Dama Chapter 12 (metadata management)

One 、 Preface

This article is about 《DAMA Data management knowledge system guide 》 The first 12 Zhang's reading notes , It mainly describes the related contents of metadata management . This chapter is one of the most important chapters in the book , It can even be said to be the whole Foundation of data management （ according to CDMP The proportion of examination certification is as high as 11%）. Because of the importance of this chapter , Therefore, the summary of this chapter will be more detailed , The full text about 8000 word , If you have enough time, I suggest you to PC Read at the end .

Two 、 Content structure

This chapter starts with the role of metadata management 、 Purpose 、 Starting from business drivers , Explain the necessity and principles of metadata management ; And the related concepts of metadata 、 Metadata classification 、 source 、 Explain the architecture one by one , Let readers have a basic understanding of the activities of metadata ; Then starting from the activity practice of Metadata Management , Explain the relevant steps ; And the tools needed for the whole process 、 The methods used are summarized , Finally, it summarizes the implementation guidelines of the whole management activities , Put forward the methods and evaluation metrics for metadata governance . The overall content structure is shown below ：

3、 ... and 、 primary coverage

1. introduction

The most common definition of metadata is “ Data about data ”, simply , But it makes it difficult for us to deeply understand the content of metadata . Actually , There is a wide range of information that can be classified as metadata