Chapter 1 Introduction

In this chapter, some historical comments are made about the developments on conventional censoring schemes, viz., Type-I and Type-II censoring schemes. Then, formal definitions and some basic properties are provided for data obtained from both these censoring schemes, as well as a comparison of their expected termination times. A detailed review of the historical literature on hybrid censoring schemes is then provided, explaining various inferential results developed under these censoring schemes. Finally, the extensive literature that has developed on hybrid censoring, especially in the last two decades, and the need for a study of hybrid censoring schemes are both described.