Operation of Search architecture.

Question

Good morning MS community,
 So far i have been done the SharePoint Server 2013 search architecture:
http://technet.microsoft.com/en-us/library/cc263199%28v=office.15%29.aspx
Afterward, i myself interpret the diagram into the image below: This is an operation of SharePoint 2013 search from my understanding.
My question is: "Could you please advise me whether i understand correctly about the "search architecture" - SharePoint 2013 - from my below analytic?"
******************* My analysis of "Search operation " *****************************
1. User enter a string of information that he/she wants to looking for. The string is sent to query components.
2. Query processing components will:
- Analyze the Search queries.
- Perform linguistic processing. Such as "word-breaking" and "stemming".
- Optimize precision, recall, relevancy.
- Submit to index component.
* Later on, index component will gather data from 2 source:
- Crawl and components process.
- Analytic process.
3. Gathering Data from Crawl and components.
3.1.
Crawl component will collect crawling content sources: invoke connectors/ protocol handler to interact with content source to retrieve data.
- Type of data:
+ Actual data.
+ Metadata.
- At the same time, the crawl components will:
+ Store information about crawled items on crawled DB. Crawl component will write the following information to crawl Database:
* Last crawl time.
* Last crawl ID.
* Type of updating during last crawl.
+ Track crawl history.
è After successfully gathering information from content resource, the crawled
data will be sent to "content processing component".
3.2. Content processing component:
- Transform crawled items into "artifacts" that can be included in "search index".
+ How to transform: performing some operation such as "document parsing
and property mapping".
- Perform linguistic process, such as "language detection + entity extraction".
- At the same time, content processing component will write information about "links + URL" to the links database.
è When finish, content processing will send data to index component.
4. Gathering data from Analytic process.
* Explain about components in this part:
4.1. Analytic process component.
- Operations: search analytic + usage analytic.
- Aims: improve search relevance, create search reports, and generate recommendations and deep links.
4.1.1. Search analytic:
- Extracting information
+ Link
+ Number of times clicked.
+ Anchor text.
+ Data related to people.
+ Metadata.
4.1.2. Usage analytic:
- Analyze usage log information. (retrieve this info from the font-end via event store).
è Generate usage and statistic reports, store in "analytics reporting
Database".
4.2. Analytic reporting database.
- Result of usage analytics: usage + statistic reports.
4.3. Link database.
- Store information of:
+ search clicks.
+ Number of times people click on a search result from the search result page.
4.4. Event store:
- Usage events ( such as number of times viewed).
*** operation of "analytic processing component ***
- Get information from "link DB", "analytic DB", "event store".
- Extracting information (links, number of times an items clicked, anchor text, data related to people, metadata …)
- Send information to "index components".
- At the same time, write new information to "link DB" + "analytic DB".
5. "index and query process"
- Receive processed items from "content processing components" "analytic processing components"
è write those items to an index file.
- Send back results to "query processing component".
6. "Query processing component" Return a set (results) based on the processed query back to the query processing component.

Answer 1

Hi,
Search in SharePoint 2013 has been re-architected. You could refer Figure 1 from the link below for big picture of Search process and components:
http://msdn.microsoft.com/en-us/library/office/jj163300(v=office.15).aspx
For some basic concepts, you could refer to:
http://technet.microsoft.com/en-us/library/jj219738(v=office.15).aspx
If you would like more detail information about search, you might need to contact Microsoft support engineer for more sufficient information.
Regards,
Rebecca Tu
TechNet Community Support