Discuss unary, binary, and ternary relationships
What will be an ideal response?
The number of entity types participating in a relationship defines the degree of the relationship. The most common relationships are unary, binary, and ternary. A unary relationship is a relationship between the instances of one entity type. An example of this type of relationship is the person entity. One person (or instance) can be married to another person (or instance). The binary relationship is a relationship between instances of two entity types. An example of this relationship is of a supplier and part. The binary relationship is the most common type of relationship encountered in data modeling. The ternary relationship is a simultaneous relationship among instances of three entity types. An example is a supplier shipping a part to a warehouse.
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Identify a step that should be taken to overcome the flaws of the instructional system design model.
(a) A systematic training design should be used to increase the benefits that can be realized. (b) The training design process should be completely rigid to meet business needs. (c) Each step of the training design process should be performed separately. (d) The introduction of new technologies should focus on the application of the training design model.
A DES key is ________ bits long
A) 40 B) 56 C) 100 D) 128