New product development process

New product development process
Referencing style is APA 6th edition.The literature review topic is new product development process.Therefore the main purpose is to critically discuss and explain the new product development process. Please find below tutor's instructions :
This needs to be a review of the literature to demonstrate your understanding of theories and thinking - not just a description of what takes place at each stage.Please remember this is a review of the literature and not a discussion of your own thoughts, hence referencing is very important.Literature review should be a review of the current academic (academic journal articles) and not a rewrite of 4 year old text books on the topic.Please avoid to be descriptive, the most important thing is a critical discussion. While it is important to include seminal work such as the 1982 study - you also need to ensure that you have reviewed current academic work journals (2013,2014/2015)It is very important to use up to date academic journals.The most important thing is critical discussion, please avoid to be too descriptive.