@@ -221,10 +221,10 @@ Outline a high level design with all important components.
### Step 3: Design core components
Dive into details for each core component. For example, if you were asked to [design a url shortening service](https://github.com/donnemartin/system-design/blob/master/solutions/system_design/pastebin/README.md), discuss:
Dive into details for each core component. For example, if you were asked to [design a url shortening service](https://github.com/donnemartin/system-design-primer/blob/master/solutions/system_design/pastebin/README.md), discuss:
* Generating and storing a hash of the full url
*[MD5](https://github.com/donnemartin/system-design/blob/master/solutions/system_design/pastebin/README.md) and [Base62](https://github.com/donnemartin/system-design/blob/master/solutions/system_design/pastebin/README.md)
*[MD5](https://github.com/donnemartin/system-design-primer/blob/master/solutions/system_design/pastebin/README.md) and [Base62](https://github.com/donnemartin/system-design-primer/blob/master/solutions/system_design/pastebin/README.md)
* Hash collisions
* SQL or NoSQL
* Database schema
...
...
@@ -267,60 +267,60 @@ Check out the following links to get a better idea of what to expect:
| Design the data structures for a social network | [Solution](https://github.com/donnemartin/system-design/blob/master/solutions/system_design/social_graph/README.md) |
| Design a key-value store for a search engine | [Solution](https://github.com/donnemartin/system-design/blob/master/solutions/system_design/query_cache/README.md) |
| Design a system that scales to millions of users on AWS | [Solution](https://github.com/donnemartin/system-design/blob/master/solutions/system_design/scaling_aws/README.md) |
| Design the data structures for a social network | [Solution](https://github.com/donnemartin/system-design-primer/blob/master/solutions/system_design/social_graph/README.md) |
| Design a key-value store for a search engine | [Solution](https://github.com/donnemartin/system-design-primer/blob/master/solutions/system_design/query_cache/README.md) |
| Design a system that scales to millions of users on AWS | [Solution](https://github.com/donnemartin/system-design-primer/blob/master/solutions/system_design/scaling_aws/README.md) |
| Add a system design question | [Contribute](#contributing) |
### Design Pastebin.com (or Bit.ly)
[View exercise and solution](https://github.com/donnemartin/system-design/blob/master/solutions/system_design/pastebin/README.md)
[View exercise and solution](https://github.com/donnemartin/system-design-primer/blob/master/solutions/system_design/pastebin/README.md)
### Design the Twitter timeline and search (or Facebook feed and search)
[View exercise and solution](https://github.com/donnemartin/system-design/blob/master/solutions/system_design/twitter/README.md)
[View exercise and solution](https://github.com/donnemartin/system-design-primer/blob/master/solutions/system_design/twitter/README.md)
### Design a web crawler
[View exercise and solution](https://github.com/donnemartin/system-design/blob/master/solutions/system_design/web_crawler/README.md)
[View exercise and solution](https://github.com/donnemartin/system-design-primer/blob/master/solutions/system_design/web_crawler/README.md)
### Design Mint.com
[View exercise and solution](https://github.com/donnemartin/system-design/blob/master/solutions/system_design/mint/README.md)
[View exercise and solution](https://github.com/donnemartin/system-design-primer/blob/master/solutions/system_design/mint/README.md)
### Design the data structures for a social network
[View exercise and solution](https://github.com/donnemartin/system-design/blob/master/solutions/system_design/social_graph/README.md)
[View exercise and solution](https://github.com/donnemartin/system-design-primer/blob/master/solutions/system_design/social_graph/README.md)
### Design a key-value store for a search engine
[View exercise and solution](https://github.com/donnemartin/system-design/blob/master/solutions/system_design/query_cache/README.md)
[View exercise and solution](https://github.com/donnemartin/system-design-primer/blob/master/solutions/system_design/query_cache/README.md)
### Design Amazon's sales ranking by category feature
[View exercise and solution](https://github.com/donnemartin/system-design/blob/master/solutions/system_design/sales_rank/README.md)
[View exercise and solution](https://github.com/donnemartin/system-design-primer/blob/master/solutions/system_design/sales_rank/README.md)
### Design a system that scales to millions of users on AWS
[View exercise and solution](https://github.com/donnemartin/system-design/blob/master/solutions/system_design/scaling_aws/README.md)
[View exercise and solution](https://github.com/donnemartin/system-design-primer/blob/master/solutions/system_design/scaling_aws/README.md)
