1) Star | Problem child | Cash cow | Dog | SnapchatWhatsApp | KakaoTalk | Facebook | WeChat |

2)
Facebook – Cash cows are products or services that have achieved market leader status and provide positive cash flows. These products produce profits long after cash back is achieved. By generating steady streams of income, cash cows help fund the overall growth of a company. They (like Facebook) usually bring in cash for years, until new technology or shifting market preferences renders them obsolete. This is why I put Facebook at cash cow because it has all these features.

Snapchat - Stars are high growth products competing in markets where they are strong compared with the competition. Often Stars need heavy investment to sustain growth. Eventually growth will slow and, assuming they keep their market share, Stars will become Cash Cows. Snapchat is still growing so is in the Star stage but will eventually join Facebook in cash cow

3)

WeChat will be facing some facors that are causing a threat to the success of it.

One of these factors is that WeChat is not growing. WeChat is based in China which can be a good thing as there are so many people living in china however over time when everyone in China has tired WeChat the demand for it will no longer grow and demand will fall rapidly so they need to expand to other countries like apps such as Facebook has done in order to continue growing and no face a massive problem in the years to come.

The second factor is the growing strength of the competition. As Facebook and new comer Snapchat continue to grow and get bigger, WeChat will have a problem as nobody will want to download their app as there are better alternative out there.

4)
The Boston Matrix is a well-known tool for the marketing manager. It was developed by the large US consulting group and is an approach to product portfolio planning. It has two