Unimportant Corrections

p4, pa1, “software interact” should be “software interacts”.p7, “focussing on” strike “focussing”.p7, “first-class” should be “first class of”.p10, pa3, strike “there is connection”.p12, pa2 “increasing” should be “increasingly”.p13, pa1 “opennessed” should be “openness”p23, reference to (Figure 1.12) could be much earlier in this section.p28, pa3, “users looking” should be “user looking”.p30, pa1, “in some worlds” …