Final answer:
To develop a user profile for SDI (Selective Dissemination of Information), several important pieces of information are required, including demographic information, interest and preference information, and search history and feedback.
Step-by-step explanation:
To develop a user profile for SDI (Selective Dissemination of Information), several information pieces are required:
- Demographic information: This includes details about the user's age, gender, location, and educational background.
- Interest and preference information: This involves identifying the user's topics of interest, preferred sources of information, and preferred format for receiving information.
- Search history and feedback: Analyzing the user's search history and collecting feedback on the relevancy and usefulness of the disseminated information helps refine the profile.
By gathering and analyzing these types of information, SDI systems can provide users with personalized and relevant information based on their specific needs and preferences.