Trustworthiness of open source, open data, open systems and open standards

A compelling direction of improving trustworthiness of software-based systems is to open their ingredients: Open source software, open data sets, open system interfaces like open technical standards allow constructing major or up to all elements of a software-based systems. That gives means to use the wisdom of the crowd to assess and evaluate the quality, security and trustworthiness of software components. In addition, the software components can mature along a continuous feedback and revision loop with the crowd.