I bet your gun had no bullets, just like most people do not know the definition of the product manager of the same. Learning is defined as tedious process, their understanding and conversion is the key. Today we will talk , "the official definition of boring" and "personal understanding" two topics.
The official definition of boring
Well defined learning, first Baidu, then Google it.
The definition of Product Manager
Wikipedia:
Product Manager (English: Product manager, abbreviation: PM), also known as product planning, refers to the planning and management of personnel for an item or a certain type of product in the company, is mainly responsible for product development, manufacturing , marketing, channel and so on. Product Manager role is a difficult to define, if you must define a word, then the product manager for end-user services, is responsible for the entire product lifecycle people.
Baidu Encyclopedia:
Product Manager (Product Manager) is responsible for enterprise product management positions, product manager responsible for market research and product according to market demand and users, etc., to determine what products to develop, what kind of business model, business model options, etc. . And to promote appropriate product development organization, he also according to the product life cycle , coordinated research and development, marketing, operations and other organizations to identify and implement appropriate product strategy, as well as a range of other related products management activities.
Since it referred to the product life cycle, and that the way we look at how it is.
Product Lifecycle
Wikipedia:
product life cycle (product life cycle), referred to as PLC, is the product of market life, that is a new product into the market from the beginning of the whole process to be out of the market. US economist Vernon Smith (Vernon Lomax Smith) that: the product life means life ShangXi marketing, product and human life, like, go through the formation, growth, maturity, decline this period. In terms of products, which is to undergo a development, introduction, growth, maturity, decline phase. And this cycle in the country's different skill levels, timing and processes taking place is not the same, there is a big gap and during the time difference, it is this difference, the performance gap between different countries in technology, it reflects differences in the same product in different national markets competitive position, which determines the changes in the international trade and international investment.
The introduction period: the introduction period refers to the product from design to market output until the testing stage. New products to market, will enter the introduction period. At this time, less variety of products, customers do not understand the product, except for a small number of customers pursuit of novelty, almost no one actually buy the product. In order to expand market producers, we had to put a lot of marketing costs, the product promotion. The stage due to technical limitations of production, small batch production, high manufacturing costs, large advertising costs, sales prices, sales volume is very limited, usually not profitable enterprise, but may be a loss.
Growing: After the introduction of products into sales success, will enter the growth stage. Growth stage refers to the product test marketing through good effect, buyers gradually accept the product, product foothold in the market and open market. This is the stage of growth in demand, demand and sales increased rapidly. A significant decline in the cost of production, the rapid growth of profits. At the same time, competitors see profitable, they would have entered the market to compete, increase the supply of similar products, the price subsequently subordinates, corporate profit growth is slowing, and finally reach the highest point of the life cycle profit.
Maturity: means the product into mass production and stability into the market, after growing, with the increasing number of people buying products, the market demand is saturated. At this time, the popularity of the product and the increasingly standardized, low cost and high yield. Sales growth is slow until the turn to fall, due to increased competition, leading to the production of similar products have increased between enterprises to increase investment in product quality, color, size, packaging services, increase the cost to some extent.
衰退期：指产品进入淘汰阶段。随着科技的发展以及消费习惯的改变等原因，产品的销售量和利润持续下降，产品在市场上已经老化，不能适应市场需求，市场上已经有其它性能更好、价格更低的新产品，足以满足消费者的需求。此时成本较高的企业就会由于无利可图而陆续停止生产，该类产品的生命周期也就陆续结束，以至最后完全撤出市场。
细心的同学可能会发现，这里少了一个开发期。并不是我偷懒了，是中文维基上本身没有这块的定义。期待，冉冉升起的同学们“苟富贵勿相忘”，一同完善知识家园。
个人的理解
产品经理定义的理解
产品经理首先是个普通职位。其次它的职能是规划和把握产品的方向。目标是哄金主爸爸开心。终极目标是在哄金主爸爸开心的同时，让产品吸引到预期的用户，达成预期的目标。
举个例子：假设金主爸爸是去航海的“海贼王”，那么产品同学就负责控制船只航行的方向，研发、设计、运营等同学就保障船只能够正常航行。航行的过程中，注意不要惹得“海贼王”不开心了，避免被扔下船去喂鲨鱼。航行的理想结果，就是大家都开开心心且完完整整的到了预期的地点，完结撒花。
产品生命周期的理解
引入期：这是idea的小范围试水阶段，无非就是用户接受或者不接受两种情况。这个阶段产品经理应该关注目标用户的真实诉求，找准用户痛点，一步到位，爽到你的用户。
成长期：这是产品快速成长的阶段，俗话说“男人可能会喜欢你一时的幼稚，但是不会喜欢你一世的无知”，用户就是这样的“大猪蹄子”。这个阶段产品经理既要抓用户增长，又要抓住大部分用户的心，让自己的产品成为用户的理想型。（这么一说爱情好像也是这样，最开始大家的理想型可能是王子与公主，但是随着时间的磨合，早已忘记了什么理想型，TA的举手投足就是你的理想型。所以，产品同学，一定要学会调教用户，引导用户，而不是一味地嘤嘤嘤，去扮演一个所谓的理想型。）
成熟期：这是产品相对稳定的一个阶段。产品经理应该关注客户留存和商业变现。这两者一般是矛盾的，因为暴力变现本身就是“只加价不加量”的天秀操作，当然会产生矛盾。但是，咱们“既加价又加量”不仅如此，还加足加够，加到用户舒服，用户那一定是舔着舔着来。所以怎样低成本的满足客户需求并带来实际的商业效益，是这个阶段，最考验产品经理的点。
衰退期：这是产品的尾声也是必经阶段，好像人的生命尽头，各个器官都宣布已经灯枯油尽，可能只有海绵体还能勉强喊出，“我要请求最后一次充能！”。这个阶段产品经理应该及时行乐，好好地和用户告别和产品告别。（这里我想到了柯达公司，直到破产他们生产的胶卷仍然是最好的，但是用户是大猪蹄子嘛，随着用户被新的产品经理从曾经的“胶卷时代”被引导/调到到了全新的“数码时代”，任凭柯达再多的哭喊用户是回不去的。所以，与时俱进，时刻让自己成为时代的弄潮儿，才能不被时代淘汰！）
最后，关于产品经理的定义，可能1000个人有1000种说法。谁都有被骂的时候，我也经历过求职时被怒吼你到底懂不懂产品的境遇。但是不重要，吐槽咱们的人既然观点这么犀利，为啥百度百科和维基百科不收录他的观点呢？为啥教科书不按他说的写呢？为啥他还是那么默默无闻只能在办公室对着刚接触产品行业的新人无能狂怒呢？
不就是找份工作，没什么大不了的。不要气馁和灰心，更不要自闭，抬起头，多笑笑，外边的花儿正香，天空正蓝，美好的生活正等待着你我去抒写新的篇章。
在本章的最后，附上个人很喜欢的，知乎“薛老板”对产品经理岗位的回答：
产品经理应该是“善于发现生活中的各种缺陷，给出解决方案，同时能协调资源落地自己的方案，让生活一步步变得更美好的人”。
产品不一定指有形的实物，很多无形的服务也可以看成产品。只要你有做产品的思维，并不断地实践，你就是生活中的产品经理。