2Case StudyThe roles of business analysts have evolved over the years, how does the Big Data impactthese roles? The concept of Big Data is important to business analysts because Big Data has on impact on business complexity as well as the particular roles of the business analyst (BA). With the surge of Big Data, the demand for business analysts are rising. This poses a need to define the data needs for different business areas as well as business analysts need support of relevant facts and figures to make informed decisions. This essay will explore various roles, constraints, and characteristics of business analysts as well as summarize the relationships of BAs is a functional business unit by showing how they fit into the organizational structure. What are some barriers and constraints associated with BAs in functional business units? With Big Data on the rise, the roles and responsibilities have changed shape with advancing technological business era. One area where there could be a barrier is where there is a lack of clarity on the focus of a data mining project. A challenging aspect of any project is communicating clearly the project objectives and when dealing with various department needs, confusion can rise. In order to remain a functional business unit, all objectives to all working parties should be congruent. Inadequate time allotment could also be a factor of constraint in therole of a BA (Bradley & et al., 2017). Not all projects have the same time requirements. A lack of time can serve as a major impediment on delivering completed tasks. Time constraints can lead to incomplete documentation and leave the BA trailing on time. Conflict among stakeholders can also serve as a barrier (Lou & et al., 2017). For example, not all stake holders work well with collaboration and find this difficult.