The activities developed in this paper were aimed at providing an awareness of the elements that should be considered in quality learning objects instructional design for elearning systems. We thus propose our own LO definition taking into account aggregation level number 2. On this basis, we analyze cognitive theories for promoting learning and we explain issues relating to the LO characterist...

Decision makers have become accustomed to making decisions using summarized or aggregate data through the use of financial and accounting reports. The use of aggregate data minimizes the effects of information overload on a decision maker; however it may not provide a decision maker all the details he or she would like to have. The effects of aggregated versus detailed information presentation ...