  Advancements of the Web technology provide this opportunity for Internet of
Things (IoT) to take steps towards Web of Things (WoT). By increasing trend of
reusing Web techniques to create a monolithic environment to control, monitor,
and compose the smart objects, a mature WoT architecture is finally emerged in
four layers to be a solution for IoT-middleware. Although WoT architecture
facilitates addressing requirements of IoT in architectural or service aspects,
but the effectiveness of this solution is indeterminate to meet IoT-middleware
objectives. The most surveys and related reviews in this field just investigate
IoT-middleware and WoT separately and thereby, report some new technologies or
protocols on various middlewares or WoT models. In this paper a comprehensive
survey is proposed on common area of IoT and WoT disciplines by leveraging
Systematic Literature Review (SLR) as research methodology. This survey
classifies variant types of IoT-middleware and WoT architecture to specifies
their requirements and characteristics, respectively. Hence, WoT requirements
could be categorized by comparing and analyzing IoT-middleware requirements and
WoT characteristics. This research heavily reviews existing academic and
industrial contributions to select potential platforms (or frameworks) and
assess them against proposed WoT requirements. As a result of this survey,
strengths and weaknesses of WoT architecture, as a IoT-middleware, are
presented. Finally, this research attempts to open new horizon for the WoT
architecture to enable researchers to dig role of WoT technologies in the IoT.
