The concept of development is at its broadest a wide-ranging term andthere are a number of ways in which planning is concerned with devel-opment. The term development also carries a number of differentmeanings for different actors involved in planning. Development maybe both an outcome and mechanism or process for planning and theterm may be directed at physical, community, economic and environ-mental processes and outcomes. As such there is considerable linkageto be highlighted with a number of other key concepts included herewhich provide related insights to those covered here. In one sense the concept of development is as all-embracing as theconcept of planning as discussed in Chapter 2 and for similar reasons,given that planning is concerned with managing change, much of whichinvolves land and property development. The concept of developmentcan be revealed to mean different things in planning practices andinvokes not only the idea of physical change, but also the managementof economic activity and wider processes that involve community inter-action and support. Each of these three forms highlight the importanceof the label for planners and others and the need for it to be unpackedand explained. Moreover these emphases or apphcations of the termdevelopment overlap or reinforce with each other, making discussion ofthe different interpretations even more necessary.