I believe the answer is color! :) (sorry! didn't see this until almost a day after you asked!)
Incremental backup needs a small amount of space and exists considered to have an involved restoration process.
<h3>What is Incremental backup?</h3>
A backup or data backup exists as a copy of computer data taken and stored elsewhere so that it may be utilized to restore the original after a data loss event. The verb form, directing to the process of doing so, exists as "back up", whereas the noun and adjective form is "backup".
An incremental backup exists a backup type that only copies data that has been changed or made since the previous backup activity was conducted. An incremental backup approach exists used when the amount of data that has to be protected stands too voluminous to do a full backup of that data every day.
An incremental backup exists one in which successive copies of the data contain only the portion that has been modified since the preceding backup copy was made. When a full recovery is required, the restoration process would require the last full backup plus all the incremental backups until the point of restoration.
Hence, Incremental backup needs a small amount of space and exists considered to have an involved restoration process.
To learn more about Incremental backup refer to:
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The technique I used to test the requirement is equivalence partitioning.
<h3>Equivalence Partitioning-</h3>
Generic test data is considered where all the test data satisfies the conditions provided in the problem. Such that,
- ADGrade A --> TA=25 LC=5
- ADGrade B --> TA=20, LC=3
- ADGrade C --> TA=8 LC=2
- ADGrade D --> TA=2, LC=1
- ADGrade null (n/a)—> TA=0, LC=0
Where:
- TA represents totalAccounts,
- LC represents loanTypeCount,
- ADGrade represents accountDiversityGrade
If we are to combine the test data collected above, we would obtain the entire set of test data.
With this in mind, the minimum number of users that are required for testing the requirement is 5.
Read more about requirement testing here:
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The systems development life cycle (SDLC) is a conceptual model used in project management that describes the stages involved in an information system development project, from an initial feasibility study through maintenance of the completed application. SDLC can apply to technical and non-technical systems.
