Requirement 7

Figures shows a cloud with a blue contour and rectangular blue symbols that represent a storage unit.

Device must have data storage

 RequirementSpecification

7
Must be able to store dataData storage of at least 180 bytes equivalent to 12 results of 15 string characters. 
Justification Patients with chronic diseases need to track patients their health and retrieve past test results. This is assuming that a patient will take one test per month during a year.

Varification:

To determine the number of bytes in the memory card:

# bytes: bits of memory/ 8

To find numbers of bytes based on string size:

# bytes = # string’s characters x 1 bytes