Some other graph shows the workload of up to 50% was spent on the maintenance of those changes will always be the Bug above.Bug in the development phase if these are excluded, then the workload could be saved.When considering software maintenance costs may be higher than the initial development costs several times higher when 50% of this potential for savings in software maintenance costs throughout the software life cycle costs will have a significant impact.
Conclusion
Experience has shown that a conscientious unit test method will be found in some stage of software development, many of the Bug, and modify their cost is very low.In the later stages of software development, Bug discovery and change will become more difficult, and to spend a lot of time and development costs.Must be amended whenever a complete regression testing, as early as possible in the life cycle of software products for testing the efficiency and quality will be the best guarantee.In the provision of a tested unit, the system will greatly simplify the integration process.Developers can focus on the interaction between units and global functions to achieve, rather than into the cell filled with a lot of Bug being unable to extricate themselves.
To test the effectiveness of play to maximize the key to choosing the right testing strategy, which includes the complete concept of unit testing, as well as good management of the testing process, as well as the proper use of tools such AdaTEST and Cantatato support the testing process.These activities can produce this result: cost of lower development costs in the case of more stable software.Further advantage of simplifying the maintenance process and reduce life cycle costs.Effective unit testing is part of the implementation of global quality culture, and this quality culture for software developers will bring unlimited business opportunities.