A product consist of sets or family of attributes, which are often supplemented with attributes to uniquely define its characteristics or behavior, called a variety of that product. 
Fashion industry often have to deal with lots of variations for the same product which are difficult to manage, especially when there is an update over the attributes.
E.g. For several products having variations on color & sizes, as soon as you need to edit a description or a picture, you have to edit attributes of each variant type which is a time consuming task.
In this video, you will see how easy it is to manage massive fashion SKUs with Akeneo's Inner Variation.
Akeneo Feature: Inner Variation
Inner variation allows users to manage product variations: products can have parent/child relationships, for instance children can inherit from the parent product attributes, they can also have their own attributes.
An Inner variation product is an Akeneo product with a specific behavior
Each color of a shoe is an Akeneo product : example LARA black flat shoes
When we edit a product, we see an extra tab ‘Variations’, from where every available shoe size is managed. Inner variation allows you to add an extra level of enrichment.
The above video on Inner Variation talks about 
  • What inner variation solves?
  • And What are the main functionality does Inner variation brings?
The other key questions that Inner Variation feature tries to answer are:
1. How to view the number of variations and its completeness from within the product grid? You may also perform the below actions on variations from the same grid
  • Display the variation edit form
  • Edit attributes of a variation
  • Classify the variation
  • Delete the variation
  • Toggle the status of a variation 
2. How can you perform enrichment of product and variation?
3. How can you add a new variation?
4. How you can choose to work only with products having variations using quick filters
5. Variation edit form offers the same possibilities as a standard Akeneo product edit form like  Completeness, Comments, History Categories, Associations. You can also link a single SKU to other single SKUs.
6. How can you reach the parent product of a variation from its edit form. 
7. How can you still use mass and/or sequential edit to make variations enrichment easier?
7. How to work with parent to children relation?
8. How to Import and Export products having variations?
Similarly, any industry dealing with product variations can get the benefit of akeneo's Inner Variation feature to solve the problem of managing large number of SKU's in short time. Other industries could be – Electronics (phones with different colour back cases), media (different sizes of images/photos), FMCG (size, weight of products could differ) etc.
Here is the transcript of the video
In this video we will walk you through the Akeneo Inner Variation Bundle
We will talk about..
What inner variation solves?
what are the main functionality does Inner variation brings?
So, if I explain you the context, till now for several products when you have a lot of colour and 
size, as soon as you need to edit some description or some picture or some information, you 
have to mass edit the attribute values, which could be very time consuming.
So to help our customers we decided to do provide an extra tab called “Variations” within the product edit form.
Let’s say you have a product model called LARA.
You have LARA in tan colour, in black colour and as many colours as you want.
So, in the product edit form for this product, you can have several variations.
You can have variation on size as we are talking about shoes but in general you may have 
variations on any attribute.
So what it look like in Akeneo, you have a model and a specific tab called ‘Variations’ listing all 
the SKUs and attributes for that SKU. 
Let’s see how it works in Akeneo.
Let’s quickly move to Products from Enrich menu and filter to see only Products with Variations.
First think that you can notice is that completeness of the model LARA shoes in black colour 
and a new information on the number of variations for each model.
So here it means that you have 5 variations of LARA shoes in black colour, 4 for the grey and 4 for the tan one.
You also have another information, i.e. the colour on these numbers.
Green Colour depicts that all the variations are complete, yellow means that only some are 
complete and the red/wine means that no variations are complete.
So, you can see all this information from the main grid itself.
It is good for the customers to find all the information on the one page regarding the variations 
and their completeness so that they can identify quickly if they have some enrichment to do.