In this work we are interested in placing test components for Internet of Things (IoT) and Smart Cities. Our work is inspired by similar works aiming the placement of application components in Fog computational nodes. First we give an overview about the decision variables to consider. Then, we define several types of constraints that may be included in the placement problem. Moreover, We list a set of possible Objectives Functions to maximize or minimize. Finally, we propose some algorithms and techniques to solve the considered Test Component Placement Problem (TCPP) taken from the literature
