Most companies simply don??™t have such resources. Today, such resourceintensive
approaches have been replaced by higher-level and more automated
solutions for building tool support for DSM. We will inspect the tooling side
further in Chapter 14.
In practice, the initial costs are not large since most of the developers do not
participate at all in building a DSM solution. They may continue application
development with current practices until the DSM solution is available. Figure 2.2
shows an alternative way to look at the development costs: comparative costs
including DSM initial investment costs.
After the initial introduction phase, the development costs decrease signi?¬?cantly
thanks to improved productivity, fewer errors, being able to get feedback earlier, and
so on. Although the development costs can decrease immediately, in practice,
companies rarely follow the big-bang approach. A more common scenario is that the
company ?¬?rst pilots the DSM solution and then gradually introduces it into the
organization??”usually ?¬?rst in some domains or subdomains. We describe the
guidelines for the DSM de?¬?nition process in Chapter 13.
As only a few people participate in the DSM creation, the costs are usually very
small compared to overall costs. The largest investment is usually in allocating
domain experts and experienced developers for the project??”people who are already
key resources.
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