Figure 6. Useful life of the product in terms of batches
Source: Prepared by author
Figure 7. Example of angular coefficient
Source: Maschen – Own work, CC BY-SA 3.0,
https://commons.wikimedia.org/w/index.php?curid=27658172
Let’s verify this statement in the context of a software upgrade for the government
body.
If the size of the typical budget of a public authority and the planned amount of
expenses for the purchase of new software for each year are shown in table 2. On the
vertical axis the budget amount is set and the horizontal line sets the amount of the
costs (Fig. 8).
2019
2020
2021
2022
2023
2024
2025
2026
2027
2028
2029
2030
2031
2032
2033
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
Stage 1
Stage 2
Stage 3
Stage 4
Stage 5
Stage 6
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