Digital Navigation

This chapter introduces the concept of digital navigation, which for many will be synonymous with ‘ECDIS’ but in fact encompasses much more than just the use of ECDIS. This chapter discusses the basic conceptual and technical building blocks of modern digital navigation systems, before discussing the many interlocking layers of policy which govern digital navigation onboard contemporary oceangoing vessels. Throughout this book, any references to ECDIS will relate to the systems in use across the merchant fleet, unless specifically stated or when referring to purely naval functions and uses.