Background: The PRECEDE-PROCEED Model is an effective and adaptable program planning tool that has been widely used in the design, implementation and evaluation of health promotion programs. Objective: To retrospectively apply the constructs of the PRECEDE-PROCEED Model to a community-based youth fitness and nutrition summer camp program (Champ Camp) and to identify and describe how the program...

In this paper, we propose a general spatially-partitioned temporal operation model, called 3D-TOM, and partition-based join algorithms for various types of temporal join in the proposed model. The temporal operators addressed in this paper include overlap, precede, follow, and equal. Some factors which aaect the performance of the proposed method are also discussed .

In this paper, we propose a general spatiallypartitioned temporal operation model, called 3D-TOM, and partition-based join algorithms for various types of temporal join in the proposed model. The temporal operators addressed in this paper include overlap, precede, follow, and equal. Some factors which a ect the performance of the proposed method are also discussed.

One of the precepts of traditional models of software development is that detailed specifications, that is, what precisely the software should do, must precede the design and then creation of the code. This paper details scenarios of non-conformance to this model, and explores the issues that arise from the failure of the model.