Review the specifics of the Sandia Medical Devices case in Chapters 2–5, including the figures reproduced here. Perform these tasks:

1. Develop a context diagram encompassing all the use cases in Figure B-35.

2. Develop an event-partitioned system model encompassing all the use cases in Figure B-35. Assume that the classes and associations in Figure B-36 correspond to entities and relationships from a similar ERD.

3. Develop a DFD fragment and a process explosion for the View history use case. Assume that the system will automatically display the most recent glucose level, which is updated at five-minute intervals by default. Assume further that the user can ask the system to view glucose levels during a user-specified time period and that the levels can be displayed in tabular form or as a graph.