Please answer the following questions in in-depth detail. Please mark your answer as the same number as the question (Question 1 - Answer 1) for easy access and consistency. List all your references used for your answers.

1. What conditions are necessary for the successful implementation of performance budgeting?
2. Does using a current service baseline appear to help or confuse budget discussions and decision making?
3. What is a zero-based budget? Describe its purpose and use in the public sector.
4. What are the various ways of measuring the performance of an organization so that it can be tied to budget allocation?
5. What kind of information is required to undertake line-item budgeting? Who possesses this information?