Your Wish is My Command

19.6 Conclusion 383

For this to work, the definition of "move to the next object to the left"

and "move to the next object down" may need to be redefined for each ap-

plication. But given the ability to do so, we can make real the user's percep-

tion that all grids are basically the same, despite the artificial barriers that

separately programmed applications place against this generalization.

11 .9° 6 Conclusion

We can ask several questions when exploring a new perspective such as that

offered by a visual generalization approach. For example,

how can it con-

tribute in a way that other existing perspectives are unable ...