For estimating cost and effort of any software product, measuring
functionality of that application is an essential aspect for deciding
its value. However, IoT applications are not completely equivalent to
software solutions due to the inherent requirement of hardware
components. Also, as there has been a surge in development of IoT
applications, measuring the application’s cost and effort is required.
This article applied the traditional measurement methods for estimating
the appropriateness of an IoT solution before its adoption. In this
article, we have made an attempt to measure the functionality of an IoT
system using function point count technique (FPC). For evaluating it,
all the essential characteristics of typical IoT applications were
considered. Five different IoT applications namely IoT based healthcare,
smart environment monitoring, IoT based inventory management, smart home
security and smart home automation were considered and FPC values for
all these applications were calculated. The different values of function
points directly could be used to infer the applicability of the product.
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