For decades, solving the software crisis was paramount to researchers and companies producing software tools. The cost of owning and maintaining software in the 1980s was twice as expensive as developing the software.[citation needed]
- During the 1990s, the cost of ownership and maintenance increased by 30% over the 1980s.
- In 1995, statistics showed that half of surveyed development projects were operational, but were not considered successful.
- The average software project overshoots its schedule by half.
- Three-quarters of all large software products delivered to the customer are failures that are either not used at all, or do not meet the customer’s requirements.
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