Application design
In this section, we will describe some useful tips for application design that we did not cover or emphasize enough in the previous chapters.
Schema-less doesn’t mean schema design-less
A big part of MongoDB’s success can be attributed to the increased popularity of object-relational maps (ORMs)/object document maps (ODMs). Especially with languages such as JavaScript and the MongoDB, Express, Angular, and Node (MEAN) stack, the developer can use JavaScript from the frontend (Angular/Express) to the backend (Node.js) to the database (MongoDB). This is frequently coupled with an ODM that abstracts away the internals of the database, mapping collections to Node.js models.
The major advantage is that developers don’t need to fiddle with the database schema design, as this is automatically provided by the ODM. The downside is that database collections and schema designs are left up to the ODM, which does not have the business domain...
