Inc, (2004)