A business analyst created requirements for production of a product extract file for several systems. After reviewing the complex systems and dividing the processes into manageable tasks, the business analyst is able to identify the tasks required to implement the deliverable.
Which analysis technique has the business analyst used?

The business managers had clearly slated that the delivered website must simultaneously accommodate millions of users around the globe. However, within the first week of the production launch, the website crashes frequently.
This situation could have been averted if:

During the initial phase of a project, which technique could assist in identifying and categorizing the stakeholders?

A business analyst and stakeholders have completed documentation of the acceptance criteria for the requirements of a new vehicle leasing database. A concern is raised that some of the key performance indicators may not validate the desired benefits of the implementation.
What should the business analyst do to ensure that the business need can be validated?

A business analyst has incorporated all the relevant feedback from stakeholders in the business analysis plan.
Which next step should the business analyst take?