  The workflow is a general notion representing the automated processes along
with the flow of data. The automation ensures the processes being executed in
the order. Therefore, this feature attracts users from various background to
build the workflow. However, the computational requirements are enormous and
investing for a dedicated infrastructure for these workflows is not always
feasible. To cater to the broader needs, multi-tenant platforms for executing
workflows were began to be built. In this paper, we identify the problems and
challenges in the multiple workflows scheduling that adhere to the platforms.
We present a detailed taxonomy from the existing solutions on scheduling and
resource provisioning aspects followed by the survey of relevant works in this
area. We open up the problems and challenges to shove up the research on
multiple workflows scheduling in multi-tenant distributed systems.
